./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/up.i --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5189fb62 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-invgen/up.i -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ff5c10c83c8d29dcc2c2798035fa2754df224d2313ad9c91b6ee5bb6ca3d9a9f --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-5189fb6-m [2024-09-12 21:42:25,134 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 21:42:25,204 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 21:42:25,209 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 21:42:25,221 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 21:42:25,242 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 21:42:25,243 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 21:42:25,243 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 21:42:25,244 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 21:42:25,245 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 21:42:25,246 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 21:42:25,246 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 21:42:25,247 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 21:42:25,249 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 21:42:25,249 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 21:42:25,249 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 21:42:25,250 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 21:42:25,250 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 21:42:25,250 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 21:42:25,251 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 21:42:25,251 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 21:42:25,254 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 21:42:25,254 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 21:42:25,254 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 21:42:25,255 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 21:42:25,255 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 21:42:25,255 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 21:42:25,255 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 21:42:25,256 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 21:42:25,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 21:42:25,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 21:42:25,257 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 21:42:25,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 21:42:25,258 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 21:42:25,258 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 21:42:25,258 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 21:42:25,258 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 21:42:25,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 21:42:25,259 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 21:42:25,260 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 21:42:25,260 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 21:42:25,260 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 21:42:25,261 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/automizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff5c10c83c8d29dcc2c2798035fa2754df224d2313ad9c91b6ee5bb6ca3d9a9f Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 [2024-09-12 21:42:25,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 21:42:25,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 21:42:25,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 21:42:25,528 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 21:42:25,529 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 21:42:25,530 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-invgen/up.i [2024-09-12 21:42:26,895 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 21:42:27,080 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 21:42:27,081 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/up.i [2024-09-12 21:42:27,088 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/48f55e4cd/2154033bcf364a989ae49512c03a73ef/FLAG2d8ba4fa3 [2024-09-12 21:42:27,466 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/48f55e4cd/2154033bcf364a989ae49512c03a73ef [2024-09-12 21:42:27,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 21:42:27,469 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 21:42:27,470 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 21:42:27,471 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 21:42:27,476 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 21:42:27,477 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 09:42:27" (1/1) ... [2024-09-12 21:42:27,478 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@469a354f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 09:42:27, skipping insertion in model container [2024-09-12 21:42:27,478 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 09:42:27" (1/1) ... [2024-09-12 21:42:27,496 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 21:42:27,630 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/up.i[893,906] [2024-09-12 21:42:27,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 21:42:27,652 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 21:42:27,664 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/up.i[893,906] [2024-09-12 21:42:27,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 21:42:27,681 INFO L204 MainTranslator]: Completed translation [2024-09-12 21:42:27,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 09:42:27 WrapperNode [2024-09-12 21:42:27,681 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 21:42:27,682 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 21:42:27,683 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 21:42:27,683 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 21:42:27,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 09:42:27" (1/1) ... [2024-09-12 21:42:27,700 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 09:42:27" (1/1) ... [2024-09-12 21:42:27,706 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 21:42:27,707 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 21:42:27,708 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 21:42:27,708 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 21:42:27,708 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 21:42:27,718 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 09:42:27" (1/1) ... [2024-09-12 21:42:27,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 09:42:27" (1/1) ... [2024-09-12 21:42:27,719 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 09:42:27" (1/1) ... [2024-09-12 21:42:27,729 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 21:42:27,729 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 09:42:27" (1/1) ... [2024-09-12 21:42:27,730 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 09:42:27" (1/1) ... [2024-09-12 21:42:27,731 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 09:42:27" (1/1) ... [2024-09-12 21:42:27,734 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 09:42:27" (1/1) ... [2024-09-12 21:42:27,735 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 09:42:27" (1/1) ... [2024-09-12 21:42:27,736 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 09:42:27" (1/1) ... [2024-09-12 21:42:27,737 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 21:42:27,738 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 21:42:27,738 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 21:42:27,738 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 21:42:27,739 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 09:42:27" (1/1) ... [2024-09-12 21:42:27,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 21:42:27,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:27,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 21:42:27,781 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 21:42:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 21:42:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 21:42:27,829 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 21:42:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 21:42:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 21:42:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 21:42:27,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 21:42:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 21:42:27,830 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 21:42:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 21:42:27,895 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 21:42:27,898 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 21:42:28,055 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-09-12 21:42:28,056 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 21:42:28,080 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 21:42:28,081 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-12 21:42:28,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 09:42:28 BoogieIcfgContainer [2024-09-12 21:42:28,082 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 21:42:28,085 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 21:42:28,085 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 21:42:28,089 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 21:42:28,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 09:42:27" (1/3) ... [2024-09-12 21:42:28,090 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc9aa43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 09:42:28, skipping insertion in model container [2024-09-12 21:42:28,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 09:42:27" (2/3) ... [2024-09-12 21:42:28,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc9aa43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 09:42:28, skipping insertion in model container [2024-09-12 21:42:28,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 09:42:28" (3/3) ... [2024-09-12 21:42:28,093 INFO L112 eAbstractionObserver]: Analyzing ICFG up.i [2024-09-12 21:42:28,109 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 21:42:28,109 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-12 21:42:28,159 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 21:42:28,164 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7e65d0eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 21:42:28,164 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-12 21:42:28,167 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 21:42:28,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-09-12 21:42:28,173 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:28,174 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:28,175 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:28,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:28,179 INFO L85 PathProgramCache]: Analyzing trace with hash -2044494321, now seen corresponding path program 1 times [2024-09-12 21:42:28,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:28,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117258857] [2024-09-12 21:42:28,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:28,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:28,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:28,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 21:42:28,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:28,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117258857] [2024-09-12 21:42:28,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117258857] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 21:42:28,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 21:42:28,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 21:42:28,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835842915] [2024-09-12 21:42:28,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 21:42:28,356 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 21:42:28,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:28,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 21:42:28,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 21:42:28,382 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 21:42:28,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:28,407 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2024-09-12 21:42:28,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 21:42:28,411 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-09-12 21:42:28,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:28,416 INFO L225 Difference]: With dead ends: 34 [2024-09-12 21:42:28,417 INFO L226 Difference]: Without dead ends: 16 [2024-09-12 21:42:28,420 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 21:42:28,424 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:28,425 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 21:42:28,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-09-12 21:42:28,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-09-12 21:42:28,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 21:42:28,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2024-09-12 21:42:28,458 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 12 [2024-09-12 21:42:28,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:28,458 INFO L474 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2024-09-12 21:42:28,459 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 21:42:28,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:28,461 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2024-09-12 21:42:28,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-09-12 21:42:28,462 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:28,462 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:28,462 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 21:42:28,463 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:28,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:28,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1299541749, now seen corresponding path program 1 times [2024-09-12 21:42:28,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:28,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652277499] [2024-09-12 21:42:28,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:28,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:28,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:28,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:28,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 21:42:28,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:28,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652277499] [2024-09-12 21:42:28,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652277499] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 21:42:28,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 21:42:28,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 21:42:28,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815500802] [2024-09-12 21:42:28,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 21:42:28,656 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 21:42:28,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:28,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 21:42:28,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 21:42:28,660 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 21:42:28,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:28,689 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2024-09-12 21:42:28,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 21:42:28,691 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-09-12 21:42:28,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:28,693 INFO L225 Difference]: With dead ends: 28 [2024-09-12 21:42:28,693 INFO L226 Difference]: Without dead ends: 17 [2024-09-12 21:42:28,694 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 21:42:28,695 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:28,696 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 21:42:28,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-09-12 21:42:28,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-09-12 21:42:28,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 21:42:28,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2024-09-12 21:42:28,701 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 12 [2024-09-12 21:42:28,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:28,701 INFO L474 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2024-09-12 21:42:28,702 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 21:42:28,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:28,702 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2024-09-12 21:42:28,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 21:42:28,703 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:28,703 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:28,703 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 21:42:28,704 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:28,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:28,704 INFO L85 PathProgramCache]: Analyzing trace with hash 546941463, now seen corresponding path program 1 times [2024-09-12 21:42:28,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:28,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142512873] [2024-09-12 21:42:28,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:28,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:28,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:28,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:28,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 21:42:28,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:28,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142512873] [2024-09-12 21:42:28,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142512873] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:28,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879370885] [2024-09-12 21:42:28,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:28,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:28,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:28,825 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:28,827 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 21:42:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:28,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 21:42:28,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:28,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 21:42:28,933 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 21:42:28,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879370885] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 21:42:28,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 21:42:28,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2024-09-12 21:42:28,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461098622] [2024-09-12 21:42:28,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 21:42:28,934 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 21:42:28,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:28,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 21:42:28,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 21:42:28,936 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 21:42:28,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:28,987 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2024-09-12 21:42:28,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 21:42:28,988 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2024-09-12 21:42:28,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:28,990 INFO L225 Difference]: With dead ends: 29 [2024-09-12 21:42:28,990 INFO L226 Difference]: Without dead ends: 27 [2024-09-12 21:42:28,991 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-09-12 21:42:29,011 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:29,011 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 42 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 21:42:29,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-09-12 21:42:29,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2024-09-12 21:42:29,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 21:42:29,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2024-09-12 21:42:29,023 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 13 [2024-09-12 21:42:29,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:29,024 INFO L474 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2024-09-12 21:42:29,024 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 21:42:29,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:29,025 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2024-09-12 21:42:29,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-09-12 21:42:29,025 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:29,026 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:29,042 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-12 21:42:29,226 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:29,227 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:29,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:29,227 INFO L85 PathProgramCache]: Analyzing trace with hash 51481388, now seen corresponding path program 1 times [2024-09-12 21:42:29,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:29,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025176402] [2024-09-12 21:42:29,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:29,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:29,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:29,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-09-12 21:42:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:29,405 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 21:42:29,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:29,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025176402] [2024-09-12 21:42:29,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025176402] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:29,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250377549] [2024-09-12 21:42:29,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:29,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:29,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:29,409 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:29,411 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 21:42:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:29,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 21:42:29,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:29,545 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 21:42:29,548 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:29,621 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 21:42:29,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250377549] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:29,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:29,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-09-12 21:42:29,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633951088] [2024-09-12 21:42:29,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:29,625 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 21:42:29,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:29,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 21:42:29,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-09-12 21:42:29,627 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 21:42:29,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:29,674 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2024-09-12 21:42:29,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 21:42:29,675 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 20 [2024-09-12 21:42:29,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:29,677 INFO L225 Difference]: With dead ends: 38 [2024-09-12 21:42:29,677 INFO L226 Difference]: Without dead ends: 24 [2024-09-12 21:42:29,677 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-09-12 21:42:29,678 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:29,679 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 21:42:29,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-09-12 21:42:29,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-09-12 21:42:29,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.125) internal successors, (18), 17 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 21:42:29,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2024-09-12 21:42:29,684 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 20 [2024-09-12 21:42:29,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:29,684 INFO L474 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2024-09-12 21:42:29,685 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 21:42:29,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:29,685 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2024-09-12 21:42:29,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 21:42:29,686 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:29,686 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:29,700 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 21:42:29,890 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:29,891 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:29,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:29,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1809000392, now seen corresponding path program 2 times [2024-09-12 21:42:29,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:29,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667533404] [2024-09-12 21:42:29,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:29,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:30,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:30,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 21:42:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:30,018 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 21:42:30,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:30,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667533404] [2024-09-12 21:42:30,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667533404] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:30,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211988348] [2024-09-12 21:42:30,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:42:30,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:30,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:30,025 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:30,026 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 21:42:30,061 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:42:30,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:30,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 21:42:30,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:30,122 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 21:42:30,123 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:30,192 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 21:42:30,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211988348] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:30,193 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:30,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 10 [2024-09-12 21:42:30,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722535609] [2024-09-12 21:42:30,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:30,194 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 21:42:30,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:30,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 21:42:30,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-09-12 21:42:30,196 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 8 states have internal predecessors, (19), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 21:42:30,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:30,244 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2024-09-12 21:42:30,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 21:42:30,245 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 8 states have internal predecessors, (19), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2024-09-12 21:42:30,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:30,246 INFO L225 Difference]: With dead ends: 37 [2024-09-12 21:42:30,246 INFO L226 Difference]: Without dead ends: 35 [2024-09-12 21:42:30,247 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 6 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-09-12 21:42:30,247 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:30,248 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 53 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 21:42:30,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-09-12 21:42:30,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2024-09-12 21:42:30,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 22 states have internal predecessors, (23), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 21:42:30,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2024-09-12 21:42:30,254 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 21 [2024-09-12 21:42:30,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:30,255 INFO L474 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2024-09-12 21:42:30,255 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 8 states have internal predecessors, (19), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 21:42:30,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:30,255 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2024-09-12 21:42:30,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-12 21:42:30,256 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:30,256 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:30,271 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-12 21:42:30,457 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:30,457 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:30,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:30,458 INFO L85 PathProgramCache]: Analyzing trace with hash -835361301, now seen corresponding path program 3 times [2024-09-12 21:42:30,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:30,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37106939] [2024-09-12 21:42:30,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:30,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:30,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:30,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 21:42:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:30,578 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 21:42:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:30,582 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 21:42:30,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:30,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37106939] [2024-09-12 21:42:30,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37106939] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:30,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499085878] [2024-09-12 21:42:30,582 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:42:30,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:30,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:30,584 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:30,588 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 21:42:30,628 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-12 21:42:30,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:30,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 21:42:30,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:30,727 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 21:42:30,729 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:30,806 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 21:42:30,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499085878] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:30,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:30,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2024-09-12 21:42:30,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64340198] [2024-09-12 21:42:30,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:30,809 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 21:42:30,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:30,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 21:42:30,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-09-12 21:42:30,810 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 7 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 21:42:30,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:30,875 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2024-09-12 21:42:30,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 21:42:30,875 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 7 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 28 [2024-09-12 21:42:30,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:30,876 INFO L225 Difference]: With dead ends: 49 [2024-09-12 21:42:30,877 INFO L226 Difference]: Without dead ends: 32 [2024-09-12 21:42:30,877 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 53 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-09-12 21:42:30,878 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:30,878 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:30,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-09-12 21:42:30,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-09-12 21:42:30,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 23 states have internal predecessors, (24), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 21:42:30,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2024-09-12 21:42:30,884 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 28 [2024-09-12 21:42:30,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:30,884 INFO L474 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2024-09-12 21:42:30,885 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 7 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 21:42:30,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:30,885 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2024-09-12 21:42:30,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 21:42:30,886 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:30,886 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:30,901 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-12 21:42:31,086 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:31,087 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:31,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:31,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1662458121, now seen corresponding path program 4 times [2024-09-12 21:42:31,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:31,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149015356] [2024-09-12 21:42:31,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:31,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:31,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:31,230 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:31,236 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 21:42:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:31,241 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 21:42:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:31,256 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 21:42:31,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:31,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149015356] [2024-09-12 21:42:31,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149015356] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:31,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211502518] [2024-09-12 21:42:31,262 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:42:31,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:31,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:31,264 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:31,265 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 21:42:31,303 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:42:31,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:31,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 21:42:31,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:31,352 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 21:42:31,353 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:31,425 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 21:42:31,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211502518] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:31,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:31,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 11 [2024-09-12 21:42:31,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612502117] [2024-09-12 21:42:31,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:31,427 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 21:42:31,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:31,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 21:42:31,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-09-12 21:42:31,428 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 21:42:31,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:31,494 INFO L93 Difference]: Finished difference Result 45 states and 47 transitions. [2024-09-12 21:42:31,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 21:42:31,494 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 29 [2024-09-12 21:42:31,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:31,495 INFO L225 Difference]: With dead ends: 45 [2024-09-12 21:42:31,495 INFO L226 Difference]: Without dead ends: 43 [2024-09-12 21:42:31,495 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 58 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-09-12 21:42:31,496 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:31,496 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 65 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 21:42:31,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-09-12 21:42:31,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2024-09-12 21:42:31,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 28 states have internal predecessors, (29), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 21:42:31,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2024-09-12 21:42:31,504 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 29 [2024-09-12 21:42:31,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:31,505 INFO L474 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2024-09-12 21:42:31,505 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 21:42:31,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:31,506 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2024-09-12 21:42:31,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-09-12 21:42:31,507 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:31,507 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:31,521 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 21:42:31,710 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-12 21:42:31,711 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:31,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:31,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1955720628, now seen corresponding path program 5 times [2024-09-12 21:42:31,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:31,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454338381] [2024-09-12 21:42:31,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:31,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:31,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:31,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:31,827 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 21:42:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:31,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 21:42:31,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:31,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 21:42:31,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:31,836 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 21:42:31,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:31,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454338381] [2024-09-12 21:42:31,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454338381] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:31,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074315994] [2024-09-12 21:42:31,837 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:42:31,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:31,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:31,839 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:31,840 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 21:42:31,881 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-09-12 21:42:31,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:31,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 21:42:31,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:31,994 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 21:42:31,994 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:32,095 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 21:42:32,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074315994] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:32,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:32,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2024-09-12 21:42:32,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862412117] [2024-09-12 21:42:32,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:32,096 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 21:42:32,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:32,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 21:42:32,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-09-12 21:42:32,097 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 9 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 21:42:32,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:32,163 INFO L93 Difference]: Finished difference Result 60 states and 65 transitions. [2024-09-12 21:42:32,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 21:42:32,163 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 9 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 36 [2024-09-12 21:42:32,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:32,164 INFO L225 Difference]: With dead ends: 60 [2024-09-12 21:42:32,164 INFO L226 Difference]: Without dead ends: 40 [2024-09-12 21:42:32,165 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 68 SyntacticMatches, 7 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-09-12 21:42:32,165 INFO L434 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:32,165 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:32,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-09-12 21:42:32,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-09-12 21:42:32,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 29 states have internal predecessors, (30), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 21:42:32,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2024-09-12 21:42:32,179 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 36 [2024-09-12 21:42:32,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:32,179 INFO L474 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2024-09-12 21:42:32,180 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 9 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 21:42:32,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:32,180 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2024-09-12 21:42:32,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 21:42:32,181 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:32,181 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:32,198 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-12 21:42:32,381 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:32,382 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:32,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:32,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1715849048, now seen corresponding path program 6 times [2024-09-12 21:42:32,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:32,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841426058] [2024-09-12 21:42:32,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:32,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:32,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:32,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 21:42:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:32,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-09-12 21:42:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:32,498 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 21:42:32,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:32,505 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 12 proven. 19 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 21:42:32,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:32,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841426058] [2024-09-12 21:42:32,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841426058] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:32,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574719985] [2024-09-12 21:42:32,507 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:42:32,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:32,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:32,509 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:32,511 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 21:42:32,552 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-09-12 21:42:32,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:32,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 21:42:32,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:32,618 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 21:42:32,618 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:32,702 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 21:42:32,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574719985] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:32,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:32,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2024-09-12 21:42:32,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215008262] [2024-09-12 21:42:32,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:32,704 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 21:42:32,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:32,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 21:42:32,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-09-12 21:42:32,705 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 10 states have internal predecessors, (25), 5 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 21:42:32,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:32,766 INFO L93 Difference]: Finished difference Result 53 states and 55 transitions. [2024-09-12 21:42:32,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 21:42:32,768 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 10 states have internal predecessors, (25), 5 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 37 [2024-09-12 21:42:32,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:32,769 INFO L225 Difference]: With dead ends: 53 [2024-09-12 21:42:32,769 INFO L226 Difference]: Without dead ends: 51 [2024-09-12 21:42:32,769 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 75 SyntacticMatches, 8 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-09-12 21:42:32,770 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:32,770 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 58 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 21:42:32,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-09-12 21:42:32,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2024-09-12 21:42:32,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 34 states have internal predecessors, (35), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 21:42:32,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2024-09-12 21:42:32,779 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 37 [2024-09-12 21:42:32,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:32,779 INFO L474 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2024-09-12 21:42:32,779 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 10 states have internal predecessors, (25), 5 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 21:42:32,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:32,780 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2024-09-12 21:42:32,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-09-12 21:42:32,781 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:32,781 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:32,796 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-12 21:42:32,981 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:32,982 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:32,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:32,982 INFO L85 PathProgramCache]: Analyzing trace with hash 640103115, now seen corresponding path program 7 times [2024-09-12 21:42:32,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:32,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152443209] [2024-09-12 21:42:32,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:32,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:32,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:33,145 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:33,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 21:42:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:33,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-09-12 21:42:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:33,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 21:42:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:33,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 21:42:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:33,159 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 24 proven. 20 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 21:42:33,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:33,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152443209] [2024-09-12 21:42:33,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152443209] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:33,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547266086] [2024-09-12 21:42:33,159 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 21:42:33,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:33,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:33,161 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:33,162 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 21:42:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:33,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 21:42:33,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:33,327 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 34 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 21:42:33,328 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:33,428 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 34 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 21:42:33,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547266086] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:33,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:33,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 20 [2024-09-12 21:42:33,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000904704] [2024-09-12 21:42:33,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:33,430 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 21:42:33,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:33,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 21:42:33,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-09-12 21:42:33,431 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 11 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 21:42:33,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:33,494 INFO L93 Difference]: Finished difference Result 71 states and 77 transitions. [2024-09-12 21:42:33,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 21:42:33,494 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 11 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 44 [2024-09-12 21:42:33,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:33,495 INFO L225 Difference]: With dead ends: 71 [2024-09-12 21:42:33,495 INFO L226 Difference]: Without dead ends: 48 [2024-09-12 21:42:33,496 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 83 SyntacticMatches, 9 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-09-12 21:42:33,496 INFO L434 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:33,497 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:33,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-09-12 21:42:33,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-09-12 21:42:33,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.0588235294117647) internal successors, (36), 35 states have internal predecessors, (36), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 21:42:33,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2024-09-12 21:42:33,503 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 44 [2024-09-12 21:42:33,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:33,503 INFO L474 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2024-09-12 21:42:33,503 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 11 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 21:42:33,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:33,504 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2024-09-12 21:42:33,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-09-12 21:42:33,504 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:33,504 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:33,521 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 21:42:33,705 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:33,705 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:33,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:33,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1884349481, now seen corresponding path program 8 times [2024-09-12 21:42:33,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:33,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789976580] [2024-09-12 21:42:33,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:33,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:33,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:33,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 21:42:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:33,823 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 21:42:33,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:33,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 21:42:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:33,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 21:42:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:33,830 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 18 proven. 31 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 21:42:33,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:33,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789976580] [2024-09-12 21:42:33,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789976580] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:33,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116089827] [2024-09-12 21:42:33,831 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:42:33,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:33,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:33,833 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:33,834 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 21:42:33,876 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:42:33,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:33,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 21:42:33,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:33,931 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 23 proven. 26 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 21:42:33,931 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:34,041 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 23 proven. 26 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 21:42:34,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116089827] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:34,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:34,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 13 [2024-09-12 21:42:34,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361285504] [2024-09-12 21:42:34,043 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:34,043 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 21:42:34,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:34,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 21:42:34,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-09-12 21:42:34,046 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 11 states have internal predecessors, (28), 6 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 21:42:34,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:34,112 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2024-09-12 21:42:34,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 21:42:34,113 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 11 states have internal predecessors, (28), 6 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 45 [2024-09-12 21:42:34,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:34,114 INFO L225 Difference]: With dead ends: 61 [2024-09-12 21:42:34,114 INFO L226 Difference]: Without dead ends: 59 [2024-09-12 21:42:34,114 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 90 SyntacticMatches, 12 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-09-12 21:42:34,114 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:34,115 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 81 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:34,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-09-12 21:42:34,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2024-09-12 21:42:34,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 39 states have (on average 1.0512820512820513) internal successors, (41), 40 states have internal predecessors, (41), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 21:42:34,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2024-09-12 21:42:34,129 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 45 [2024-09-12 21:42:34,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:34,129 INFO L474 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2024-09-12 21:42:34,129 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 11 states have internal predecessors, (28), 6 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 21:42:34,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:34,130 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2024-09-12 21:42:34,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-09-12 21:42:34,131 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:34,131 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:34,147 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 21:42:34,334 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 21:42:34,335 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:34,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:34,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1341349524, now seen corresponding path program 9 times [2024-09-12 21:42:34,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:34,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541388268] [2024-09-12 21:42:34,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:34,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:34,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:34,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 21:42:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:34,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 21:42:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:34,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 21:42:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:34,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 21:42:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:34,527 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 21:42:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:34,530 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 37 proven. 28 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 21:42:34,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:34,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541388268] [2024-09-12 21:42:34,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541388268] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:34,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996953974] [2024-09-12 21:42:34,531 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:42:34,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:34,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:34,532 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:34,535 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 21:42:34,580 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-09-12 21:42:34,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:34,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 21:42:34,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:34,735 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 50 proven. 15 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 21:42:34,736 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:34,868 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 50 proven. 15 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 21:42:34,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996953974] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:34,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:34,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 23 [2024-09-12 21:42:34,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428846466] [2024-09-12 21:42:34,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:34,869 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-12 21:42:34,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:34,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-12 21:42:34,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2024-09-12 21:42:34,870 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand has 23 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 23 states have internal predecessors, (43), 13 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 21:42:34,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:34,958 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2024-09-12 21:42:34,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 21:42:34,959 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 23 states have internal predecessors, (43), 13 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 52 [2024-09-12 21:42:34,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:34,960 INFO L225 Difference]: With dead ends: 82 [2024-09-12 21:42:34,960 INFO L226 Difference]: Without dead ends: 56 [2024-09-12 21:42:34,960 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 98 SyntacticMatches, 11 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2024-09-12 21:42:34,961 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:34,961 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:34,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-09-12 21:42:34,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-09-12 21:42:34,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 40 states have (on average 1.05) internal successors, (42), 41 states have internal predecessors, (42), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 21:42:34,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2024-09-12 21:42:34,971 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 52 [2024-09-12 21:42:34,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:34,972 INFO L474 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2024-09-12 21:42:34,972 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 23 states have internal predecessors, (43), 13 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 21:42:34,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:34,972 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2024-09-12 21:42:34,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-09-12 21:42:34,976 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:34,976 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:34,993 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-12 21:42:35,180 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 21:42:35,181 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:35,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:35,181 INFO L85 PathProgramCache]: Analyzing trace with hash -556745096, now seen corresponding path program 10 times [2024-09-12 21:42:35,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:35,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295146032] [2024-09-12 21:42:35,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:35,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:35,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:35,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 21:42:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:35,343 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 21:42:35,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:35,346 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 21:42:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:35,349 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 21:42:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:35,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 21:42:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:35,353 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 25 proven. 46 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 21:42:35,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:35,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295146032] [2024-09-12 21:42:35,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295146032] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:35,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419124142] [2024-09-12 21:42:35,354 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:42:35,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:35,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:35,356 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:35,357 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 21:42:35,399 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:42:35,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:35,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 21:42:35,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:35,463 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 31 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 21:42:35,463 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:35,563 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 31 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 21:42:35,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419124142] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:35,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:35,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 14 [2024-09-12 21:42:35,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663155346] [2024-09-12 21:42:35,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:35,565 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 21:42:35,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:35,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 21:42:35,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-09-12 21:42:35,565 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 12 states have internal predecessors, (31), 7 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 21:42:35,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:35,629 INFO L93 Difference]: Finished difference Result 69 states and 71 transitions. [2024-09-12 21:42:35,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 21:42:35,629 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 12 states have internal predecessors, (31), 7 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 53 [2024-09-12 21:42:35,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:35,630 INFO L225 Difference]: With dead ends: 69 [2024-09-12 21:42:35,630 INFO L226 Difference]: Without dead ends: 67 [2024-09-12 21:42:35,631 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 109 SyntacticMatches, 12 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-09-12 21:42:35,632 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:35,632 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 64 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:35,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-09-12 21:42:35,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2024-09-12 21:42:35,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 45 states have (on average 1.0444444444444445) internal successors, (47), 46 states have internal predecessors, (47), 9 states have call successors, (9), 9 states have call predecessors, (9), 8 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 21:42:35,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2024-09-12 21:42:35,644 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 53 [2024-09-12 21:42:35,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:35,645 INFO L474 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2024-09-12 21:42:35,645 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 12 states have internal predecessors, (31), 7 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 21:42:35,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:35,645 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2024-09-12 21:42:35,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-09-12 21:42:35,647 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:35,647 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:35,663 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-12 21:42:35,848 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:35,849 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:35,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:35,849 INFO L85 PathProgramCache]: Analyzing trace with hash 483260331, now seen corresponding path program 11 times [2024-09-12 21:42:35,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:35,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795205764] [2024-09-12 21:42:35,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:35,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:36,053 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:36,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-09-12 21:42:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:36,058 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 21:42:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:36,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 21:42:36,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:36,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 21:42:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:36,066 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 21:42:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:36,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 21:42:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:36,072 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 53 proven. 37 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 21:42:36,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:36,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795205764] [2024-09-12 21:42:36,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795205764] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:36,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968954792] [2024-09-12 21:42:36,072 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:42:36,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:36,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:36,074 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:36,075 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 21:42:36,127 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-09-12 21:42:36,127 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:36,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 21:42:36,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:36,307 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 69 proven. 21 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 21:42:36,308 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:36,456 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 69 proven. 21 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 21:42:36,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968954792] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:36,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:36,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 26 [2024-09-12 21:42:36,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873574432] [2024-09-12 21:42:36,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:36,458 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-12 21:42:36,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:36,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-12 21:42:36,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2024-09-12 21:42:36,459 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand has 26 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 26 states have internal predecessors, (48), 15 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 21:42:36,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:36,548 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2024-09-12 21:42:36,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 21:42:36,548 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 26 states have internal predecessors, (48), 15 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 60 [2024-09-12 21:42:36,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:36,550 INFO L225 Difference]: With dead ends: 93 [2024-09-12 21:42:36,550 INFO L226 Difference]: Without dead ends: 64 [2024-09-12 21:42:36,551 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 113 SyntacticMatches, 13 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2024-09-12 21:42:36,552 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:36,552 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 153 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:36,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-09-12 21:42:36,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-09-12 21:42:36,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 46 states have (on average 1.0434782608695652) internal successors, (48), 47 states have internal predecessors, (48), 9 states have call successors, (9), 9 states have call predecessors, (9), 8 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 21:42:36,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2024-09-12 21:42:36,559 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 60 [2024-09-12 21:42:36,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:36,559 INFO L474 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2024-09-12 21:42:36,560 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 26 states have internal predecessors, (48), 15 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 21:42:36,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:36,560 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2024-09-12 21:42:36,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-09-12 21:42:36,561 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:36,561 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:36,577 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-12 21:42:36,764 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 21:42:36,765 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:36,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:36,765 INFO L85 PathProgramCache]: Analyzing trace with hash -77969225, now seen corresponding path program 12 times [2024-09-12 21:42:36,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:36,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853880620] [2024-09-12 21:42:36,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:36,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:36,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:36,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 21:42:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:36,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 21:42:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:36,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 21:42:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:36,945 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 21:42:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:36,950 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 21:42:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:36,953 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 21:42:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:36,961 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 33 proven. 64 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 21:42:36,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:36,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853880620] [2024-09-12 21:42:36,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853880620] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:36,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484960597] [2024-09-12 21:42:36,961 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:42:36,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:36,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:36,963 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:36,964 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 21:42:37,013 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-09-12 21:42:37,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:37,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-12 21:42:37,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:37,086 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 40 proven. 57 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 21:42:37,087 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:37,211 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 40 proven. 57 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 21:42:37,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484960597] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:37,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:37,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 15 [2024-09-12 21:42:37,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951883125] [2024-09-12 21:42:37,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:37,212 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 21:42:37,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:37,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 21:42:37,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-09-12 21:42:37,214 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand has 15 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 13 states have internal predecessors, (34), 8 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 21:42:37,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:37,296 INFO L93 Difference]: Finished difference Result 77 states and 79 transitions. [2024-09-12 21:42:37,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 21:42:37,296 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 13 states have internal predecessors, (34), 8 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 61 [2024-09-12 21:42:37,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:37,297 INFO L225 Difference]: With dead ends: 77 [2024-09-12 21:42:37,297 INFO L226 Difference]: Without dead ends: 75 [2024-09-12 21:42:37,298 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 126 SyntacticMatches, 14 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-09-12 21:42:37,298 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:37,299 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 100 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:37,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-09-12 21:42:37,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 71. [2024-09-12 21:42:37,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 51 states have (on average 1.0392156862745099) internal successors, (53), 52 states have internal predecessors, (53), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 21:42:37,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2024-09-12 21:42:37,307 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 61 [2024-09-12 21:42:37,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:37,307 INFO L474 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2024-09-12 21:42:37,308 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 13 states have internal predecessors, (34), 8 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 21:42:37,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:37,308 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2024-09-12 21:42:37,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-09-12 21:42:37,309 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:37,309 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:37,325 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-12 21:42:37,509 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 21:42:37,510 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:37,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:37,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1992243340, now seen corresponding path program 13 times [2024-09-12 21:42:37,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:37,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324852839] [2024-09-12 21:42:37,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:37,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:37,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:37,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-12 21:42:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:37,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 21:42:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:37,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 21:42:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:37,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 21:42:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:37,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 21:42:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:37,784 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 21:42:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:37,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 21:42:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:37,789 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 72 proven. 47 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 21:42:37,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:37,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324852839] [2024-09-12 21:42:37,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324852839] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:37,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597111604] [2024-09-12 21:42:37,790 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 21:42:37,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:37,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:37,792 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:37,794 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 21:42:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:37,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 21:42:37,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:38,067 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 91 proven. 28 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 21:42:38,067 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:38,258 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 91 proven. 28 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 21:42:38,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597111604] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:38,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:38,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 29 [2024-09-12 21:42:38,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885009897] [2024-09-12 21:42:38,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:38,259 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-09-12 21:42:38,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:38,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-09-12 21:42:38,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2024-09-12 21:42:38,260 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand has 29 states, 29 states have (on average 1.8275862068965518) internal successors, (53), 29 states have internal predecessors, (53), 17 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 21:42:38,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:38,367 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2024-09-12 21:42:38,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 21:42:38,368 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 1.8275862068965518) internal successors, (53), 29 states have internal predecessors, (53), 17 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Word has length 68 [2024-09-12 21:42:38,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:38,368 INFO L225 Difference]: With dead ends: 104 [2024-09-12 21:42:38,369 INFO L226 Difference]: Without dead ends: 72 [2024-09-12 21:42:38,369 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 128 SyntacticMatches, 15 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2024-09-12 21:42:38,370 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:38,370 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 210 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:38,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-09-12 21:42:38,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-09-12 21:42:38,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 52 states have (on average 1.0384615384615385) internal successors, (54), 53 states have internal predecessors, (54), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 21:42:38,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 73 transitions. [2024-09-12 21:42:38,384 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 73 transitions. Word has length 68 [2024-09-12 21:42:38,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:38,384 INFO L474 AbstractCegarLoop]: Abstraction has 72 states and 73 transitions. [2024-09-12 21:42:38,384 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.8275862068965518) internal successors, (53), 29 states have internal predecessors, (53), 17 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 21:42:38,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:38,384 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 73 transitions. [2024-09-12 21:42:38,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-09-12 21:42:38,385 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:38,385 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:38,401 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-12 21:42:38,585 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 21:42:38,585 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:38,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:38,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1549812328, now seen corresponding path program 14 times [2024-09-12 21:42:38,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:38,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430893318] [2024-09-12 21:42:38,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:38,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:38,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:38,762 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 21:42:38,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:38,765 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 21:42:38,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:38,767 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 21:42:38,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:38,770 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 21:42:38,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:38,772 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 21:42:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:38,774 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 21:42:38,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:38,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 21:42:38,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:38,779 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 42 proven. 85 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 21:42:38,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:38,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430893318] [2024-09-12 21:42:38,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430893318] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:38,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565306724] [2024-09-12 21:42:38,779 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:42:38,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:38,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:38,781 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:38,784 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 21:42:38,834 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:42:38,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:38,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 21:42:38,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:38,910 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 50 proven. 77 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 21:42:38,911 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:39,073 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 50 proven. 77 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 21:42:39,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565306724] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:39,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:39,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 16 [2024-09-12 21:42:39,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524129561] [2024-09-12 21:42:39,074 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:39,074 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 21:42:39,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:39,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 21:42:39,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-09-12 21:42:39,075 INFO L87 Difference]: Start difference. First operand 72 states and 73 transitions. Second operand has 16 states, 16 states have (on average 2.3125) internal successors, (37), 14 states have internal predecessors, (37), 9 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 21:42:39,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:39,151 INFO L93 Difference]: Finished difference Result 85 states and 87 transitions. [2024-09-12 21:42:39,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 21:42:39,152 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 14 states have internal predecessors, (37), 9 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 69 [2024-09-12 21:42:39,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:39,153 INFO L225 Difference]: With dead ends: 85 [2024-09-12 21:42:39,153 INFO L226 Difference]: Without dead ends: 83 [2024-09-12 21:42:39,153 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 141 SyntacticMatches, 18 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2024-09-12 21:42:39,154 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:39,154 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 80 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:39,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-09-12 21:42:39,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 79. [2024-09-12 21:42:39,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 57 states have (on average 1.0350877192982457) internal successors, (59), 58 states have internal predecessors, (59), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 21:42:39,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 80 transitions. [2024-09-12 21:42:39,161 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 80 transitions. Word has length 69 [2024-09-12 21:42:39,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:39,161 INFO L474 AbstractCegarLoop]: Abstraction has 79 states and 80 transitions. [2024-09-12 21:42:39,161 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 14 states have internal predecessors, (37), 9 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 21:42:39,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:39,162 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 80 transitions. [2024-09-12 21:42:39,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-09-12 21:42:39,162 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:39,163 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:39,180 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-09-12 21:42:39,363 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 21:42:39,363 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:39,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:39,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1008186507, now seen corresponding path program 15 times [2024-09-12 21:42:39,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:39,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410161726] [2024-09-12 21:42:39,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:39,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:39,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:39,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:39,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:39,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 21:42:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:39,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 21:42:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:39,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 21:42:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:39,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 21:42:39,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:39,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 21:42:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:39,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 21:42:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:39,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 21:42:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:39,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 21:42:39,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:39,633 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 94 proven. 58 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 21:42:39,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:39,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410161726] [2024-09-12 21:42:39,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410161726] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:39,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017783316] [2024-09-12 21:42:39,633 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:42:39,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:39,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:39,635 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:39,637 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 21:42:39,690 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-09-12 21:42:39,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:39,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-12 21:42:39,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:39,952 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 116 proven. 36 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 21:42:39,952 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:40,124 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 116 proven. 36 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 21:42:40,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017783316] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:40,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:40,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 32 [2024-09-12 21:42:40,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795801232] [2024-09-12 21:42:40,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:40,125 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-12 21:42:40,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:40,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-12 21:42:40,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=757, Unknown=0, NotChecked=0, Total=992 [2024-09-12 21:42:40,127 INFO L87 Difference]: Start difference. First operand 79 states and 80 transitions. Second operand has 32 states, 32 states have (on average 1.8125) internal successors, (58), 32 states have internal predecessors, (58), 19 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 21:42:40,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:40,229 INFO L93 Difference]: Finished difference Result 115 states and 125 transitions. [2024-09-12 21:42:40,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-12 21:42:40,229 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.8125) internal successors, (58), 32 states have internal predecessors, (58), 19 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Word has length 76 [2024-09-12 21:42:40,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:40,230 INFO L225 Difference]: With dead ends: 115 [2024-09-12 21:42:40,230 INFO L226 Difference]: Without dead ends: 80 [2024-09-12 21:42:40,230 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 143 SyntacticMatches, 17 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 584 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=235, Invalid=757, Unknown=0, NotChecked=0, Total=992 [2024-09-12 21:42:40,231 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:40,231 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 160 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:40,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-09-12 21:42:40,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-09-12 21:42:40,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 58 states have (on average 1.0344827586206897) internal successors, (60), 59 states have internal predecessors, (60), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 21:42:40,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 81 transitions. [2024-09-12 21:42:40,238 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 81 transitions. Word has length 76 [2024-09-12 21:42:40,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:40,238 INFO L474 AbstractCegarLoop]: Abstraction has 80 states and 81 transitions. [2024-09-12 21:42:40,238 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.8125) internal successors, (58), 32 states have internal predecessors, (58), 19 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 21:42:40,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:40,239 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 81 transitions. [2024-09-12 21:42:40,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-09-12 21:42:40,239 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:40,239 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:40,256 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-12 21:42:40,443 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:40,443 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:40,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:40,444 INFO L85 PathProgramCache]: Analyzing trace with hash 165178775, now seen corresponding path program 16 times [2024-09-12 21:42:40,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:40,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546472141] [2024-09-12 21:42:40,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:40,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:40,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:40,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 21:42:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:40,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 21:42:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:40,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 21:42:40,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:40,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 21:42:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:40,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 21:42:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:40,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 21:42:40,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:40,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 21:42:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:40,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 21:42:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:40,662 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 52 proven. 109 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 21:42:40,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:40,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546472141] [2024-09-12 21:42:40,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546472141] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:40,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50589147] [2024-09-12 21:42:40,663 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:42:40,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:40,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:40,665 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:40,666 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 21:42:40,715 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:42:40,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:40,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 21:42:40,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:40,787 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 61 proven. 100 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 21:42:40,787 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:40,931 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 61 proven. 100 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 21:42:40,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50589147] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:40,931 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:40,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 17 [2024-09-12 21:42:40,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161229058] [2024-09-12 21:42:40,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:40,932 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 21:42:40,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:40,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 21:42:40,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-09-12 21:42:40,932 INFO L87 Difference]: Start difference. First operand 80 states and 81 transitions. Second operand has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 15 states have internal predecessors, (40), 10 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 21:42:40,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:40,995 INFO L93 Difference]: Finished difference Result 93 states and 95 transitions. [2024-09-12 21:42:40,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 21:42:40,996 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 15 states have internal predecessors, (40), 10 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 77 [2024-09-12 21:42:40,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:40,997 INFO L225 Difference]: With dead ends: 93 [2024-09-12 21:42:40,997 INFO L226 Difference]: Without dead ends: 91 [2024-09-12 21:42:40,997 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 160 SyntacticMatches, 18 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2024-09-12 21:42:40,997 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:40,998 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 67 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:40,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-09-12 21:42:41,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 87. [2024-09-12 21:42:41,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 63 states have (on average 1.0317460317460319) internal successors, (65), 64 states have internal predecessors, (65), 12 states have call successors, (12), 12 states have call predecessors, (12), 11 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 21:42:41,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 88 transitions. [2024-09-12 21:42:41,004 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 88 transitions. Word has length 77 [2024-09-12 21:42:41,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:41,004 INFO L474 AbstractCegarLoop]: Abstraction has 87 states and 88 transitions. [2024-09-12 21:42:41,004 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 15 states have internal predecessors, (40), 10 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 21:42:41,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:41,005 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 88 transitions. [2024-09-12 21:42:41,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-09-12 21:42:41,005 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:41,006 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:41,021 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-09-12 21:42:41,209 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:41,210 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:41,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:41,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1305991084, now seen corresponding path program 17 times [2024-09-12 21:42:41,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:41,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508409890] [2024-09-12 21:42:41,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:41,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:41,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:41,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:41,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 21:42:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:41,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 21:42:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:41,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 21:42:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:41,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 21:42:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:41,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 21:42:41,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:41,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 21:42:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:41,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 21:42:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:41,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 21:42:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:41,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 21:42:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:41,523 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 119 proven. 70 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 21:42:41,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:41,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508409890] [2024-09-12 21:42:41,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508409890] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:41,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174790434] [2024-09-12 21:42:41,524 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:42:41,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:41,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:41,526 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:41,527 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 21:42:41,586 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2024-09-12 21:42:41,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:41,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 21:42:41,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:41,872 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 144 proven. 45 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 21:42:41,872 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:42,101 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 144 proven. 45 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 21:42:42,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174790434] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:42,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:42,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 35 [2024-09-12 21:42:42,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829606272] [2024-09-12 21:42:42,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:42,102 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-09-12 21:42:42,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:42,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-09-12 21:42:42,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 21:42:42,104 INFO L87 Difference]: Start difference. First operand 87 states and 88 transitions. Second operand has 35 states, 35 states have (on average 1.8) internal successors, (63), 35 states have internal predecessors, (63), 21 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 21:42:42,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:42,212 INFO L93 Difference]: Finished difference Result 126 states and 137 transitions. [2024-09-12 21:42:42,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-12 21:42:42,213 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.8) internal successors, (63), 35 states have internal predecessors, (63), 21 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 84 [2024-09-12 21:42:42,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:42,214 INFO L225 Difference]: With dead ends: 126 [2024-09-12 21:42:42,214 INFO L226 Difference]: Without dead ends: 88 [2024-09-12 21:42:42,215 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 158 SyntacticMatches, 19 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 21:42:42,215 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:42,215 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 209 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:42,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-09-12 21:42:42,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-09-12 21:42:42,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 64 states have (on average 1.03125) internal successors, (66), 65 states have internal predecessors, (66), 12 states have call successors, (12), 12 states have call predecessors, (12), 11 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 21:42:42,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 89 transitions. [2024-09-12 21:42:42,226 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 89 transitions. Word has length 84 [2024-09-12 21:42:42,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:42,226 INFO L474 AbstractCegarLoop]: Abstraction has 88 states and 89 transitions. [2024-09-12 21:42:42,226 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.8) internal successors, (63), 35 states have internal predecessors, (63), 21 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 21:42:42,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:42,226 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 89 transitions. [2024-09-12 21:42:42,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-09-12 21:42:42,228 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:42,228 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:42,245 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-09-12 21:42:42,432 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:42,433 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:42,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:42,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1023097672, now seen corresponding path program 18 times [2024-09-12 21:42:42,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:42,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725568271] [2024-09-12 21:42:42,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:42,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:42,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:42,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 21:42:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:42,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 21:42:42,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:42,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 21:42:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:42,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 21:42:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:42,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 21:42:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:42,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 21:42:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:42,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-09-12 21:42:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:42,664 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-09-12 21:42:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:42,665 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 21:42:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:42,668 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 63 proven. 136 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 21:42:42,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:42,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725568271] [2024-09-12 21:42:42,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725568271] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:42,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104392880] [2024-09-12 21:42:42,669 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:42:42,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:42,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:42,670 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:42,672 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 21:42:42,728 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-09-12 21:42:42,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:42,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-12 21:42:42,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:42,803 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 73 proven. 126 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 21:42:42,803 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:43,002 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 73 proven. 126 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 21:42:43,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104392880] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:43,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:43,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 18 [2024-09-12 21:42:43,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769989073] [2024-09-12 21:42:43,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:43,003 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 21:42:43,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:43,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 21:42:43,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-09-12 21:42:43,004 INFO L87 Difference]: Start difference. First operand 88 states and 89 transitions. Second operand has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 16 states have internal predecessors, (43), 11 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 21:42:43,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:43,086 INFO L93 Difference]: Finished difference Result 101 states and 103 transitions. [2024-09-12 21:42:43,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 21:42:43,086 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 16 states have internal predecessors, (43), 11 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 85 [2024-09-12 21:42:43,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:43,087 INFO L225 Difference]: With dead ends: 101 [2024-09-12 21:42:43,087 INFO L226 Difference]: Without dead ends: 99 [2024-09-12 21:42:43,088 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 177 SyntacticMatches, 20 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2024-09-12 21:42:43,088 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:43,088 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 82 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:43,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-09-12 21:42:43,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 95. [2024-09-12 21:42:43,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 69 states have (on average 1.0289855072463767) internal successors, (71), 70 states have internal predecessors, (71), 13 states have call successors, (13), 13 states have call predecessors, (13), 12 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 21:42:43,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 96 transitions. [2024-09-12 21:42:43,098 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 96 transitions. Word has length 85 [2024-09-12 21:42:43,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:43,098 INFO L474 AbstractCegarLoop]: Abstraction has 95 states and 96 transitions. [2024-09-12 21:42:43,099 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 16 states have internal predecessors, (43), 11 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 21:42:43,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:43,099 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 96 transitions. [2024-09-12 21:42:43,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-09-12 21:42:43,100 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:43,100 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:43,112 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-09-12 21:42:43,303 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-09-12 21:42:43,303 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:43,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:43,303 INFO L85 PathProgramCache]: Analyzing trace with hash 359819627, now seen corresponding path program 19 times [2024-09-12 21:42:43,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:43,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399211026] [2024-09-12 21:42:43,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:43,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:43,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:43,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 21:42:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:43,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 21:42:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:43,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 21:42:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:43,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 21:42:43,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:43,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 21:42:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:43,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 21:42:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:43,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-09-12 21:42:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:43,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-09-12 21:42:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:43,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 21:42:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:43,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 21:42:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:43,633 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 147 proven. 83 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 21:42:43,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:43,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399211026] [2024-09-12 21:42:43,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399211026] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:43,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915060792] [2024-09-12 21:42:43,633 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 21:42:43,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:43,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:43,635 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:43,637 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 21:42:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:43,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 21:42:43,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:43,977 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 175 proven. 55 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 21:42:43,977 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:44,227 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 175 proven. 55 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 21:42:44,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915060792] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:44,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:44,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 38 [2024-09-12 21:42:44,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187362522] [2024-09-12 21:42:44,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:44,228 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-09-12 21:42:44,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:44,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-09-12 21:42:44,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 21:42:44,229 INFO L87 Difference]: Start difference. First operand 95 states and 96 transitions. Second operand has 38 states, 38 states have (on average 1.7894736842105263) internal successors, (68), 38 states have internal predecessors, (68), 23 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 21:42:44,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:44,369 INFO L93 Difference]: Finished difference Result 137 states and 149 transitions. [2024-09-12 21:42:44,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-12 21:42:44,371 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 1.7894736842105263) internal successors, (68), 38 states have internal predecessors, (68), 23 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Word has length 92 [2024-09-12 21:42:44,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:44,372 INFO L225 Difference]: With dead ends: 137 [2024-09-12 21:42:44,372 INFO L226 Difference]: Without dead ends: 96 [2024-09-12 21:42:44,373 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 173 SyntacticMatches, 21 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 850 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 21:42:44,374 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:44,374 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 229 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:44,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-09-12 21:42:44,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-09-12 21:42:44,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 70 states have (on average 1.0285714285714285) internal successors, (72), 71 states have internal predecessors, (72), 13 states have call successors, (13), 13 states have call predecessors, (13), 12 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 21:42:44,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 97 transitions. [2024-09-12 21:42:44,381 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 97 transitions. Word has length 92 [2024-09-12 21:42:44,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:44,381 INFO L474 AbstractCegarLoop]: Abstraction has 96 states and 97 transitions. [2024-09-12 21:42:44,381 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 1.7894736842105263) internal successors, (68), 38 states have internal predecessors, (68), 23 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 21:42:44,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:44,382 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 97 transitions. [2024-09-12 21:42:44,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-09-12 21:42:44,382 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:44,382 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:44,400 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-09-12 21:42:44,586 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 21:42:44,586 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:44,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:44,587 INFO L85 PathProgramCache]: Analyzing trace with hash -325612937, now seen corresponding path program 20 times [2024-09-12 21:42:44,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:44,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467707865] [2024-09-12 21:42:44,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:44,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:44,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:44,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:44,832 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-09-12 21:42:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:44,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 21:42:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:44,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 21:42:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:44,837 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 21:42:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:44,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 21:42:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:44,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-09-12 21:42:44,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:44,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 21:42:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:44,843 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-09-12 21:42:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:44,845 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 21:42:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:44,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 21:42:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:44,849 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 75 proven. 166 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 21:42:44,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:44,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467707865] [2024-09-12 21:42:44,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467707865] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:44,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176789621] [2024-09-12 21:42:44,850 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:42:44,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:44,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:44,851 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:44,852 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 21:42:44,909 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:42:44,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:44,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 21:42:44,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:44,984 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 86 proven. 155 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 21:42:44,985 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:45,174 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 86 proven. 155 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 21:42:45,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176789621] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:45,174 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:45,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 19 [2024-09-12 21:42:45,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643368505] [2024-09-12 21:42:45,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:45,175 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-12 21:42:45,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:45,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-12 21:42:45,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2024-09-12 21:42:45,176 INFO L87 Difference]: Start difference. First operand 96 states and 97 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 17 states have internal predecessors, (46), 12 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 21:42:45,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:45,260 INFO L93 Difference]: Finished difference Result 109 states and 111 transitions. [2024-09-12 21:42:45,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 21:42:45,261 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 17 states have internal predecessors, (46), 12 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 93 [2024-09-12 21:42:45,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:45,262 INFO L225 Difference]: With dead ends: 109 [2024-09-12 21:42:45,262 INFO L226 Difference]: Without dead ends: 107 [2024-09-12 21:42:45,262 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 192 SyntacticMatches, 24 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2024-09-12 21:42:45,263 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:45,263 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 73 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:45,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-09-12 21:42:45,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 103. [2024-09-12 21:42:45,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 75 states have (on average 1.0266666666666666) internal successors, (77), 76 states have internal predecessors, (77), 14 states have call successors, (14), 14 states have call predecessors, (14), 13 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 21:42:45,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 104 transitions. [2024-09-12 21:42:45,273 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 104 transitions. Word has length 93 [2024-09-12 21:42:45,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:45,273 INFO L474 AbstractCegarLoop]: Abstraction has 103 states and 104 transitions. [2024-09-12 21:42:45,273 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 17 states have internal predecessors, (46), 12 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 21:42:45,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:45,274 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 104 transitions. [2024-09-12 21:42:45,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-09-12 21:42:45,274 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:45,275 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:45,289 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-09-12 21:42:45,478 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:45,478 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:45,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:45,479 INFO L85 PathProgramCache]: Analyzing trace with hash 740851404, now seen corresponding path program 21 times [2024-09-12 21:42:45,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:45,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126512990] [2024-09-12 21:42:45,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:45,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:45,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:45,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-09-12 21:42:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:45,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 21:42:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:45,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 21:42:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:45,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 21:42:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:45,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 21:42:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:45,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-09-12 21:42:45,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:45,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 21:42:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:45,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-09-12 21:42:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:45,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 21:42:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:45,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 21:42:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:45,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 21:42:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:45,830 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 178 proven. 97 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 21:42:45,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:45,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126512990] [2024-09-12 21:42:45,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126512990] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:45,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686246631] [2024-09-12 21:42:45,830 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:42:45,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:45,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:45,832 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:45,833 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 21:42:45,895 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-09-12 21:42:45,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:45,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-12 21:42:45,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:46,266 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 209 proven. 66 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 21:42:46,266 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:46,529 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 209 proven. 66 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 21:42:46,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686246631] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:46,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:46,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 41 [2024-09-12 21:42:46,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686052241] [2024-09-12 21:42:46,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:46,530 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-09-12 21:42:46,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:46,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-09-12 21:42:46,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=382, Invalid=1258, Unknown=0, NotChecked=0, Total=1640 [2024-09-12 21:42:46,532 INFO L87 Difference]: Start difference. First operand 103 states and 104 transitions. Second operand has 41 states, 41 states have (on average 1.7804878048780488) internal successors, (73), 41 states have internal predecessors, (73), 25 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 21:42:46,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:46,689 INFO L93 Difference]: Finished difference Result 148 states and 161 transitions. [2024-09-12 21:42:46,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-12 21:42:46,690 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 1.7804878048780488) internal successors, (73), 41 states have internal predecessors, (73), 25 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Word has length 100 [2024-09-12 21:42:46,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:46,691 INFO L225 Difference]: With dead ends: 148 [2024-09-12 21:42:46,691 INFO L226 Difference]: Without dead ends: 104 [2024-09-12 21:42:46,691 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 188 SyntacticMatches, 23 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1001 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=382, Invalid=1258, Unknown=0, NotChecked=0, Total=1640 [2024-09-12 21:42:46,692 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:46,692 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 244 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:46,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-09-12 21:42:46,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-09-12 21:42:46,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 76 states have (on average 1.0263157894736843) internal successors, (78), 77 states have internal predecessors, (78), 14 states have call successors, (14), 14 states have call predecessors, (14), 13 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 21:42:46,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 105 transitions. [2024-09-12 21:42:46,702 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 105 transitions. Word has length 100 [2024-09-12 21:42:46,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:46,702 INFO L474 AbstractCegarLoop]: Abstraction has 104 states and 105 transitions. [2024-09-12 21:42:46,703 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 1.7804878048780488) internal successors, (73), 41 states have internal predecessors, (73), 25 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 21:42:46,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:46,703 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 105 transitions. [2024-09-12 21:42:46,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-09-12 21:42:46,703 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:46,703 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:46,719 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-09-12 21:42:46,907 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 21:42:46,908 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:46,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:46,908 INFO L85 PathProgramCache]: Analyzing trace with hash -741223464, now seen corresponding path program 22 times [2024-09-12 21:42:46,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:46,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261291617] [2024-09-12 21:42:46,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:46,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:47,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:47,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:47,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 21:42:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:47,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 21:42:47,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:47,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 21:42:47,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:47,174 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 21:42:47,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:47,176 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 21:42:47,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:47,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 21:42:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:47,179 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 21:42:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:47,180 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 21:42:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:47,182 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 21:42:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:47,183 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 21:42:47,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:47,185 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 21:42:47,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:47,186 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 88 proven. 199 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 21:42:47,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:47,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261291617] [2024-09-12 21:42:47,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261291617] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:47,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435239585] [2024-09-12 21:42:47,187 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:42:47,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:47,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:47,189 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:47,197 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-09-12 21:42:47,257 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:42:47,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:47,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-09-12 21:42:47,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:47,338 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 100 proven. 187 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 21:42:47,339 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:47,548 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 100 proven. 187 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 21:42:47,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435239585] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:47,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:47,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 20 [2024-09-12 21:42:47,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176682932] [2024-09-12 21:42:47,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:47,549 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 21:42:47,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:47,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 21:42:47,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-09-12 21:42:47,549 INFO L87 Difference]: Start difference. First operand 104 states and 105 transitions. Second operand has 20 states, 20 states have (on average 2.45) internal successors, (49), 18 states have internal predecessors, (49), 13 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 21:42:47,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:47,636 INFO L93 Difference]: Finished difference Result 117 states and 119 transitions. [2024-09-12 21:42:47,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 21:42:47,637 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.45) internal successors, (49), 18 states have internal predecessors, (49), 13 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 101 [2024-09-12 21:42:47,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:47,638 INFO L225 Difference]: With dead ends: 117 [2024-09-12 21:42:47,638 INFO L226 Difference]: Without dead ends: 115 [2024-09-12 21:42:47,638 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 211 SyntacticMatches, 24 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2024-09-12 21:42:47,638 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:47,639 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 80 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:47,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-09-12 21:42:47,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 111. [2024-09-12 21:42:47,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 81 states have (on average 1.0246913580246915) internal successors, (83), 82 states have internal predecessors, (83), 15 states have call successors, (15), 15 states have call predecessors, (15), 14 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 21:42:47,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 112 transitions. [2024-09-12 21:42:47,646 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 112 transitions. Word has length 101 [2024-09-12 21:42:47,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:47,647 INFO L474 AbstractCegarLoop]: Abstraction has 111 states and 112 transitions. [2024-09-12 21:42:47,647 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.45) internal successors, (49), 18 states have internal predecessors, (49), 13 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 21:42:47,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:47,647 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 112 transitions. [2024-09-12 21:42:47,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-09-12 21:42:47,648 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:47,648 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:47,660 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-09-12 21:42:47,848 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 21:42:47,849 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:47,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:47,849 INFO L85 PathProgramCache]: Analyzing trace with hash 567023179, now seen corresponding path program 23 times [2024-09-12 21:42:47,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:47,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70146285] [2024-09-12 21:42:47,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:47,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:47,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:48,267 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:48,269 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-09-12 21:42:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:48,273 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 21:42:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:48,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 21:42:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:48,276 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 21:42:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:48,278 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 21:42:48,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:48,279 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 21:42:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:48,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 21:42:48,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:48,282 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 21:42:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:48,283 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 21:42:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:48,285 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 21:42:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:48,287 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 21:42:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:48,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 21:42:48,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:48,291 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 212 proven. 112 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 21:42:48,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:48,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70146285] [2024-09-12 21:42:48,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70146285] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:48,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080653327] [2024-09-12 21:42:48,291 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:42:48,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:48,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:48,293 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:48,294 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-09-12 21:42:48,357 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2024-09-12 21:42:48,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:48,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-12 21:42:48,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:48,788 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 246 proven. 78 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 21:42:48,788 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:49,109 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 246 proven. 78 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 21:42:49,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080653327] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:49,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:49,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 44 [2024-09-12 21:42:49,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641644866] [2024-09-12 21:42:49,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:49,110 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-09-12 21:42:49,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:49,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-09-12 21:42:49,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=439, Invalid=1453, Unknown=0, NotChecked=0, Total=1892 [2024-09-12 21:42:49,111 INFO L87 Difference]: Start difference. First operand 111 states and 112 transitions. Second operand has 44 states, 44 states have (on average 1.7727272727272727) internal successors, (78), 44 states have internal predecessors, (78), 27 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 21:42:49,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:49,256 INFO L93 Difference]: Finished difference Result 159 states and 173 transitions. [2024-09-12 21:42:49,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-09-12 21:42:49,257 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 1.7727272727272727) internal successors, (78), 44 states have internal predecessors, (78), 27 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Word has length 108 [2024-09-12 21:42:49,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:49,258 INFO L225 Difference]: With dead ends: 159 [2024-09-12 21:42:49,259 INFO L226 Difference]: Without dead ends: 112 [2024-09-12 21:42:49,259 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 203 SyntacticMatches, 25 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1164 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=439, Invalid=1453, Unknown=0, NotChecked=0, Total=1892 [2024-09-12 21:42:49,260 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:49,260 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 204 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:49,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-09-12 21:42:49,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-09-12 21:42:49,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 82 states have (on average 1.024390243902439) internal successors, (84), 83 states have internal predecessors, (84), 15 states have call successors, (15), 15 states have call predecessors, (15), 14 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 21:42:49,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 113 transitions. [2024-09-12 21:42:49,269 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 113 transitions. Word has length 108 [2024-09-12 21:42:49,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:49,269 INFO L474 AbstractCegarLoop]: Abstraction has 112 states and 113 transitions. [2024-09-12 21:42:49,269 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 1.7727272727272727) internal successors, (78), 44 states have internal predecessors, (78), 27 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 21:42:49,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:49,270 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 113 transitions. [2024-09-12 21:42:49,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-09-12 21:42:49,270 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:49,270 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:49,287 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-09-12 21:42:49,474 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-12 21:42:49,475 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:49,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:49,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1132093609, now seen corresponding path program 24 times [2024-09-12 21:42:49,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:49,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121625377] [2024-09-12 21:42:49,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:49,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:49,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:49,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:49,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:49,768 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 21:42:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:49,769 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 21:42:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:49,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 21:42:49,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:49,772 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 21:42:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:49,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 21:42:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:49,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 21:42:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:49,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 21:42:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:49,778 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 21:42:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:49,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 21:42:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:49,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 21:42:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:49,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 21:42:49,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:49,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 21:42:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:49,788 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 102 proven. 235 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 21:42:49,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:49,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121625377] [2024-09-12 21:42:49,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121625377] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:49,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119910343] [2024-09-12 21:42:49,789 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:42:49,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:49,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:49,791 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:49,793 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-09-12 21:42:49,859 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2024-09-12 21:42:49,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:49,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-09-12 21:42:49,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:49,948 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 115 proven. 222 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 21:42:49,949 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:50,200 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 115 proven. 222 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 21:42:50,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119910343] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:50,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:50,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 21 [2024-09-12 21:42:50,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9379825] [2024-09-12 21:42:50,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:50,201 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-12 21:42:50,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:50,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-12 21:42:50,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2024-09-12 21:42:50,203 INFO L87 Difference]: Start difference. First operand 112 states and 113 transitions. Second operand has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 19 states have internal predecessors, (52), 14 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 21:42:50,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:50,293 INFO L93 Difference]: Finished difference Result 125 states and 127 transitions. [2024-09-12 21:42:50,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 21:42:50,293 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 19 states have internal predecessors, (52), 14 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 109 [2024-09-12 21:42:50,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:50,294 INFO L225 Difference]: With dead ends: 125 [2024-09-12 21:42:50,294 INFO L226 Difference]: Without dead ends: 123 [2024-09-12 21:42:50,295 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 228 SyntacticMatches, 26 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2024-09-12 21:42:50,295 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:50,295 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 103 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:50,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-09-12 21:42:50,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 119. [2024-09-12 21:42:50,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 87 states have (on average 1.0229885057471264) internal successors, (89), 88 states have internal predecessors, (89), 16 states have call successors, (16), 16 states have call predecessors, (16), 15 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 21:42:50,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 120 transitions. [2024-09-12 21:42:50,313 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 120 transitions. Word has length 109 [2024-09-12 21:42:50,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:50,314 INFO L474 AbstractCegarLoop]: Abstraction has 119 states and 120 transitions. [2024-09-12 21:42:50,314 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 19 states have internal predecessors, (52), 14 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 21:42:50,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:50,314 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 120 transitions. [2024-09-12 21:42:50,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-09-12 21:42:50,315 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:50,315 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:50,331 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-09-12 21:42:50,515 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 21:42:50,515 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:50,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:50,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1325191700, now seen corresponding path program 25 times [2024-09-12 21:42:50,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:50,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458622456] [2024-09-12 21:42:50,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:50,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:50,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:50,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 21:42:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:50,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 21:42:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:50,971 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 21:42:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:50,973 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 21:42:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:50,975 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 21:42:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:50,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 21:42:50,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:50,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 21:42:50,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:50,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 21:42:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:50,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 21:42:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:50,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 21:42:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:50,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 21:42:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:50,987 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 21:42:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:50,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 21:42:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:50,991 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 249 proven. 128 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 21:42:50,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:50,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458622456] [2024-09-12 21:42:50,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458622456] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:50,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900382641] [2024-09-12 21:42:50,991 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 21:42:50,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:50,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:50,993 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:50,997 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-09-12 21:42:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:51,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-09-12 21:42:51,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:51,500 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 286 proven. 91 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 21:42:51,500 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:51,796 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 286 proven. 91 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 21:42:51,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900382641] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:51,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:51,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 47 [2024-09-12 21:42:51,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250922601] [2024-09-12 21:42:51,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:51,797 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-09-12 21:42:51,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:51,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-09-12 21:42:51,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=500, Invalid=1662, Unknown=0, NotChecked=0, Total=2162 [2024-09-12 21:42:51,798 INFO L87 Difference]: Start difference. First operand 119 states and 120 transitions. Second operand has 47 states, 47 states have (on average 1.7659574468085106) internal successors, (83), 47 states have internal predecessors, (83), 29 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 21:42:51,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:51,935 INFO L93 Difference]: Finished difference Result 170 states and 185 transitions. [2024-09-12 21:42:51,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-09-12 21:42:51,936 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 1.7659574468085106) internal successors, (83), 47 states have internal predecessors, (83), 29 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Word has length 116 [2024-09-12 21:42:51,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:51,938 INFO L225 Difference]: With dead ends: 170 [2024-09-12 21:42:51,938 INFO L226 Difference]: Without dead ends: 120 [2024-09-12 21:42:51,939 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 218 SyntacticMatches, 27 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1339 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=500, Invalid=1662, Unknown=0, NotChecked=0, Total=2162 [2024-09-12 21:42:51,939 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:51,939 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 229 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:51,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-09-12 21:42:51,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-09-12 21:42:51,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 88 states have (on average 1.0227272727272727) internal successors, (90), 89 states have internal predecessors, (90), 16 states have call successors, (16), 16 states have call predecessors, (16), 15 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 21:42:51,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 121 transitions. [2024-09-12 21:42:51,949 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 121 transitions. Word has length 116 [2024-09-12 21:42:51,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:51,950 INFO L474 AbstractCegarLoop]: Abstraction has 120 states and 121 transitions. [2024-09-12 21:42:51,950 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 1.7659574468085106) internal successors, (83), 47 states have internal predecessors, (83), 29 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 21:42:51,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:51,951 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 121 transitions. [2024-09-12 21:42:51,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-09-12 21:42:51,952 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:51,952 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:51,968 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-09-12 21:42:52,152 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:52,153 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:52,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:52,153 INFO L85 PathProgramCache]: Analyzing trace with hash 358148856, now seen corresponding path program 26 times [2024-09-12 21:42:52,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:52,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314917639] [2024-09-12 21:42:52,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:52,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:52,469 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:52,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:52,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 21:42:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:52,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 21:42:52,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:52,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 21:42:52,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:52,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 21:42:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:52,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 21:42:52,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:52,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 21:42:52,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:52,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 21:42:52,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:52,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 21:42:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:52,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 21:42:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:52,490 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 21:42:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:52,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 21:42:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:52,493 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 21:42:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:52,494 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 21:42:52,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:52,496 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 117 proven. 274 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 21:42:52,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:52,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314917639] [2024-09-12 21:42:52,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314917639] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:52,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271200242] [2024-09-12 21:42:52,497 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:42:52,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:52,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:52,499 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:52,501 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-09-12 21:42:52,577 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:42:52,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:52,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-09-12 21:42:52,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:52,676 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 131 proven. 260 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 21:42:52,676 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:52,960 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 131 proven. 260 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 21:42:52,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271200242] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:52,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:52,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 22 [2024-09-12 21:42:52,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629349061] [2024-09-12 21:42:52,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:52,961 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 21:42:52,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:52,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 21:42:52,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2024-09-12 21:42:52,970 INFO L87 Difference]: Start difference. First operand 120 states and 121 transitions. Second operand has 22 states, 22 states have (on average 2.5) internal successors, (55), 20 states have internal predecessors, (55), 15 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 21:42:53,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:53,079 INFO L93 Difference]: Finished difference Result 133 states and 135 transitions. [2024-09-12 21:42:53,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 21:42:53,079 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.5) internal successors, (55), 20 states have internal predecessors, (55), 15 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 117 [2024-09-12 21:42:53,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:53,080 INFO L225 Difference]: With dead ends: 133 [2024-09-12 21:42:53,080 INFO L226 Difference]: Without dead ends: 131 [2024-09-12 21:42:53,081 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 243 SyntacticMatches, 30 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2024-09-12 21:42:53,081 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:53,081 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 79 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:53,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-09-12 21:42:53,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 127. [2024-09-12 21:42:53,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 93 states have (on average 1.021505376344086) internal successors, (95), 94 states have internal predecessors, (95), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 21:42:53,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 128 transitions. [2024-09-12 21:42:53,091 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 128 transitions. Word has length 117 [2024-09-12 21:42:53,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:53,091 INFO L474 AbstractCegarLoop]: Abstraction has 127 states and 128 transitions. [2024-09-12 21:42:53,091 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.5) internal successors, (55), 20 states have internal predecessors, (55), 15 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 21:42:53,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:53,092 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 128 transitions. [2024-09-12 21:42:53,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-09-12 21:42:53,092 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:53,093 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:53,105 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-09-12 21:42:53,293 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 21:42:53,293 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:53,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:53,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1584219349, now seen corresponding path program 27 times [2024-09-12 21:42:53,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:53,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897162776] [2024-09-12 21:42:53,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:53,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:53,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:53,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:53,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 21:42:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:53,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 21:42:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:53,839 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 21:42:53,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:53,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 21:42:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:53,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 21:42:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:53,843 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 21:42:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:53,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 21:42:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:53,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 21:42:53,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:53,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 21:42:53,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:53,849 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 21:42:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:53,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 21:42:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:53,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 21:42:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:53,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 21:42:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:53,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 21:42:53,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:53,857 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 289 proven. 145 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 21:42:53,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:53,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897162776] [2024-09-12 21:42:53,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897162776] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:53,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563507419] [2024-09-12 21:42:53,857 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:42:53,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:53,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:53,859 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:53,861 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-09-12 21:42:53,936 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-09-12 21:42:53,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:53,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-09-12 21:42:53,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:54,423 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 329 proven. 105 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 21:42:54,423 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:54,779 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 329 proven. 105 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 21:42:54,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563507419] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:54,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:54,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 50 [2024-09-12 21:42:54,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665656420] [2024-09-12 21:42:54,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:54,780 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-09-12 21:42:54,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:54,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-09-12 21:42:54,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=565, Invalid=1885, Unknown=0, NotChecked=0, Total=2450 [2024-09-12 21:42:54,782 INFO L87 Difference]: Start difference. First operand 127 states and 128 transitions. Second operand has 50 states, 50 states have (on average 1.76) internal successors, (88), 50 states have internal predecessors, (88), 31 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-09-12 21:42:54,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:54,994 INFO L93 Difference]: Finished difference Result 181 states and 197 transitions. [2024-09-12 21:42:54,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-12 21:42:54,995 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 1.76) internal successors, (88), 50 states have internal predecessors, (88), 31 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Word has length 124 [2024-09-12 21:42:54,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:54,996 INFO L225 Difference]: With dead ends: 181 [2024-09-12 21:42:54,996 INFO L226 Difference]: Without dead ends: 128 [2024-09-12 21:42:54,997 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 233 SyntacticMatches, 29 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1526 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=565, Invalid=1885, Unknown=0, NotChecked=0, Total=2450 [2024-09-12 21:42:54,998 INFO L434 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:54,998 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 410 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:42:54,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-09-12 21:42:55,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2024-09-12 21:42:55,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 94 states have (on average 1.0212765957446808) internal successors, (96), 95 states have internal predecessors, (96), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 21:42:55,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 129 transitions. [2024-09-12 21:42:55,008 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 129 transitions. Word has length 124 [2024-09-12 21:42:55,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:55,008 INFO L474 AbstractCegarLoop]: Abstraction has 128 states and 129 transitions. [2024-09-12 21:42:55,008 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 1.76) internal successors, (88), 50 states have internal predecessors, (88), 31 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-09-12 21:42:55,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:55,009 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 129 transitions. [2024-09-12 21:42:55,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-09-12 21:42:55,009 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:55,009 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:55,027 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-09-12 21:42:55,210 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:55,210 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:55,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:55,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1511042103, now seen corresponding path program 28 times [2024-09-12 21:42:55,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:55,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681256164] [2024-09-12 21:42:55,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:55,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:55,517 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:55,519 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 21:42:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:55,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 21:42:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:55,522 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 21:42:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:55,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 21:42:55,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:55,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 21:42:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:55,526 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 21:42:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:55,527 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 21:42:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:55,529 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 21:42:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:55,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 21:42:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:55,531 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 21:42:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:55,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 21:42:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:55,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 21:42:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:55,536 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 21:42:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:55,537 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 21:42:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:55,539 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 133 proven. 316 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 21:42:55,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:55,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681256164] [2024-09-12 21:42:55,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681256164] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:55,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888170281] [2024-09-12 21:42:55,539 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:42:55,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:55,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:55,542 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:55,544 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-09-12 21:42:55,613 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:42:55,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:55,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-12 21:42:55,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:55,690 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 148 proven. 301 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 21:42:55,690 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:55,971 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 148 proven. 301 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 21:42:55,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888170281] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:55,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:55,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 23 [2024-09-12 21:42:55,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488985041] [2024-09-12 21:42:55,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:55,972 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-12 21:42:55,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:55,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-12 21:42:55,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=340, Unknown=0, NotChecked=0, Total=506 [2024-09-12 21:42:55,972 INFO L87 Difference]: Start difference. First operand 128 states and 129 transitions. Second operand has 23 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 21 states have internal predecessors, (58), 16 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 21:42:56,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:56,074 INFO L93 Difference]: Finished difference Result 141 states and 143 transitions. [2024-09-12 21:42:56,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-12 21:42:56,074 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 21 states have internal predecessors, (58), 16 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 125 [2024-09-12 21:42:56,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:56,075 INFO L225 Difference]: With dead ends: 141 [2024-09-12 21:42:56,075 INFO L226 Difference]: Without dead ends: 139 [2024-09-12 21:42:56,076 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 260 SyntacticMatches, 32 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2024-09-12 21:42:56,076 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:56,076 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 87 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:56,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-09-12 21:42:56,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 135. [2024-09-12 21:42:56,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 99 states have (on average 1.02020202020202) internal successors, (101), 100 states have internal predecessors, (101), 18 states have call successors, (18), 18 states have call predecessors, (18), 17 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 21:42:56,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 136 transitions. [2024-09-12 21:42:56,086 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 136 transitions. Word has length 125 [2024-09-12 21:42:56,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:56,087 INFO L474 AbstractCegarLoop]: Abstraction has 135 states and 136 transitions. [2024-09-12 21:42:56,087 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 21 states have internal predecessors, (58), 16 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 21:42:56,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:56,087 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 136 transitions. [2024-09-12 21:42:56,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-09-12 21:42:56,088 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:56,088 INFO L216 NwaCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:56,102 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-09-12 21:42:56,288 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:56,289 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:56,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:56,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1144644876, now seen corresponding path program 29 times [2024-09-12 21:42:56,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:56,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324523881] [2024-09-12 21:42:56,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:56,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:56,774 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:56,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 21:42:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:56,778 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 21:42:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:56,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 21:42:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:56,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 21:42:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:56,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 21:42:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:56,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 21:42:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:56,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 21:42:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:56,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 21:42:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:56,788 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 21:42:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:56,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 21:42:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:56,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 21:42:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:56,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 21:42:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:56,794 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 21:42:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:56,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 21:42:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:56,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 21:42:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:56,798 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 332 proven. 163 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 21:42:56,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:56,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324523881] [2024-09-12 21:42:56,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324523881] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:56,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366540765] [2024-09-12 21:42:56,799 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:42:56,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:56,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:56,801 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:56,802 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-09-12 21:42:56,864 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2024-09-12 21:42:56,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:56,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-09-12 21:42:56,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:57,333 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 375 proven. 120 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 21:42:57,333 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:57,708 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 375 proven. 120 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 21:42:57,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366540765] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:57,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:57,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 53 [2024-09-12 21:42:57,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228360453] [2024-09-12 21:42:57,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:57,709 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-09-12 21:42:57,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:57,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-09-12 21:42:57,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=634, Invalid=2122, Unknown=0, NotChecked=0, Total=2756 [2024-09-12 21:42:57,710 INFO L87 Difference]: Start difference. First operand 135 states and 136 transitions. Second operand has 53 states, 53 states have (on average 1.7547169811320755) internal successors, (93), 53 states have internal predecessors, (93), 33 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-09-12 21:42:57,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:57,915 INFO L93 Difference]: Finished difference Result 192 states and 209 transitions. [2024-09-12 21:42:57,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-09-12 21:42:57,915 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 1.7547169811320755) internal successors, (93), 53 states have internal predecessors, (93), 33 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Word has length 132 [2024-09-12 21:42:57,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:57,917 INFO L225 Difference]: With dead ends: 192 [2024-09-12 21:42:57,917 INFO L226 Difference]: Without dead ends: 136 [2024-09-12 21:42:57,918 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 248 SyntacticMatches, 31 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1725 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=634, Invalid=2122, Unknown=0, NotChecked=0, Total=2756 [2024-09-12 21:42:57,918 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:57,918 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 476 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:42:57,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-09-12 21:42:57,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2024-09-12 21:42:57,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 100 states have (on average 1.02) internal successors, (102), 101 states have internal predecessors, (102), 18 states have call successors, (18), 18 states have call predecessors, (18), 17 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 21:42:57,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 137 transitions. [2024-09-12 21:42:57,929 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 137 transitions. Word has length 132 [2024-09-12 21:42:57,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:57,929 INFO L474 AbstractCegarLoop]: Abstraction has 136 states and 137 transitions. [2024-09-12 21:42:57,929 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 1.7547169811320755) internal successors, (93), 53 states have internal predecessors, (93), 33 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-09-12 21:42:57,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:57,930 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 137 transitions. [2024-09-12 21:42:57,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-09-12 21:42:57,930 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:57,931 INFO L216 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:57,950 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-09-12 21:42:58,131 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-09-12 21:42:58,132 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:58,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:58,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1888744936, now seen corresponding path program 30 times [2024-09-12 21:42:58,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:58,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962575600] [2024-09-12 21:42:58,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:58,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:58,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:58,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:58,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 21:42:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:58,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 21:42:58,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:58,493 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 21:42:58,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:58,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 21:42:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:58,496 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 21:42:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:58,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 21:42:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:58,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 21:42:58,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:58,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 21:42:58,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:58,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 21:42:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:58,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 21:42:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:58,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-09-12 21:42:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:58,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 21:42:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:58,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 21:42:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:58,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 21:42:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:58,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 21:42:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:58,511 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 150 proven. 361 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 21:42:58,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:58,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962575600] [2024-09-12 21:42:58,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962575600] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:58,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432200022] [2024-09-12 21:42:58,512 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:42:58,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:58,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:58,514 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:58,530 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-09-12 21:42:58,591 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2024-09-12 21:42:58,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:42:58,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-09-12 21:42:58,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:42:58,682 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 166 proven. 345 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 21:42:58,682 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:42:58,956 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 166 proven. 345 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 21:42:58,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432200022] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:42:58,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:42:58,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 24 [2024-09-12 21:42:58,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089305648] [2024-09-12 21:42:58,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:42:58,957 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 21:42:58,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:42:58,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 21:42:58,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=368, Unknown=0, NotChecked=0, Total=552 [2024-09-12 21:42:58,958 INFO L87 Difference]: Start difference. First operand 136 states and 137 transitions. Second operand has 24 states, 24 states have (on average 2.5416666666666665) internal successors, (61), 22 states have internal predecessors, (61), 17 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 21:42:59,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:42:59,076 INFO L93 Difference]: Finished difference Result 149 states and 151 transitions. [2024-09-12 21:42:59,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 21:42:59,077 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.5416666666666665) internal successors, (61), 22 states have internal predecessors, (61), 17 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Word has length 133 [2024-09-12 21:42:59,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:42:59,078 INFO L225 Difference]: With dead ends: 149 [2024-09-12 21:42:59,078 INFO L226 Difference]: Without dead ends: 147 [2024-09-12 21:42:59,078 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 279 SyntacticMatches, 32 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=190, Invalid=410, Unknown=0, NotChecked=0, Total=600 [2024-09-12 21:42:59,079 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:42:59,079 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 74 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:42:59,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-09-12 21:42:59,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 143. [2024-09-12 21:42:59,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 105 states have (on average 1.019047619047619) internal successors, (107), 106 states have internal predecessors, (107), 19 states have call successors, (19), 19 states have call predecessors, (19), 18 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 21:42:59,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 144 transitions. [2024-09-12 21:42:59,092 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 144 transitions. Word has length 133 [2024-09-12 21:42:59,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:42:59,092 INFO L474 AbstractCegarLoop]: Abstraction has 143 states and 144 transitions. [2024-09-12 21:42:59,092 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.5416666666666665) internal successors, (61), 22 states have internal predecessors, (61), 17 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 21:42:59,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:59,093 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 144 transitions. [2024-09-12 21:42:59,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-09-12 21:42:59,094 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:42:59,094 INFO L216 NwaCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:42:59,112 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-09-12 21:42:59,294 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,32 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:59,295 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:42:59,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:42:59,295 INFO L85 PathProgramCache]: Analyzing trace with hash 2092193803, now seen corresponding path program 31 times [2024-09-12 21:42:59,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:42:59,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604262544] [2024-09-12 21:42:59,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:42:59,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:42:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:59,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:42:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:59,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 21:42:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:59,854 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 21:42:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:59,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 21:42:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:59,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 21:42:59,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:59,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 21:42:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:59,858 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 21:42:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:59,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 21:42:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:59,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 21:42:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:59,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 21:42:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:59,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 21:42:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:59,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-09-12 21:42:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:59,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 21:42:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:59,868 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 21:42:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:59,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 21:42:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:59,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 21:42:59,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:59,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 21:42:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:59,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 378 proven. 182 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 21:42:59,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:42:59,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604262544] [2024-09-12 21:42:59,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604262544] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:42:59,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528934011] [2024-09-12 21:42:59,884 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 21:42:59,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:42:59,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:42:59,885 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:42:59,887 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-09-12 21:42:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:42:59,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-09-12 21:42:59,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:00,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 424 proven. 136 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 21:43:00,499 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:00,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 424 proven. 136 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 21:43:00,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528934011] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:00,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:00,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 56 [2024-09-12 21:43:00,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542947484] [2024-09-12 21:43:00,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:00,980 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-09-12 21:43:00,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:00,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-09-12 21:43:00,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=707, Invalid=2373, Unknown=0, NotChecked=0, Total=3080 [2024-09-12 21:43:00,982 INFO L87 Difference]: Start difference. First operand 143 states and 144 transitions. Second operand has 56 states, 56 states have (on average 1.75) internal successors, (98), 56 states have internal predecessors, (98), 35 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 21:43:01,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:01,217 INFO L93 Difference]: Finished difference Result 203 states and 221 transitions. [2024-09-12 21:43:01,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-09-12 21:43:01,217 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 1.75) internal successors, (98), 56 states have internal predecessors, (98), 35 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Word has length 140 [2024-09-12 21:43:01,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:01,218 INFO L225 Difference]: With dead ends: 203 [2024-09-12 21:43:01,219 INFO L226 Difference]: Without dead ends: 144 [2024-09-12 21:43:01,219 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 263 SyntacticMatches, 33 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1936 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=707, Invalid=2373, Unknown=0, NotChecked=0, Total=3080 [2024-09-12 21:43:01,220 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:01,220 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 419 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:43:01,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-09-12 21:43:01,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-09-12 21:43:01,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 106 states have (on average 1.0188679245283019) internal successors, (108), 107 states have internal predecessors, (108), 19 states have call successors, (19), 19 states have call predecessors, (19), 18 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 21:43:01,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 145 transitions. [2024-09-12 21:43:01,234 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 145 transitions. Word has length 140 [2024-09-12 21:43:01,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:01,234 INFO L474 AbstractCegarLoop]: Abstraction has 144 states and 145 transitions. [2024-09-12 21:43:01,234 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 1.75) internal successors, (98), 56 states have internal predecessors, (98), 35 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 21:43:01,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:01,235 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 145 transitions. [2024-09-12 21:43:01,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-09-12 21:43:01,235 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:01,236 INFO L216 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:01,252 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-09-12 21:43:01,439 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-09-12 21:43:01,440 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:01,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:01,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1294381335, now seen corresponding path program 32 times [2024-09-12 21:43:01,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:01,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018117516] [2024-09-12 21:43:01,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:01,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:01,823 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:01,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 21:43:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:01,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 21:43:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:01,827 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 21:43:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:01,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 21:43:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:01,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 21:43:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:01,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-09-12 21:43:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:01,832 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-09-12 21:43:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:01,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 21:43:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:01,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 21:43:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:01,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 21:43:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:01,837 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 21:43:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:01,839 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 21:43:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:01,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 21:43:01,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:01,841 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-09-12 21:43:01,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:01,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 21:43:01,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:01,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 21:43:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:01,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 168 proven. 409 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 21:43:01,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:01,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018117516] [2024-09-12 21:43:01,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018117516] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:01,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137891576] [2024-09-12 21:43:01,846 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:43:01,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:01,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:01,848 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:01,850 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-09-12 21:43:01,921 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:43:01,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:43:01,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-09-12 21:43:01,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:02,030 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 185 proven. 392 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 21:43:02,031 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:02,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 185 proven. 392 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 21:43:02,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137891576] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:02,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:02,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 25 [2024-09-12 21:43:02,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943008649] [2024-09-12 21:43:02,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:02,360 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-12 21:43:02,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:02,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-12 21:43:02,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=397, Unknown=0, NotChecked=0, Total=600 [2024-09-12 21:43:02,361 INFO L87 Difference]: Start difference. First operand 144 states and 145 transitions. Second operand has 25 states, 25 states have (on average 2.56) internal successors, (64), 23 states have internal predecessors, (64), 18 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 21:43:02,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:02,456 INFO L93 Difference]: Finished difference Result 157 states and 159 transitions. [2024-09-12 21:43:02,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-12 21:43:02,457 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.56) internal successors, (64), 23 states have internal predecessors, (64), 18 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Word has length 141 [2024-09-12 21:43:02,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:02,458 INFO L225 Difference]: With dead ends: 157 [2024-09-12 21:43:02,458 INFO L226 Difference]: Without dead ends: 155 [2024-09-12 21:43:02,458 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 294 SyntacticMatches, 36 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=209, Invalid=441, Unknown=0, NotChecked=0, Total=650 [2024-09-12 21:43:02,459 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:02,459 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 68 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:43:02,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-09-12 21:43:02,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 151. [2024-09-12 21:43:02,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 111 states have (on average 1.018018018018018) internal successors, (113), 112 states have internal predecessors, (113), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 21:43:02,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 152 transitions. [2024-09-12 21:43:02,470 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 152 transitions. Word has length 141 [2024-09-12 21:43:02,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:02,471 INFO L474 AbstractCegarLoop]: Abstraction has 151 states and 152 transitions. [2024-09-12 21:43:02,471 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.56) internal successors, (64), 23 states have internal predecessors, (64), 18 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 21:43:02,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:02,471 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 152 transitions. [2024-09-12 21:43:02,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-09-12 21:43:02,472 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:02,472 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:02,487 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-09-12 21:43:02,672 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-12 21:43:02,673 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:02,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:02,673 INFO L85 PathProgramCache]: Analyzing trace with hash 907977772, now seen corresponding path program 33 times [2024-09-12 21:43:02,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:02,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522660449] [2024-09-12 21:43:02,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:02,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:03,306 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:03,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:03,308 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 21:43:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:03,309 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 21:43:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:03,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 21:43:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:03,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 21:43:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:03,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 21:43:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:03,314 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-09-12 21:43:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:03,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-09-12 21:43:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:03,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 21:43:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:03,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 21:43:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:03,320 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 21:43:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:03,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 21:43:03,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:03,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 21:43:03,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:03,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 21:43:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:03,324 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-09-12 21:43:03,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:03,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 21:43:03,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:03,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 21:43:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:03,329 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 21:43:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:03,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1173 backedges. 427 proven. 202 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 21:43:03,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:03,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522660449] [2024-09-12 21:43:03,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522660449] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:03,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536273022] [2024-09-12 21:43:03,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:43:03,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:03,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:03,333 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:03,335 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-09-12 21:43:03,403 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2024-09-12 21:43:03,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:43:03,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-09-12 21:43:03,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:03,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1173 backedges. 476 proven. 153 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 21:43:03,951 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:04,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1173 backedges. 476 proven. 153 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 21:43:04,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536273022] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:04,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:04,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39, 39] total 59 [2024-09-12 21:43:04,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148396556] [2024-09-12 21:43:04,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:04,415 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2024-09-12 21:43:04,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:04,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2024-09-12 21:43:04,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=784, Invalid=2638, Unknown=0, NotChecked=0, Total=3422 [2024-09-12 21:43:04,417 INFO L87 Difference]: Start difference. First operand 151 states and 152 transitions. Second operand has 59 states, 59 states have (on average 1.7457627118644068) internal successors, (103), 59 states have internal predecessors, (103), 37 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-09-12 21:43:04,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:04,621 INFO L93 Difference]: Finished difference Result 214 states and 233 transitions. [2024-09-12 21:43:04,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-09-12 21:43:04,621 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 1.7457627118644068) internal successors, (103), 59 states have internal predecessors, (103), 37 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Word has length 148 [2024-09-12 21:43:04,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:04,623 INFO L225 Difference]: With dead ends: 214 [2024-09-12 21:43:04,623 INFO L226 Difference]: Without dead ends: 152 [2024-09-12 21:43:04,624 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 278 SyntacticMatches, 35 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2159 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=784, Invalid=2638, Unknown=0, NotChecked=0, Total=3422 [2024-09-12 21:43:04,624 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:04,624 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:43:04,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-09-12 21:43:04,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-09-12 21:43:04,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 112 states have (on average 1.0178571428571428) internal successors, (114), 113 states have internal predecessors, (114), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 21:43:04,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 153 transitions. [2024-09-12 21:43:04,636 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 153 transitions. Word has length 148 [2024-09-12 21:43:04,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:04,636 INFO L474 AbstractCegarLoop]: Abstraction has 152 states and 153 transitions. [2024-09-12 21:43:04,636 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 1.7457627118644068) internal successors, (103), 59 states have internal predecessors, (103), 37 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-09-12 21:43:04,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:04,637 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 153 transitions. [2024-09-12 21:43:04,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-09-12 21:43:04,638 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:04,638 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:04,655 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-09-12 21:43:04,839 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-12 21:43:04,839 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:04,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:04,839 INFO L85 PathProgramCache]: Analyzing trace with hash 844968248, now seen corresponding path program 34 times [2024-09-12 21:43:04,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:04,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864110050] [2024-09-12 21:43:04,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:04,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:04,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:05,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:05,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 21:43:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:05,231 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 21:43:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:05,232 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 21:43:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:05,233 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 21:43:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:05,234 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-09-12 21:43:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:05,236 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 21:43:05,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:05,237 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-09-12 21:43:05,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:05,238 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 21:43:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:05,241 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 21:43:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:05,242 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 21:43:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:05,244 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 21:43:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:05,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 21:43:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:05,248 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 21:43:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:05,249 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 21:43:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:05,251 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 21:43:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:05,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 21:43:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:05,253 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 21:43:05,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:05,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1191 backedges. 187 proven. 460 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 21:43:05,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:05,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864110050] [2024-09-12 21:43:05,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864110050] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:05,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983428985] [2024-09-12 21:43:05,254 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:43:05,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:05,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:05,255 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:05,256 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-09-12 21:43:05,316 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:43:05,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:43:05,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-09-12 21:43:05,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:05,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1191 backedges. 205 proven. 442 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 21:43:05,413 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:05,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1191 backedges. 205 proven. 442 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 21:43:05,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983428985] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:05,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:05,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 26 [2024-09-12 21:43:05,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724826214] [2024-09-12 21:43:05,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:05,802 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-12 21:43:05,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:05,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-12 21:43:05,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=427, Unknown=0, NotChecked=0, Total=650 [2024-09-12 21:43:05,803 INFO L87 Difference]: Start difference. First operand 152 states and 153 transitions. Second operand has 26 states, 26 states have (on average 2.576923076923077) internal successors, (67), 24 states have internal predecessors, (67), 19 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 21:43:05,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:05,906 INFO L93 Difference]: Finished difference Result 165 states and 167 transitions. [2024-09-12 21:43:05,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-12 21:43:05,906 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.576923076923077) internal successors, (67), 24 states have internal predecessors, (67), 19 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Word has length 149 [2024-09-12 21:43:05,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:05,908 INFO L225 Difference]: With dead ends: 165 [2024-09-12 21:43:05,908 INFO L226 Difference]: Without dead ends: 163 [2024-09-12 21:43:05,908 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 313 SyntacticMatches, 36 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=473, Unknown=0, NotChecked=0, Total=702 [2024-09-12 21:43:05,908 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:05,909 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 86 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:43:05,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-09-12 21:43:05,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 159. [2024-09-12 21:43:05,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 117 states have (on average 1.017094017094017) internal successors, (119), 118 states have internal predecessors, (119), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 21:43:05,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 160 transitions. [2024-09-12 21:43:05,921 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 160 transitions. Word has length 149 [2024-09-12 21:43:05,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:05,921 INFO L474 AbstractCegarLoop]: Abstraction has 159 states and 160 transitions. [2024-09-12 21:43:05,921 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.576923076923077) internal successors, (67), 24 states have internal predecessors, (67), 19 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 21:43:05,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:05,922 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 160 transitions. [2024-09-12 21:43:05,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-09-12 21:43:05,922 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:05,922 INFO L216 NwaCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:05,939 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-09-12 21:43:06,123 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-09-12 21:43:06,123 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:06,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:06,124 INFO L85 PathProgramCache]: Analyzing trace with hash 580840683, now seen corresponding path program 35 times [2024-09-12 21:43:06,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:06,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319241737] [2024-09-12 21:43:06,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:06,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:06,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:06,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 21:43:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:06,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 21:43:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:06,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 21:43:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:06,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 21:43:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:06,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-09-12 21:43:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:06,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 21:43:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:06,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-09-12 21:43:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:06,823 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 21:43:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:06,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 21:43:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:06,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 21:43:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:06,827 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 21:43:06,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:06,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 21:43:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:06,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 21:43:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:06,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 21:43:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:06,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 21:43:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:06,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 21:43:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:06,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 21:43:06,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:06,837 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 21:43:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:06,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 479 proven. 223 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 21:43:06,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:06,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319241737] [2024-09-12 21:43:06,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319241737] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:06,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067142482] [2024-09-12 21:43:06,839 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:43:06,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:06,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:06,842 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:06,844 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-09-12 21:43:06,935 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2024-09-12 21:43:06,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:43:06,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-09-12 21:43:06,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:07,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 531 proven. 171 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 21:43:07,573 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:08,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 531 proven. 171 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 21:43:08,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067142482] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:08,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:08,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41, 41] total 62 [2024-09-12 21:43:08,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890538191] [2024-09-12 21:43:08,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:08,064 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-09-12 21:43:08,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:08,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-09-12 21:43:08,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=865, Invalid=2917, Unknown=0, NotChecked=0, Total=3782 [2024-09-12 21:43:08,066 INFO L87 Difference]: Start difference. First operand 159 states and 160 transitions. Second operand has 62 states, 62 states have (on average 1.7419354838709677) internal successors, (108), 62 states have internal predecessors, (108), 39 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-09-12 21:43:08,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:08,295 INFO L93 Difference]: Finished difference Result 225 states and 245 transitions. [2024-09-12 21:43:08,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-09-12 21:43:08,296 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 1.7419354838709677) internal successors, (108), 62 states have internal predecessors, (108), 39 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Word has length 156 [2024-09-12 21:43:08,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:08,298 INFO L225 Difference]: With dead ends: 225 [2024-09-12 21:43:08,298 INFO L226 Difference]: Without dead ends: 160 [2024-09-12 21:43:08,299 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 293 SyntacticMatches, 37 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2394 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=865, Invalid=2917, Unknown=0, NotChecked=0, Total=3782 [2024-09-12 21:43:08,299 INFO L434 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:08,299 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 282 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:43:08,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-09-12 21:43:08,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-09-12 21:43:08,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 118 states have (on average 1.0169491525423728) internal successors, (120), 119 states have internal predecessors, (120), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 21:43:08,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 161 transitions. [2024-09-12 21:43:08,313 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 161 transitions. Word has length 156 [2024-09-12 21:43:08,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:08,314 INFO L474 AbstractCegarLoop]: Abstraction has 160 states and 161 transitions. [2024-09-12 21:43:08,314 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 1.7419354838709677) internal successors, (108), 62 states have internal predecessors, (108), 39 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-09-12 21:43:08,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:08,314 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 161 transitions. [2024-09-12 21:43:08,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-09-12 21:43:08,315 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:08,315 INFO L216 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:08,333 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-09-12 21:43:08,516 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-09-12 21:43:08,516 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:08,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:08,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1523208713, now seen corresponding path program 36 times [2024-09-12 21:43:08,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:08,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635416443] [2024-09-12 21:43:08,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:08,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:08,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:08,934 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 21:43:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:08,935 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 21:43:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:08,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 21:43:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:08,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 21:43:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:08,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 21:43:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:08,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 21:43:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:08,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 21:43:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:08,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 21:43:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:08,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 21:43:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:08,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 21:43:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:08,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 21:43:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:08,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 21:43:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:08,945 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 21:43:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:08,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 21:43:08,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:08,947 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 21:43:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:08,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 21:43:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:08,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 21:43:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:08,949 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 21:43:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:08,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 207 proven. 514 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 21:43:08,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:08,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635416443] [2024-09-12 21:43:08,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635416443] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:08,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028320523] [2024-09-12 21:43:08,951 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:43:08,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:08,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:08,952 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:08,953 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-09-12 21:43:09,023 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2024-09-12 21:43:09,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:43:09,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-09-12 21:43:09,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:09,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 226 proven. 495 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 21:43:09,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:09,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 226 proven. 495 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 21:43:09,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028320523] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:09,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:09,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 27 [2024-09-12 21:43:09,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115512432] [2024-09-12 21:43:09,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:09,478 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-12 21:43:09,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:09,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-12 21:43:09,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=458, Unknown=0, NotChecked=0, Total=702 [2024-09-12 21:43:09,479 INFO L87 Difference]: Start difference. First operand 160 states and 161 transitions. Second operand has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 25 states have internal predecessors, (70), 20 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 21:43:09,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:09,586 INFO L93 Difference]: Finished difference Result 173 states and 175 transitions. [2024-09-12 21:43:09,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-12 21:43:09,587 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 25 states have internal predecessors, (70), 20 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Word has length 157 [2024-09-12 21:43:09,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:09,588 INFO L225 Difference]: With dead ends: 173 [2024-09-12 21:43:09,588 INFO L226 Difference]: Without dead ends: 171 [2024-09-12 21:43:09,589 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 330 SyntacticMatches, 38 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=250, Invalid=506, Unknown=0, NotChecked=0, Total=756 [2024-09-12 21:43:09,589 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:09,589 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 70 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:43:09,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-09-12 21:43:09,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 167. [2024-09-12 21:43:09,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 123 states have (on average 1.016260162601626) internal successors, (125), 124 states have internal predecessors, (125), 22 states have call successors, (22), 22 states have call predecessors, (22), 21 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 21:43:09,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 168 transitions. [2024-09-12 21:43:09,613 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 168 transitions. Word has length 157 [2024-09-12 21:43:09,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:09,613 INFO L474 AbstractCegarLoop]: Abstraction has 167 states and 168 transitions. [2024-09-12 21:43:09,613 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 25 states have internal predecessors, (70), 20 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 21:43:09,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:09,614 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 168 transitions. [2024-09-12 21:43:09,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-09-12 21:43:09,614 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:09,615 INFO L216 NwaCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:09,632 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-09-12 21:43:09,815 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-09-12 21:43:09,815 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:09,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:09,816 INFO L85 PathProgramCache]: Analyzing trace with hash -545035444, now seen corresponding path program 37 times [2024-09-12 21:43:09,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:09,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336824922] [2024-09-12 21:43:09,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:09,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:10,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:10,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 21:43:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:10,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 21:43:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:10,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 21:43:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:10,517 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 21:43:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:10,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 21:43:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:10,519 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 21:43:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:10,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 21:43:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:10,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 21:43:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:10,522 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 21:43:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:10,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 21:43:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:10,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 21:43:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:10,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 21:43:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:10,526 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 21:43:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:10,527 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 21:43:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:10,528 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 21:43:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:10,529 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 21:43:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:10,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 21:43:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:10,531 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 21:43:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:10,532 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 21:43:10,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:10,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1463 backedges. 534 proven. 245 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 21:43:10,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:10,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336824922] [2024-09-12 21:43:10,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336824922] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:10,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098713196] [2024-09-12 21:43:10,534 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 21:43:10,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:10,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:10,535 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:10,536 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-09-12 21:43:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:10,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-09-12 21:43:10,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:11,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1463 backedges. 589 proven. 190 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 21:43:11,263 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:11,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1463 backedges. 589 proven. 190 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 21:43:11,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098713196] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:11,821 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:11,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 43] total 65 [2024-09-12 21:43:11,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650572356] [2024-09-12 21:43:11,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:11,822 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2024-09-12 21:43:11,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:11,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2024-09-12 21:43:11,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=950, Invalid=3210, Unknown=0, NotChecked=0, Total=4160 [2024-09-12 21:43:11,823 INFO L87 Difference]: Start difference. First operand 167 states and 168 transitions. Second operand has 65 states, 65 states have (on average 1.7384615384615385) internal successors, (113), 65 states have internal predecessors, (113), 41 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-09-12 21:43:12,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:12,063 INFO L93 Difference]: Finished difference Result 236 states and 257 transitions. [2024-09-12 21:43:12,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-09-12 21:43:12,064 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 1.7384615384615385) internal successors, (113), 65 states have internal predecessors, (113), 41 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Word has length 164 [2024-09-12 21:43:12,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:12,066 INFO L225 Difference]: With dead ends: 236 [2024-09-12 21:43:12,066 INFO L226 Difference]: Without dead ends: 168 [2024-09-12 21:43:12,066 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 308 SyntacticMatches, 39 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2641 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=950, Invalid=3210, Unknown=0, NotChecked=0, Total=4160 [2024-09-12 21:43:12,067 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:12,067 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 376 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:43:12,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-09-12 21:43:12,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2024-09-12 21:43:12,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 124 states have (on average 1.0161290322580645) internal successors, (126), 125 states have internal predecessors, (126), 22 states have call successors, (22), 22 states have call predecessors, (22), 21 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 21:43:12,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 169 transitions. [2024-09-12 21:43:12,083 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 169 transitions. Word has length 164 [2024-09-12 21:43:12,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:12,084 INFO L474 AbstractCegarLoop]: Abstraction has 168 states and 169 transitions. [2024-09-12 21:43:12,084 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 1.7384615384615385) internal successors, (113), 65 states have internal predecessors, (113), 41 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-09-12 21:43:12,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:12,084 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 169 transitions. [2024-09-12 21:43:12,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-09-12 21:43:12,085 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:12,085 INFO L216 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:12,101 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-09-12 21:43:12,286 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-09-12 21:43:12,286 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:12,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:12,287 INFO L85 PathProgramCache]: Analyzing trace with hash -151101352, now seen corresponding path program 38 times [2024-09-12 21:43:12,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:12,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354379813] [2024-09-12 21:43:12,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:12,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:12,742 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:12,743 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 21:43:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:12,744 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 21:43:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:12,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 21:43:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:12,746 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 21:43:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:12,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 21:43:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:12,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 21:43:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:12,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 21:43:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:12,750 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 21:43:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:12,751 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 21:43:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:12,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 21:43:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:12,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 21:43:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:12,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 21:43:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:12,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 21:43:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:12,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 21:43:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:12,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 21:43:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:12,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 21:43:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:12,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 21:43:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:12,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-09-12 21:43:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:12,763 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 21:43:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:12,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 228 proven. 571 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 21:43:12,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:12,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354379813] [2024-09-12 21:43:12,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354379813] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:12,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150120196] [2024-09-12 21:43:12,765 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:43:12,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:12,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:12,767 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:12,769 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-09-12 21:43:12,833 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:43:12,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:43:12,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-09-12 21:43:12,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:12,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 248 proven. 551 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 21:43:12,938 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:13,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 248 proven. 551 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 21:43:13,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150120196] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:13,352 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:13,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 28 [2024-09-12 21:43:13,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050013010] [2024-09-12 21:43:13,352 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:13,353 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-09-12 21:43:13,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:13,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-09-12 21:43:13,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=490, Unknown=0, NotChecked=0, Total=756 [2024-09-12 21:43:13,353 INFO L87 Difference]: Start difference. First operand 168 states and 169 transitions. Second operand has 28 states, 28 states have (on average 2.607142857142857) internal successors, (73), 26 states have internal predecessors, (73), 21 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 21:43:13,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:13,457 INFO L93 Difference]: Finished difference Result 181 states and 183 transitions. [2024-09-12 21:43:13,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 21:43:13,457 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.607142857142857) internal successors, (73), 26 states have internal predecessors, (73), 21 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 165 [2024-09-12 21:43:13,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:13,459 INFO L225 Difference]: With dead ends: 181 [2024-09-12 21:43:13,459 INFO L226 Difference]: Without dead ends: 179 [2024-09-12 21:43:13,459 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 345 SyntacticMatches, 42 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=272, Invalid=540, Unknown=0, NotChecked=0, Total=812 [2024-09-12 21:43:13,459 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:13,459 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 85 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:43:13,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-09-12 21:43:13,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 175. [2024-09-12 21:43:13,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 129 states have (on average 1.0155038759689923) internal successors, (131), 130 states have internal predecessors, (131), 23 states have call successors, (23), 23 states have call predecessors, (23), 22 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 21:43:13,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 176 transitions. [2024-09-12 21:43:13,473 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 176 transitions. Word has length 165 [2024-09-12 21:43:13,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:13,474 INFO L474 AbstractCegarLoop]: Abstraction has 175 states and 176 transitions. [2024-09-12 21:43:13,474 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.607142857142857) internal successors, (73), 26 states have internal predecessors, (73), 21 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 21:43:13,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:13,474 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 176 transitions. [2024-09-12 21:43:13,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-09-12 21:43:13,475 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:13,475 INFO L216 NwaCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:13,491 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-09-12 21:43:13,675 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,40 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:13,676 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:13,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:13,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1782610379, now seen corresponding path program 39 times [2024-09-12 21:43:13,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:13,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529067248] [2024-09-12 21:43:13,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:13,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:13,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:14,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:14,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 21:43:14,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:14,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 21:43:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:14,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 21:43:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:14,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 21:43:14,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:14,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 21:43:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:14,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 21:43:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:14,399 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 21:43:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:14,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 21:43:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:14,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 21:43:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:14,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 21:43:14,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:14,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 21:43:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:14,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 21:43:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:14,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 21:43:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:14,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 21:43:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:14,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 21:43:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:14,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 21:43:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:14,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 21:43:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:14,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-09-12 21:43:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:14,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 21:43:14,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:14,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 21:43:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:14,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1620 backedges. 592 proven. 268 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-09-12 21:43:14,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:14,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529067248] [2024-09-12 21:43:14,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529067248] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:14,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119315143] [2024-09-12 21:43:14,418 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:43:14,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:14,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:14,419 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:14,420 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-09-12 21:43:14,494 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2024-09-12 21:43:14,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:43:14,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-09-12 21:43:14,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:15,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1620 backedges. 650 proven. 210 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-09-12 21:43:15,232 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:15,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1620 backedges. 650 proven. 210 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-09-12 21:43:15,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119315143] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:15,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:15,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45, 45] total 68 [2024-09-12 21:43:15,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534637095] [2024-09-12 21:43:15,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:15,813 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2024-09-12 21:43:15,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:15,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2024-09-12 21:43:15,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1039, Invalid=3517, Unknown=0, NotChecked=0, Total=4556 [2024-09-12 21:43:15,814 INFO L87 Difference]: Start difference. First operand 175 states and 176 transitions. Second operand has 68 states, 68 states have (on average 1.7352941176470589) internal successors, (118), 68 states have internal predecessors, (118), 43 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-09-12 21:43:16,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:16,062 INFO L93 Difference]: Finished difference Result 247 states and 269 transitions. [2024-09-12 21:43:16,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-09-12 21:43:16,063 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 1.7352941176470589) internal successors, (118), 68 states have internal predecessors, (118), 43 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Word has length 172 [2024-09-12 21:43:16,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:16,064 INFO L225 Difference]: With dead ends: 247 [2024-09-12 21:43:16,064 INFO L226 Difference]: Without dead ends: 176 [2024-09-12 21:43:16,065 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 323 SyntacticMatches, 41 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2900 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1039, Invalid=3517, Unknown=0, NotChecked=0, Total=4556 [2024-09-12 21:43:16,065 INFO L434 NwaCegarLoop]: 50 mSDtfsCounter, 0 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:16,066 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 355 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:43:16,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-09-12 21:43:16,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-09-12 21:43:16,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 130 states have (on average 1.0153846153846153) internal successors, (132), 131 states have internal predecessors, (132), 23 states have call successors, (23), 23 states have call predecessors, (23), 22 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 21:43:16,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 177 transitions. [2024-09-12 21:43:16,080 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 177 transitions. Word has length 172 [2024-09-12 21:43:16,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:16,080 INFO L474 AbstractCegarLoop]: Abstraction has 176 states and 177 transitions. [2024-09-12 21:43:16,080 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 1.7352941176470589) internal successors, (118), 68 states have internal predecessors, (118), 43 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-09-12 21:43:16,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:16,080 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 177 transitions. [2024-09-12 21:43:16,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-09-12 21:43:16,081 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:16,081 INFO L216 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:16,098 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-09-12 21:43:16,282 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-09-12 21:43:16,282 INFO L399 AbstractCegarLoop]: === Iteration 43 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:16,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:16,283 INFO L85 PathProgramCache]: Analyzing trace with hash -651451689, now seen corresponding path program 40 times [2024-09-12 21:43:16,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:16,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30602851] [2024-09-12 21:43:16,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:16,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:16,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:16,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:16,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 21:43:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:16,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 21:43:16,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:16,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 21:43:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:16,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 21:43:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:16,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 21:43:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:16,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 21:43:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:16,702 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 21:43:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:16,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 21:43:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:16,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 21:43:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:16,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 21:43:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:16,707 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 21:43:16,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:16,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 21:43:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:16,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 21:43:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:16,711 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 21:43:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:16,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 21:43:16,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:16,713 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 21:43:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:16,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 21:43:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:16,716 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-09-12 21:43:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:16,717 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 21:43:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:16,718 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 21:43:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:16,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1641 backedges. 250 proven. 631 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-09-12 21:43:16,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:16,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30602851] [2024-09-12 21:43:16,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30602851] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:16,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415426498] [2024-09-12 21:43:16,720 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:43:16,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:16,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:16,722 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:16,724 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-09-12 21:43:16,791 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:43:16,791 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:43:16,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-09-12 21:43:16,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:16,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1641 backedges. 271 proven. 610 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-09-12 21:43:16,889 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:17,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1641 backedges. 271 proven. 610 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-09-12 21:43:17,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415426498] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:17,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:17,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 29 [2024-09-12 21:43:17,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316123510] [2024-09-12 21:43:17,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:17,313 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-09-12 21:43:17,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:17,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-09-12 21:43:17,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=523, Unknown=0, NotChecked=0, Total=812 [2024-09-12 21:43:17,314 INFO L87 Difference]: Start difference. First operand 176 states and 177 transitions. Second operand has 29 states, 29 states have (on average 2.6206896551724137) internal successors, (76), 27 states have internal predecessors, (76), 22 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 21:43:17,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:17,438 INFO L93 Difference]: Finished difference Result 189 states and 191 transitions. [2024-09-12 21:43:17,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-12 21:43:17,439 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.6206896551724137) internal successors, (76), 27 states have internal predecessors, (76), 22 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Word has length 173 [2024-09-12 21:43:17,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:17,440 INFO L225 Difference]: With dead ends: 189 [2024-09-12 21:43:17,440 INFO L226 Difference]: Without dead ends: 187 [2024-09-12 21:43:17,441 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 364 SyntacticMatches, 42 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=295, Invalid=575, Unknown=0, NotChecked=0, Total=870 [2024-09-12 21:43:17,441 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:17,441 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 121 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:43:17,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-09-12 21:43:17,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 183. [2024-09-12 21:43:17,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 135 states have (on average 1.0148148148148148) internal successors, (137), 136 states have internal predecessors, (137), 24 states have call successors, (24), 24 states have call predecessors, (24), 23 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 21:43:17,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 184 transitions. [2024-09-12 21:43:17,454 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 184 transitions. Word has length 173 [2024-09-12 21:43:17,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:17,456 INFO L474 AbstractCegarLoop]: Abstraction has 183 states and 184 transitions. [2024-09-12 21:43:17,456 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.6206896551724137) internal successors, (76), 27 states have internal predecessors, (76), 22 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 21:43:17,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:17,456 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 184 transitions. [2024-09-12 21:43:17,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-09-12 21:43:17,457 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:17,457 INFO L216 NwaCegarLoop]: trace histogram [22, 22, 22, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:17,474 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-09-12 21:43:17,658 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,42 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:17,658 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:17,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:17,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1044759956, now seen corresponding path program 41 times [2024-09-12 21:43:17,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:17,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865532423] [2024-09-12 21:43:17,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:17,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 21:43:18,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 21:43:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 21:43:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 21:43:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,449 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 21:43:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 21:43:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,452 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 21:43:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 21:43:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 21:43:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 21:43:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 21:43:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 21:43:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 21:43:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 21:43:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 21:43:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 21:43:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 21:43:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,466 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-09-12 21:43:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 21:43:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,469 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 21:43:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 21:43:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:18,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1785 backedges. 653 proven. 292 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 21:43:18,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:18,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865532423] [2024-09-12 21:43:18,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865532423] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:18,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400433575] [2024-09-12 21:43:18,473 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:43:18,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:18,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:18,475 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:18,476 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-09-12 21:43:18,577 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 22 check-sat command(s) [2024-09-12 21:43:18,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:43:18,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-09-12 21:43:18,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:19,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1785 backedges. 714 proven. 231 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 21:43:19,423 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:20,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1785 backedges. 714 proven. 231 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 21:43:20,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400433575] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:20,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:20,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 71 [2024-09-12 21:43:20,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331719755] [2024-09-12 21:43:20,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:20,065 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2024-09-12 21:43:20,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:20,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2024-09-12 21:43:20,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1132, Invalid=3838, Unknown=0, NotChecked=0, Total=4970 [2024-09-12 21:43:20,066 INFO L87 Difference]: Start difference. First operand 183 states and 184 transitions. Second operand has 71 states, 71 states have (on average 1.732394366197183) internal successors, (123), 71 states have internal predecessors, (123), 45 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-09-12 21:43:20,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:20,361 INFO L93 Difference]: Finished difference Result 258 states and 281 transitions. [2024-09-12 21:43:20,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-09-12 21:43:20,361 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 1.732394366197183) internal successors, (123), 71 states have internal predecessors, (123), 45 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 180 [2024-09-12 21:43:20,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:20,362 INFO L225 Difference]: With dead ends: 258 [2024-09-12 21:43:20,362 INFO L226 Difference]: Without dead ends: 184 [2024-09-12 21:43:20,363 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 338 SyntacticMatches, 43 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3171 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1132, Invalid=3838, Unknown=0, NotChecked=0, Total=4970 [2024-09-12 21:43:20,363 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:20,363 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 456 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:43:20,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-09-12 21:43:20,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2024-09-12 21:43:20,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 136 states have (on average 1.0147058823529411) internal successors, (138), 137 states have internal predecessors, (138), 24 states have call successors, (24), 24 states have call predecessors, (24), 23 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 21:43:20,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 185 transitions. [2024-09-12 21:43:20,376 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 185 transitions. Word has length 180 [2024-09-12 21:43:20,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:20,376 INFO L474 AbstractCegarLoop]: Abstraction has 184 states and 185 transitions. [2024-09-12 21:43:20,377 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 1.732394366197183) internal successors, (123), 71 states have internal predecessors, (123), 45 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-09-12 21:43:20,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:20,377 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 185 transitions. [2024-09-12 21:43:20,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-09-12 21:43:20,378 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:20,378 INFO L216 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:20,394 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-09-12 21:43:20,578 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,43 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:20,578 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:20,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:20,579 INFO L85 PathProgramCache]: Analyzing trace with hash -22964360, now seen corresponding path program 42 times [2024-09-12 21:43:20,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:20,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266121872] [2024-09-12 21:43:20,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:20,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:20,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,021 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 21:43:21,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 21:43:21,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 21:43:21,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 21:43:21,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 21:43:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,026 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 21:43:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,026 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 21:43:21,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 21:43:21,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 21:43:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 21:43:21,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 21:43:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 21:43:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 21:43:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 21:43:21,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 21:43:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-09-12 21:43:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 21:43:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 21:43:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-09-12 21:43:21,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 21:43:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 21:43:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:21,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1807 backedges. 273 proven. 694 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 21:43:21,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:21,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266121872] [2024-09-12 21:43:21,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266121872] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:21,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708207089] [2024-09-12 21:43:21,043 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:43:21,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:21,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:21,045 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:21,046 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-09-12 21:43:21,124 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 22 check-sat command(s) [2024-09-12 21:43:21,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:43:21,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-09-12 21:43:21,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:21,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1807 backedges. 295 proven. 672 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 21:43:21,233 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:21,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1807 backedges. 295 proven. 672 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 21:43:21,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708207089] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:21,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:21,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 30 [2024-09-12 21:43:21,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105447398] [2024-09-12 21:43:21,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:21,683 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-09-12 21:43:21,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:21,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-09-12 21:43:21,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=313, Invalid=557, Unknown=0, NotChecked=0, Total=870 [2024-09-12 21:43:21,683 INFO L87 Difference]: Start difference. First operand 184 states and 185 transitions. Second operand has 30 states, 30 states have (on average 2.6333333333333333) internal successors, (79), 28 states have internal predecessors, (79), 23 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 21:43:21,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:21,827 INFO L93 Difference]: Finished difference Result 197 states and 199 transitions. [2024-09-12 21:43:21,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 21:43:21,827 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.6333333333333333) internal successors, (79), 28 states have internal predecessors, (79), 23 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Word has length 181 [2024-09-12 21:43:21,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:21,828 INFO L225 Difference]: With dead ends: 197 [2024-09-12 21:43:21,828 INFO L226 Difference]: Without dead ends: 195 [2024-09-12 21:43:21,829 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 381 SyntacticMatches, 44 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=319, Invalid=611, Unknown=0, NotChecked=0, Total=930 [2024-09-12 21:43:21,829 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:21,829 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 91 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:43:21,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-09-12 21:43:21,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 191. [2024-09-12 21:43:21,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 141 states have (on average 1.0141843971631206) internal successors, (143), 142 states have internal predecessors, (143), 25 states have call successors, (25), 25 states have call predecessors, (25), 24 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 21:43:21,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 192 transitions. [2024-09-12 21:43:21,844 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 192 transitions. Word has length 181 [2024-09-12 21:43:21,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:21,844 INFO L474 AbstractCegarLoop]: Abstraction has 191 states and 192 transitions. [2024-09-12 21:43:21,845 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.6333333333333333) internal successors, (79), 28 states have internal predecessors, (79), 23 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 21:43:21,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:21,845 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 192 transitions. [2024-09-12 21:43:21,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-09-12 21:43:21,846 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:21,846 INFO L216 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:21,859 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-09-12 21:43:22,046 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-09-12 21:43:22,047 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:22,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:22,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1913061035, now seen corresponding path program 43 times [2024-09-12 21:43:22,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:22,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567703645] [2024-09-12 21:43:22,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:22,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:22,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-09-12 21:43:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 21:43:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 21:43:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 21:43:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 21:43:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,868 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 21:43:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 21:43:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 21:43:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 21:43:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,871 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 21:43:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 21:43:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 21:43:22,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,874 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 21:43:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,875 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 21:43:22,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,875 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 21:43:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,876 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-09-12 21:43:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 21:43:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 21:43:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-09-12 21:43:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 21:43:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,883 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 21:43:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-09-12 21:43:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 717 proven. 317 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 21:43:22,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:22,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567703645] [2024-09-12 21:43:22,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567703645] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:22,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649581622] [2024-09-12 21:43:22,885 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 21:43:22,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:22,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:22,887 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:22,887 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-09-12 21:43:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:22,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-09-12 21:43:22,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:23,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 781 proven. 253 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 21:43:23,786 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:24,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 781 proven. 253 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 21:43:24,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649581622] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:24,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:24,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 74 [2024-09-12 21:43:24,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616468891] [2024-09-12 21:43:24,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:24,458 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2024-09-12 21:43:24,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:24,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2024-09-12 21:43:24,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1229, Invalid=4173, Unknown=0, NotChecked=0, Total=5402 [2024-09-12 21:43:24,459 INFO L87 Difference]: Start difference. First operand 191 states and 192 transitions. Second operand has 74 states, 74 states have (on average 1.7297297297297298) internal successors, (128), 74 states have internal predecessors, (128), 47 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-09-12 21:43:24,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:24,722 INFO L93 Difference]: Finished difference Result 269 states and 293 transitions. [2024-09-12 21:43:24,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-09-12 21:43:24,723 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 1.7297297297297298) internal successors, (128), 74 states have internal predecessors, (128), 47 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Word has length 188 [2024-09-12 21:43:24,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:24,724 INFO L225 Difference]: With dead ends: 269 [2024-09-12 21:43:24,724 INFO L226 Difference]: Without dead ends: 192 [2024-09-12 21:43:24,725 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 353 SyntacticMatches, 45 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3454 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1229, Invalid=4173, Unknown=0, NotChecked=0, Total=5402 [2024-09-12 21:43:24,726 INFO L434 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:24,726 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 494 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:43:24,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-09-12 21:43:24,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2024-09-12 21:43:24,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 142 states have (on average 1.0140845070422535) internal successors, (144), 143 states have internal predecessors, (144), 25 states have call successors, (25), 25 states have call predecessors, (25), 24 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 21:43:24,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 193 transitions. [2024-09-12 21:43:24,742 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 193 transitions. Word has length 188 [2024-09-12 21:43:24,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:24,742 INFO L474 AbstractCegarLoop]: Abstraction has 192 states and 193 transitions. [2024-09-12 21:43:24,742 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 1.7297297297297298) internal successors, (128), 74 states have internal predecessors, (128), 47 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-09-12 21:43:24,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:24,743 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 193 transitions. [2024-09-12 21:43:24,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-09-12 21:43:24,743 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:24,744 INFO L216 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:24,760 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-09-12 21:43:24,944 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-09-12 21:43:24,944 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:24,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:24,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1485402185, now seen corresponding path program 44 times [2024-09-12 21:43:24,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:24,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532285939] [2024-09-12 21:43:24,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:24,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:24,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,449 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 21:43:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 21:43:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 21:43:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,452 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 21:43:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 21:43:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 21:43:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 21:43:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 21:43:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 21:43:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-09-12 21:43:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 21:43:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 21:43:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 21:43:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 21:43:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 21:43:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-09-12 21:43:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 21:43:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-09-12 21:43:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 21:43:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,466 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-09-12 21:43:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 21:43:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-09-12 21:43:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:25,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 297 proven. 760 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 21:43:25,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:25,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532285939] [2024-09-12 21:43:25,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532285939] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:25,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4132811] [2024-09-12 21:43:25,469 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:43:25,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:25,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:25,473 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:25,474 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-09-12 21:43:25,544 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:43:25,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:43:25,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-09-12 21:43:25,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:25,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 320 proven. 737 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 21:43:25,650 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:26,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 320 proven. 737 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 21:43:26,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4132811] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:26,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:26,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 31 [2024-09-12 21:43:26,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295102904] [2024-09-12 21:43:26,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:26,158 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-09-12 21:43:26,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:26,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-09-12 21:43:26,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=338, Invalid=592, Unknown=0, NotChecked=0, Total=930 [2024-09-12 21:43:26,159 INFO L87 Difference]: Start difference. First operand 192 states and 193 transitions. Second operand has 31 states, 31 states have (on average 2.6451612903225805) internal successors, (82), 29 states have internal predecessors, (82), 24 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 21:43:26,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:26,284 INFO L93 Difference]: Finished difference Result 205 states and 207 transitions. [2024-09-12 21:43:26,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-09-12 21:43:26,284 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.6451612903225805) internal successors, (82), 29 states have internal predecessors, (82), 24 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Word has length 189 [2024-09-12 21:43:26,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:26,286 INFO L225 Difference]: With dead ends: 205 [2024-09-12 21:43:26,286 INFO L226 Difference]: Without dead ends: 203 [2024-09-12 21:43:26,286 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 396 SyntacticMatches, 48 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 847 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=344, Invalid=648, Unknown=0, NotChecked=0, Total=992 [2024-09-12 21:43:26,286 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:26,287 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 81 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:43:26,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-09-12 21:43:26,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 199. [2024-09-12 21:43:26,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 147 states have (on average 1.0136054421768708) internal successors, (149), 148 states have internal predecessors, (149), 26 states have call successors, (26), 26 states have call predecessors, (26), 25 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 21:43:26,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 200 transitions. [2024-09-12 21:43:26,301 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 200 transitions. Word has length 189 [2024-09-12 21:43:26,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:26,302 INFO L474 AbstractCegarLoop]: Abstraction has 199 states and 200 transitions. [2024-09-12 21:43:26,302 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.6451612903225805) internal successors, (82), 29 states have internal predecessors, (82), 24 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 21:43:26,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:26,302 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 200 transitions. [2024-09-12 21:43:26,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-09-12 21:43:26,303 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:26,303 INFO L216 NwaCegarLoop]: trace histogram [24, 24, 24, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:26,316 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-09-12 21:43:26,503 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,46 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:26,504 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:26,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:26,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1500180084, now seen corresponding path program 45 times [2024-09-12 21:43:26,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:26,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64515810] [2024-09-12 21:43:26,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:26,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:27,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,375 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 21:43:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 21:43:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 21:43:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 21:43:27,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,379 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 21:43:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 21:43:27,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 21:43:27,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 21:43:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 21:43:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,384 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-09-12 21:43:27,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,384 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 21:43:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 21:43:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,386 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 21:43:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 21:43:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 21:43:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-09-12 21:43:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 21:43:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-09-12 21:43:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 21:43:27,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-09-12 21:43:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,399 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 21:43:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-09-12 21:43:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 21:43:27,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:27,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2139 backedges. 784 proven. 343 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 21:43:27,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:27,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64515810] [2024-09-12 21:43:27,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64515810] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:27,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616765657] [2024-09-12 21:43:27,404 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:43:27,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:27,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:27,406 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:27,406 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-09-12 21:43:27,490 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2024-09-12 21:43:27,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:43:27,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-09-12 21:43:27,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:28,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2139 backedges. 851 proven. 276 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 21:43:28,376 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:29,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2139 backedges. 851 proven. 276 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 21:43:29,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616765657] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:29,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:29,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51, 51] total 77 [2024-09-12 21:43:29,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854395892] [2024-09-12 21:43:29,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:29,103 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2024-09-12 21:43:29,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:29,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2024-09-12 21:43:29,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1330, Invalid=4522, Unknown=0, NotChecked=0, Total=5852 [2024-09-12 21:43:29,104 INFO L87 Difference]: Start difference. First operand 199 states and 200 transitions. Second operand has 77 states, 77 states have (on average 1.7272727272727273) internal successors, (133), 77 states have internal predecessors, (133), 49 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 21:43:29,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:29,356 INFO L93 Difference]: Finished difference Result 280 states and 305 transitions. [2024-09-12 21:43:29,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-09-12 21:43:29,356 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 77 states have (on average 1.7272727272727273) internal successors, (133), 77 states have internal predecessors, (133), 49 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Word has length 196 [2024-09-12 21:43:29,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:29,358 INFO L225 Difference]: With dead ends: 280 [2024-09-12 21:43:29,358 INFO L226 Difference]: Without dead ends: 200 [2024-09-12 21:43:29,359 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 368 SyntacticMatches, 47 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3749 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1330, Invalid=4522, Unknown=0, NotChecked=0, Total=5852 [2024-09-12 21:43:29,359 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:29,359 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 497 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:43:29,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-09-12 21:43:29,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2024-09-12 21:43:29,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 148 states have (on average 1.0135135135135136) internal successors, (150), 149 states have internal predecessors, (150), 26 states have call successors, (26), 26 states have call predecessors, (26), 25 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 21:43:29,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 201 transitions. [2024-09-12 21:43:29,375 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 201 transitions. Word has length 196 [2024-09-12 21:43:29,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:29,376 INFO L474 AbstractCegarLoop]: Abstraction has 200 states and 201 transitions. [2024-09-12 21:43:29,376 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 1.7272727272727273) internal successors, (133), 77 states have internal predecessors, (133), 49 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 21:43:29,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:29,376 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 201 transitions. [2024-09-12 21:43:29,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-09-12 21:43:29,377 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:29,377 INFO L216 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:29,389 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-09-12 21:43:29,577 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,47 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:29,577 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:29,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:29,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1290217832, now seen corresponding path program 46 times [2024-09-12 21:43:29,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:29,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605435079] [2024-09-12 21:43:29,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:29,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,098 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 21:43:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,099 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 21:43:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,100 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 21:43:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,101 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 21:43:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,102 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-09-12 21:43:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,102 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-09-12 21:43:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 21:43:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,104 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 21:43:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 21:43:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 21:43:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,107 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 21:43:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 21:43:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-09-12 21:43:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,110 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 21:43:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 21:43:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,112 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 21:43:30,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,112 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 21:43:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,113 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-09-12 21:43:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,114 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 21:43:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-09-12 21:43:30,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-09-12 21:43:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,117 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 21:43:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,117 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 21:43:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:30,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2163 backedges. 322 proven. 829 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 21:43:30,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:30,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605435079] [2024-09-12 21:43:30,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605435079] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:30,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997125774] [2024-09-12 21:43:30,119 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:43:30,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:30,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:30,120 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:30,121 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-09-12 21:43:30,195 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:43:30,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:43:30,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-09-12 21:43:30,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:30,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2163 backedges. 346 proven. 805 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 21:43:30,304 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:30,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2163 backedges. 346 proven. 805 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 21:43:30,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997125774] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:30,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:30,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 32 [2024-09-12 21:43:30,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509587115] [2024-09-12 21:43:30,826 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:30,826 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-12 21:43:30,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:30,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-12 21:43:30,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=364, Invalid=628, Unknown=0, NotChecked=0, Total=992 [2024-09-12 21:43:30,827 INFO L87 Difference]: Start difference. First operand 200 states and 201 transitions. Second operand has 32 states, 32 states have (on average 2.65625) internal successors, (85), 30 states have internal predecessors, (85), 25 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 21:43:30,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:30,959 INFO L93 Difference]: Finished difference Result 213 states and 215 transitions. [2024-09-12 21:43:30,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-12 21:43:30,960 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.65625) internal successors, (85), 30 states have internal predecessors, (85), 25 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Word has length 197 [2024-09-12 21:43:30,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:30,961 INFO L225 Difference]: With dead ends: 213 [2024-09-12 21:43:30,961 INFO L226 Difference]: Without dead ends: 211 [2024-09-12 21:43:30,961 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 415 SyntacticMatches, 48 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=370, Invalid=686, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 21:43:30,962 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:30,962 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 100 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:43:30,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-09-12 21:43:30,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 207. [2024-09-12 21:43:30,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 153 states have (on average 1.0130718954248366) internal successors, (155), 154 states have internal predecessors, (155), 27 states have call successors, (27), 27 states have call predecessors, (27), 26 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 21:43:30,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 208 transitions. [2024-09-12 21:43:30,976 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 208 transitions. Word has length 197 [2024-09-12 21:43:30,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:30,976 INFO L474 AbstractCegarLoop]: Abstraction has 207 states and 208 transitions. [2024-09-12 21:43:30,977 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.65625) internal successors, (85), 30 states have internal predecessors, (85), 25 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 21:43:30,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:30,977 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 208 transitions. [2024-09-12 21:43:30,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-09-12 21:43:30,977 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:30,978 INFO L216 NwaCegarLoop]: trace histogram [25, 25, 25, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:30,990 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-09-12 21:43:31,178 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-09-12 21:43:31,178 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:31,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:31,178 INFO L85 PathProgramCache]: Analyzing trace with hash 2145418123, now seen corresponding path program 47 times [2024-09-12 21:43:31,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:31,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257993053] [2024-09-12 21:43:31,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:31,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-09-12 21:43:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 21:43:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 21:43:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 21:43:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-09-12 21:43:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,167 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-09-12 21:43:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 21:43:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,169 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 21:43:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 21:43:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,171 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 21:43:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 21:43:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 21:43:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,174 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-09-12 21:43:32,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,174 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 21:43:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,175 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 21:43:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,176 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 21:43:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 21:43:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-09-12 21:43:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,179 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 21:43:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,180 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-09-12 21:43:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,181 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-09-12 21:43:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,182 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 21:43:32,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 21:43:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,185 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 21:43:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:32,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2328 backedges. 854 proven. 370 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-09-12 21:43:32,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:32,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257993053] [2024-09-12 21:43:32,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257993053] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:32,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663605499] [2024-09-12 21:43:32,187 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:43:32,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:32,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:32,189 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:32,190 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-09-12 21:43:32,279 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2024-09-12 21:43:32,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:43:32,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-09-12 21:43:32,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:33,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2328 backedges. 924 proven. 300 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-09-12 21:43:33,276 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:34,047 INFO L134 CoverageAnalysis]: Checked inductivity of 2328 backedges. 924 proven. 300 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-09-12 21:43:34,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663605499] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:34,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:34,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 80 [2024-09-12 21:43:34,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516513547] [2024-09-12 21:43:34,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:34,048 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2024-09-12 21:43:34,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:34,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2024-09-12 21:43:34,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1435, Invalid=4885, Unknown=0, NotChecked=0, Total=6320 [2024-09-12 21:43:34,049 INFO L87 Difference]: Start difference. First operand 207 states and 208 transitions. Second operand has 80 states, 80 states have (on average 1.725) internal successors, (138), 80 states have internal predecessors, (138), 51 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-09-12 21:43:34,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:34,361 INFO L93 Difference]: Finished difference Result 291 states and 317 transitions. [2024-09-12 21:43:34,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-09-12 21:43:34,362 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 80 states have (on average 1.725) internal successors, (138), 80 states have internal predecessors, (138), 51 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Word has length 204 [2024-09-12 21:43:34,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:34,363 INFO L225 Difference]: With dead ends: 291 [2024-09-12 21:43:34,364 INFO L226 Difference]: Without dead ends: 208 [2024-09-12 21:43:34,364 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 383 SyntacticMatches, 49 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4056 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1435, Invalid=4885, Unknown=0, NotChecked=0, Total=6320 [2024-09-12 21:43:34,365 INFO L434 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:34,365 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 386 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:43:34,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-09-12 21:43:34,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2024-09-12 21:43:34,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 154 states have (on average 1.0129870129870129) internal successors, (156), 155 states have internal predecessors, (156), 27 states have call successors, (27), 27 states have call predecessors, (27), 26 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 21:43:34,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 209 transitions. [2024-09-12 21:43:34,385 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 209 transitions. Word has length 204 [2024-09-12 21:43:34,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:34,386 INFO L474 AbstractCegarLoop]: Abstraction has 208 states and 209 transitions. [2024-09-12 21:43:34,386 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 80 states have (on average 1.725) internal successors, (138), 80 states have internal predecessors, (138), 51 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-09-12 21:43:34,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:34,387 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 209 transitions. [2024-09-12 21:43:34,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-09-12 21:43:34,387 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:34,388 INFO L216 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:34,406 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2024-09-12 21:43:34,588 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-09-12 21:43:34,588 INFO L399 AbstractCegarLoop]: === Iteration 51 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:34,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:34,589 INFO L85 PathProgramCache]: Analyzing trace with hash -167480169, now seen corresponding path program 48 times [2024-09-12 21:43:34,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:34,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321229744] [2024-09-12 21:43:34,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:34,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 21:43:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,141 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 21:43:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 21:43:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-09-12 21:43:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 21:43:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,144 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-09-12 21:43:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,145 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 21:43:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,146 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 21:43:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 21:43:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 21:43:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 21:43:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 21:43:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 21:43:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 21:43:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,153 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 21:43:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 21:43:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 21:43:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-09-12 21:43:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 21:43:35,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,159 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 21:43:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,161 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 21:43:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-09-12 21:43:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 21:43:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-09-12 21:43:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:35,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2353 backedges. 348 proven. 901 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-09-12 21:43:35,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:35,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321229744] [2024-09-12 21:43:35,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321229744] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:35,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977937507] [2024-09-12 21:43:35,166 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:43:35,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:35,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:35,167 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:35,168 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-09-12 21:43:35,256 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2024-09-12 21:43:35,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:43:35,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-09-12 21:43:35,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:35,369 INFO L134 CoverageAnalysis]: Checked inductivity of 2353 backedges. 373 proven. 876 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-09-12 21:43:35,369 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:35,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2353 backedges. 373 proven. 876 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-09-12 21:43:35,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977937507] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:35,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:35,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 30] total 33 [2024-09-12 21:43:35,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300589909] [2024-09-12 21:43:35,929 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:35,930 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-09-12 21:43:35,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:35,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-09-12 21:43:35,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=391, Invalid=665, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 21:43:35,931 INFO L87 Difference]: Start difference. First operand 208 states and 209 transitions. Second operand has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 31 states have internal predecessors, (88), 26 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 21:43:36,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:36,058 INFO L93 Difference]: Finished difference Result 221 states and 223 transitions. [2024-09-12 21:43:36,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-09-12 21:43:36,059 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 31 states have internal predecessors, (88), 26 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Word has length 205 [2024-09-12 21:43:36,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:36,061 INFO L225 Difference]: With dead ends: 221 [2024-09-12 21:43:36,061 INFO L226 Difference]: Without dead ends: 219 [2024-09-12 21:43:36,061 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 432 SyntacticMatches, 50 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 919 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=397, Invalid=725, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 21:43:36,061 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:36,061 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 111 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:43:36,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-09-12 21:43:36,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 215. [2024-09-12 21:43:36,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 159 states have (on average 1.0125786163522013) internal successors, (161), 160 states have internal predecessors, (161), 28 states have call successors, (28), 28 states have call predecessors, (28), 27 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-09-12 21:43:36,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 216 transitions. [2024-09-12 21:43:36,088 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 216 transitions. Word has length 205 [2024-09-12 21:43:36,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:36,088 INFO L474 AbstractCegarLoop]: Abstraction has 215 states and 216 transitions. [2024-09-12 21:43:36,088 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 31 states have internal predecessors, (88), 26 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 21:43:36,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:36,089 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 216 transitions. [2024-09-12 21:43:36,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-09-12 21:43:36,090 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:36,090 INFO L216 NwaCegarLoop]: trace histogram [26, 26, 26, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:36,107 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2024-09-12 21:43:36,290 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,50 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:36,291 INFO L399 AbstractCegarLoop]: === Iteration 52 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:36,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:36,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1067061076, now seen corresponding path program 49 times [2024-09-12 21:43:36,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:36,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849933621] [2024-09-12 21:43:36,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:36,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:36,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,324 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 21:43:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 21:43:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 21:43:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-09-12 21:43:37,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 21:43:37,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-09-12 21:43:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,329 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 21:43:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,330 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 21:43:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,331 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 21:43:37,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,332 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 21:43:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,332 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 21:43:37,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 21:43:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 21:43:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,335 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 21:43:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,336 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 21:43:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,337 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 21:43:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 21:43:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-09-12 21:43:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,339 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 21:43:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,340 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 21:43:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,341 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 21:43:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-09-12 21:43:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,343 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 21:43:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-09-12 21:43:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 21:43:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2525 backedges. 927 proven. 398 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-09-12 21:43:37,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:37,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849933621] [2024-09-12 21:43:37,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849933621] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:37,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212294082] [2024-09-12 21:43:37,346 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 21:43:37,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:37,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:37,347 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:37,348 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-09-12 21:43:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:37,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-09-12 21:43:37,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:38,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2525 backedges. 1000 proven. 325 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-09-12 21:43:38,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:39,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2525 backedges. 1000 proven. 325 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-09-12 21:43:39,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212294082] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:39,296 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:39,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55, 55] total 83 [2024-09-12 21:43:39,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600613053] [2024-09-12 21:43:39,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:39,296 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2024-09-12 21:43:39,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:39,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2024-09-12 21:43:39,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1544, Invalid=5262, Unknown=0, NotChecked=0, Total=6806 [2024-09-12 21:43:39,298 INFO L87 Difference]: Start difference. First operand 215 states and 216 transitions. Second operand has 83 states, 83 states have (on average 1.7228915662650603) internal successors, (143), 83 states have internal predecessors, (143), 53 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-09-12 21:43:39,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:39,567 INFO L93 Difference]: Finished difference Result 302 states and 329 transitions. [2024-09-12 21:43:39,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-09-12 21:43:39,567 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 83 states have (on average 1.7228915662650603) internal successors, (143), 83 states have internal predecessors, (143), 53 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Word has length 212 [2024-09-12 21:43:39,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:39,569 INFO L225 Difference]: With dead ends: 302 [2024-09-12 21:43:39,569 INFO L226 Difference]: Without dead ends: 216 [2024-09-12 21:43:39,570 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 398 SyntacticMatches, 51 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4375 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1544, Invalid=5262, Unknown=0, NotChecked=0, Total=6806 [2024-09-12 21:43:39,570 INFO L434 NwaCegarLoop]: 60 mSDtfsCounter, 0 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:39,570 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 399 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:43:39,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-09-12 21:43:39,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2024-09-12 21:43:39,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 160 states have (on average 1.0125) internal successors, (162), 161 states have internal predecessors, (162), 28 states have call successors, (28), 28 states have call predecessors, (28), 27 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-09-12 21:43:39,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 217 transitions. [2024-09-12 21:43:39,585 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 217 transitions. Word has length 212 [2024-09-12 21:43:39,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:39,585 INFO L474 AbstractCegarLoop]: Abstraction has 216 states and 217 transitions. [2024-09-12 21:43:39,585 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 1.7228915662650603) internal successors, (143), 83 states have internal predecessors, (143), 53 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-09-12 21:43:39,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:39,586 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 217 transitions. [2024-09-12 21:43:39,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-09-12 21:43:39,586 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:39,586 INFO L216 NwaCegarLoop]: trace histogram [26, 26, 26, 26, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:39,598 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-09-12 21:43:39,787 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2024-09-12 21:43:39,787 INFO L399 AbstractCegarLoop]: === Iteration 53 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:39,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:39,787 INFO L85 PathProgramCache]: Analyzing trace with hash -424272456, now seen corresponding path program 50 times [2024-09-12 21:43:39,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:39,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913926185] [2024-09-12 21:43:39,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:39,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,483 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 21:43:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 21:43:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 21:43:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 21:43:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 21:43:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 21:43:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,490 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 21:43:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 21:43:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 21:43:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,494 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 21:43:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 21:43:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,496 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 21:43:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 21:43:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,498 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 21:43:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 21:43:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 21:43:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,502 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 21:43:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 21:43:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 21:43:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-09-12 21:43:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-09-12 21:43:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 21:43:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-09-12 21:43:40,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 21:43:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 21:43:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:40,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2551 backedges. 375 proven. 976 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-09-12 21:43:40,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:40,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913926185] [2024-09-12 21:43:40,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913926185] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:40,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574463589] [2024-09-12 21:43:40,514 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:43:40,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:40,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:40,516 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:40,517 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-09-12 21:43:40,602 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:43:40,602 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:43:40,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-09-12 21:43:40,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:40,729 INFO L134 CoverageAnalysis]: Checked inductivity of 2551 backedges. 401 proven. 950 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-09-12 21:43:40,729 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:41,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2551 backedges. 401 proven. 950 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-09-12 21:43:41,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574463589] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:41,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:41,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 34 [2024-09-12 21:43:41,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249315130] [2024-09-12 21:43:41,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:41,351 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-09-12 21:43:41,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:41,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-09-12 21:43:41,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=419, Invalid=703, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 21:43:41,351 INFO L87 Difference]: Start difference. First operand 216 states and 217 transitions. Second operand has 34 states, 34 states have (on average 2.676470588235294) internal successors, (91), 32 states have internal predecessors, (91), 27 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 21:43:41,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:41,487 INFO L93 Difference]: Finished difference Result 229 states and 231 transitions. [2024-09-12 21:43:41,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-12 21:43:41,488 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.676470588235294) internal successors, (91), 32 states have internal predecessors, (91), 27 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Word has length 213 [2024-09-12 21:43:41,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:41,489 INFO L225 Difference]: With dead ends: 229 [2024-09-12 21:43:41,489 INFO L226 Difference]: Without dead ends: 227 [2024-09-12 21:43:41,489 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 447 SyntacticMatches, 54 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1036 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=425, Invalid=765, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 21:43:41,489 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:41,490 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 91 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:43:41,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-09-12 21:43:41,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 223. [2024-09-12 21:43:41,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 165 states have (on average 1.0121212121212122) internal successors, (167), 166 states have internal predecessors, (167), 29 states have call successors, (29), 29 states have call predecessors, (29), 28 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 21:43:41,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 224 transitions. [2024-09-12 21:43:41,505 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 224 transitions. Word has length 213 [2024-09-12 21:43:41,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:41,505 INFO L474 AbstractCegarLoop]: Abstraction has 223 states and 224 transitions. [2024-09-12 21:43:41,505 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.676470588235294) internal successors, (91), 32 states have internal predecessors, (91), 27 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 21:43:41,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:41,506 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 224 transitions. [2024-09-12 21:43:41,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-09-12 21:43:41,507 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:41,507 INFO L216 NwaCegarLoop]: trace histogram [27, 27, 27, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:41,522 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2024-09-12 21:43:41,707 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,52 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:41,707 INFO L399 AbstractCegarLoop]: === Iteration 54 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:41,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:41,708 INFO L85 PathProgramCache]: Analyzing trace with hash -516231061, now seen corresponding path program 51 times [2024-09-12 21:43:41,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:41,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134157895] [2024-09-12 21:43:41,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:41,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:41,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:42,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 21:43:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 21:43:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 21:43:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 21:43:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 21:43:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 21:43:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 21:43:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 21:43:42,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 21:43:42,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 21:43:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 21:43:42,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 21:43:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 21:43:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 21:43:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 21:43:42,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 21:43:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 21:43:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 21:43:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 21:43:42,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-09-12 21:43:42,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-09-12 21:43:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 21:43:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-09-12 21:43:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,827 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 21:43:42,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 21:43:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 21:43:42,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:42,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 1003 proven. 427 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-09-12 21:43:42,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:42,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134157895] [2024-09-12 21:43:42,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134157895] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:42,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858457275] [2024-09-12 21:43:42,836 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:43:42,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:42,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:42,837 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:42,838 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-09-12 21:43:42,931 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2024-09-12 21:43:42,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:43:42,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-09-12 21:43:42,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:44,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 1079 proven. 351 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-09-12 21:43:44,035 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:44,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 1079 proven. 351 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-09-12 21:43:44,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858457275] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:44,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:44,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57, 57] total 86 [2024-09-12 21:43:44,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353947944] [2024-09-12 21:43:44,935 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:44,935 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2024-09-12 21:43:44,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:44,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2024-09-12 21:43:44,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1657, Invalid=5653, Unknown=0, NotChecked=0, Total=7310 [2024-09-12 21:43:44,936 INFO L87 Difference]: Start difference. First operand 223 states and 224 transitions. Second operand has 86 states, 86 states have (on average 1.7209302325581395) internal successors, (148), 86 states have internal predecessors, (148), 55 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-09-12 21:43:45,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:45,253 INFO L93 Difference]: Finished difference Result 313 states and 341 transitions. [2024-09-12 21:43:45,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-09-12 21:43:45,254 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 86 states have (on average 1.7209302325581395) internal successors, (148), 86 states have internal predecessors, (148), 55 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Word has length 220 [2024-09-12 21:43:45,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:45,255 INFO L225 Difference]: With dead ends: 313 [2024-09-12 21:43:45,255 INFO L226 Difference]: Without dead ends: 224 [2024-09-12 21:43:45,256 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 550 GetRequests, 413 SyntacticMatches, 53 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4706 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1657, Invalid=5653, Unknown=0, NotChecked=0, Total=7310 [2024-09-12 21:43:45,256 INFO L434 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:45,256 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 412 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 21:43:45,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-09-12 21:43:45,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2024-09-12 21:43:45,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 166 states have (on average 1.0120481927710843) internal successors, (168), 167 states have internal predecessors, (168), 29 states have call successors, (29), 29 states have call predecessors, (29), 28 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 21:43:45,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 225 transitions. [2024-09-12 21:43:45,276 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 225 transitions. Word has length 220 [2024-09-12 21:43:45,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:45,276 INFO L474 AbstractCegarLoop]: Abstraction has 224 states and 225 transitions. [2024-09-12 21:43:45,276 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 1.7209302325581395) internal successors, (148), 86 states have internal predecessors, (148), 55 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-09-12 21:43:45,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:45,276 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 225 transitions. [2024-09-12 21:43:45,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-09-12 21:43:45,277 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:45,277 INFO L216 NwaCegarLoop]: trace histogram [27, 27, 27, 27, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:45,296 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2024-09-12 21:43:45,481 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,53 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:45,482 INFO L399 AbstractCegarLoop]: === Iteration 55 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:45,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:45,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1304211081, now seen corresponding path program 52 times [2024-09-12 21:43:45,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:45,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205997448] [2024-09-12 21:43:45,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:45,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,119 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,120 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 21:43:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,121 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 21:43:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,121 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 21:43:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,122 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 21:43:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,123 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 21:43:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,124 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 21:43:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 21:43:46,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,126 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 21:43:46,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,127 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 21:43:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,128 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 21:43:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,129 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 21:43:46,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,130 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 21:43:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,130 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 21:43:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,131 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 21:43:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,132 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 21:43:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 21:43:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-09-12 21:43:46,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 21:43:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 21:43:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,137 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 21:43:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 21:43:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 21:43:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-09-12 21:43:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,141 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 21:43:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 21:43:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-09-12 21:43:46,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:46,144 INFO L134 CoverageAnalysis]: Checked inductivity of 2757 backedges. 403 proven. 1054 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-09-12 21:43:46,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:46,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205997448] [2024-09-12 21:43:46,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205997448] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:46,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033421929] [2024-09-12 21:43:46,144 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:43:46,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:46,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:46,145 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:46,146 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-09-12 21:43:46,227 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:43:46,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:43:46,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-09-12 21:43:46,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:46,355 INFO L134 CoverageAnalysis]: Checked inductivity of 2757 backedges. 430 proven. 1027 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-09-12 21:43:46,355 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:46,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2757 backedges. 430 proven. 1027 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-09-12 21:43:46,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033421929] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:46,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:46,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 35 [2024-09-12 21:43:46,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844817924] [2024-09-12 21:43:46,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:46,991 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-09-12 21:43:46,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:46,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-09-12 21:43:46,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=448, Invalid=742, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 21:43:46,992 INFO L87 Difference]: Start difference. First operand 224 states and 225 transitions. Second operand has 35 states, 35 states have (on average 2.6857142857142855) internal successors, (94), 33 states have internal predecessors, (94), 28 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-09-12 21:43:47,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:47,136 INFO L93 Difference]: Finished difference Result 237 states and 239 transitions. [2024-09-12 21:43:47,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-12 21:43:47,137 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.6857142857142855) internal successors, (94), 33 states have internal predecessors, (94), 28 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Word has length 221 [2024-09-12 21:43:47,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:47,138 INFO L225 Difference]: With dead ends: 237 [2024-09-12 21:43:47,138 INFO L226 Difference]: Without dead ends: 235 [2024-09-12 21:43:47,138 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 466 SyntacticMatches, 54 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1047 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=454, Invalid=806, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 21:43:47,139 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:47,139 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 102 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:43:47,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-09-12 21:43:47,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 231. [2024-09-12 21:43:47,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 171 states have (on average 1.0116959064327486) internal successors, (173), 172 states have internal predecessors, (173), 30 states have call successors, (30), 30 states have call predecessors, (30), 29 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 21:43:47,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 232 transitions. [2024-09-12 21:43:47,158 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 232 transitions. Word has length 221 [2024-09-12 21:43:47,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:47,158 INFO L474 AbstractCegarLoop]: Abstraction has 231 states and 232 transitions. [2024-09-12 21:43:47,158 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.6857142857142855) internal successors, (94), 33 states have internal predecessors, (94), 28 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-09-12 21:43:47,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:47,159 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 232 transitions. [2024-09-12 21:43:47,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-09-12 21:43:47,160 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:47,160 INFO L216 NwaCegarLoop]: trace histogram [28, 28, 28, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:47,177 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2024-09-12 21:43:47,360 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2024-09-12 21:43:47,361 INFO L399 AbstractCegarLoop]: === Iteration 56 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:47,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:47,361 INFO L85 PathProgramCache]: Analyzing trace with hash -906045492, now seen corresponding path program 53 times [2024-09-12 21:43:47,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:47,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094909723] [2024-09-12 21:43:47,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:47,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:47,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 21:43:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 21:43:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,563 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 21:43:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,563 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 21:43:48,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 21:43:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 21:43:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 21:43:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 21:43:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 21:43:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 21:43:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 21:43:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 21:43:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,573 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 21:43:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 21:43:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 21:43:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 21:43:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-09-12 21:43:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,578 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 21:43:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,578 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 21:43:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 21:43:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 21:43:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 21:43:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,582 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-09-12 21:43:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,583 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 21:43:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 21:43:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-09-12 21:43:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-09-12 21:43:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:48,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2943 backedges. 1082 proven. 457 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-09-12 21:43:48,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:48,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094909723] [2024-09-12 21:43:48,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094909723] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:48,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086504765] [2024-09-12 21:43:48,587 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:43:48,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:48,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:48,588 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:48,589 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-09-12 21:43:48,684 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 28 check-sat command(s) [2024-09-12 21:43:48,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:43:48,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-09-12 21:43:48,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:49,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2943 backedges. 1161 proven. 378 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-09-12 21:43:49,852 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:50,794 INFO L134 CoverageAnalysis]: Checked inductivity of 2943 backedges. 1161 proven. 378 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-09-12 21:43:50,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086504765] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:50,794 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:50,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 59, 59] total 89 [2024-09-12 21:43:50,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433459156] [2024-09-12 21:43:50,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:50,795 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2024-09-12 21:43:50,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:50,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2024-09-12 21:43:50,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1774, Invalid=6058, Unknown=0, NotChecked=0, Total=7832 [2024-09-12 21:43:50,796 INFO L87 Difference]: Start difference. First operand 231 states and 232 transitions. Second operand has 89 states, 89 states have (on average 1.7191011235955056) internal successors, (153), 89 states have internal predecessors, (153), 57 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-09-12 21:43:51,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:51,097 INFO L93 Difference]: Finished difference Result 324 states and 353 transitions. [2024-09-12 21:43:51,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-09-12 21:43:51,098 INFO L78 Accepts]: Start accepts. Automaton has has 89 states, 89 states have (on average 1.7191011235955056) internal successors, (153), 89 states have internal predecessors, (153), 57 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Word has length 228 [2024-09-12 21:43:51,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:51,100 INFO L225 Difference]: With dead ends: 324 [2024-09-12 21:43:51,100 INFO L226 Difference]: Without dead ends: 232 [2024-09-12 21:43:51,101 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 428 SyntacticMatches, 55 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5049 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1774, Invalid=6058, Unknown=0, NotChecked=0, Total=7832 [2024-09-12 21:43:51,102 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:51,102 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 495 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:43:51,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-09-12 21:43:51,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2024-09-12 21:43:51,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 172 states have (on average 1.0116279069767442) internal successors, (174), 173 states have internal predecessors, (174), 30 states have call successors, (30), 30 states have call predecessors, (30), 29 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 21:43:51,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 233 transitions. [2024-09-12 21:43:51,131 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 233 transitions. Word has length 228 [2024-09-12 21:43:51,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:51,131 INFO L474 AbstractCegarLoop]: Abstraction has 232 states and 233 transitions. [2024-09-12 21:43:51,131 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 89 states have (on average 1.7191011235955056) internal successors, (153), 89 states have internal predecessors, (153), 57 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-09-12 21:43:51,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:51,132 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 233 transitions. [2024-09-12 21:43:51,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-09-12 21:43:51,133 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:51,133 INFO L216 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:51,150 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2024-09-12 21:43:51,333 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,55 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:51,334 INFO L399 AbstractCegarLoop]: === Iteration 57 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:51,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:51,334 INFO L85 PathProgramCache]: Analyzing trace with hash -196383528, now seen corresponding path program 54 times [2024-09-12 21:43:51,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:51,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22467565] [2024-09-12 21:43:51,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:51,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 21:43:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,110 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 21:43:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 21:43:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 21:43:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,112 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 21:43:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,113 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 21:43:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,114 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 21:43:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 21:43:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 21:43:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 21:43:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,117 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 21:43:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,118 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 21:43:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,119 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 21:43:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,119 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 21:43:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,120 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 21:43:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,121 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 21:43:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,122 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-09-12 21:43:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,123 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 21:43:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,124 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 21:43:52,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 21:43:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-09-12 21:43:52,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,126 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 21:43:52,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,127 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-09-12 21:43:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,128 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-09-12 21:43:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,129 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 21:43:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,130 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 21:43:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,131 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 21:43:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:52,132 INFO L134 CoverageAnalysis]: Checked inductivity of 2971 backedges. 432 proven. 1135 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-09-12 21:43:52,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:52,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22467565] [2024-09-12 21:43:52,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22467565] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:52,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959141920] [2024-09-12 21:43:52,132 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:43:52,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:52,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:52,133 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:52,134 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-09-12 21:43:52,231 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 28 check-sat command(s) [2024-09-12 21:43:52,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:43:52,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-09-12 21:43:52,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:52,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2971 backedges. 460 proven. 1107 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-09-12 21:43:52,364 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:53,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2971 backedges. 460 proven. 1107 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-09-12 21:43:53,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959141920] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:53,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:53,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 36 [2024-09-12 21:43:53,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938083517] [2024-09-12 21:43:53,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:53,046 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-12 21:43:53,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:53,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-12 21:43:53,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=478, Invalid=782, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 21:43:53,047 INFO L87 Difference]: Start difference. First operand 232 states and 233 transitions. Second operand has 36 states, 36 states have (on average 2.6944444444444446) internal successors, (97), 34 states have internal predecessors, (97), 29 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 21:43:53,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:53,190 INFO L93 Difference]: Finished difference Result 245 states and 247 transitions. [2024-09-12 21:43:53,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-09-12 21:43:53,190 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.6944444444444446) internal successors, (97), 34 states have internal predecessors, (97), 29 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Word has length 229 [2024-09-12 21:43:53,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:53,192 INFO L225 Difference]: With dead ends: 245 [2024-09-12 21:43:53,192 INFO L226 Difference]: Without dead ends: 243 [2024-09-12 21:43:53,192 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 483 SyntacticMatches, 56 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1114 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=484, Invalid=848, Unknown=0, NotChecked=0, Total=1332 [2024-09-12 21:43:53,193 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:53,193 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 86 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:43:53,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-09-12 21:43:53,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 239. [2024-09-12 21:43:53,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 177 states have (on average 1.0112994350282485) internal successors, (179), 178 states have internal predecessors, (179), 31 states have call successors, (31), 31 states have call predecessors, (31), 30 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-09-12 21:43:53,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 240 transitions. [2024-09-12 21:43:53,213 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 240 transitions. Word has length 229 [2024-09-12 21:43:53,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:53,213 INFO L474 AbstractCegarLoop]: Abstraction has 239 states and 240 transitions. [2024-09-12 21:43:53,213 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.6944444444444446) internal successors, (97), 34 states have internal predecessors, (97), 29 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 21:43:53,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:53,214 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 240 transitions. [2024-09-12 21:43:53,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-09-12 21:43:53,215 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:53,215 INFO L216 NwaCegarLoop]: trace histogram [29, 29, 29, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:53,231 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2024-09-12 21:43:53,415 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,56 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:53,416 INFO L399 AbstractCegarLoop]: === Iteration 58 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:53,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:53,416 INFO L85 PathProgramCache]: Analyzing trace with hash -888906421, now seen corresponding path program 55 times [2024-09-12 21:43:53,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:53,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615665153] [2024-09-12 21:43:53,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:53,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:53,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 21:43:54,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 21:43:54,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 21:43:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 21:43:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 21:43:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 21:43:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 21:43:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 21:43:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 21:43:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 21:43:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 21:43:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 21:43:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 21:43:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 21:43:54,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 21:43:54,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 21:43:54,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,697 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-09-12 21:43:54,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 21:43:54,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 21:43:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 21:43:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-09-12 21:43:54,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,702 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 21:43:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-09-12 21:43:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-09-12 21:43:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 21:43:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 21:43:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 21:43:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,707 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-09-12 21:43:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,708 INFO L134 CoverageAnalysis]: Checked inductivity of 3164 backedges. 1164 proven. 488 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-09-12 21:43:54,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:54,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615665153] [2024-09-12 21:43:54,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615665153] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:54,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856255073] [2024-09-12 21:43:54,708 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 21:43:54,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:54,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:54,709 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:54,710 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-09-12 21:43:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:54,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-09-12 21:43:54,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:56,066 INFO L134 CoverageAnalysis]: Checked inductivity of 3164 backedges. 1246 proven. 406 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-09-12 21:43:56,066 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:57,084 INFO L134 CoverageAnalysis]: Checked inductivity of 3164 backedges. 1246 proven. 406 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-09-12 21:43:57,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856255073] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:57,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:57,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61, 61] total 92 [2024-09-12 21:43:57,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72100078] [2024-09-12 21:43:57,085 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:57,085 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2024-09-12 21:43:57,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:57,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2024-09-12 21:43:57,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1895, Invalid=6477, Unknown=0, NotChecked=0, Total=8372 [2024-09-12 21:43:57,086 INFO L87 Difference]: Start difference. First operand 239 states and 240 transitions. Second operand has 92 states, 92 states have (on average 1.7173913043478262) internal successors, (158), 92 states have internal predecessors, (158), 59 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-09-12 21:43:57,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:57,457 INFO L93 Difference]: Finished difference Result 335 states and 365 transitions. [2024-09-12 21:43:57,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-09-12 21:43:57,457 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 92 states have (on average 1.7173913043478262) internal successors, (158), 92 states have internal predecessors, (158), 59 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Word has length 236 [2024-09-12 21:43:57,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:57,459 INFO L225 Difference]: With dead ends: 335 [2024-09-12 21:43:57,459 INFO L226 Difference]: Without dead ends: 240 [2024-09-12 21:43:57,460 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 590 GetRequests, 443 SyntacticMatches, 57 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5404 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1895, Invalid=6477, Unknown=0, NotChecked=0, Total=8372 [2024-09-12 21:43:57,460 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:57,460 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 791 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 21:43:57,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-09-12 21:43:57,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2024-09-12 21:43:57,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 178 states have (on average 1.0112359550561798) internal successors, (180), 179 states have internal predecessors, (180), 31 states have call successors, (31), 31 states have call predecessors, (31), 30 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-09-12 21:43:57,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 241 transitions. [2024-09-12 21:43:57,482 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 241 transitions. Word has length 236 [2024-09-12 21:43:57,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:57,482 INFO L474 AbstractCegarLoop]: Abstraction has 240 states and 241 transitions. [2024-09-12 21:43:57,482 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 92 states have (on average 1.7173913043478262) internal successors, (158), 92 states have internal predecessors, (158), 59 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-09-12 21:43:57,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:57,483 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 241 transitions. [2024-09-12 21:43:57,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-09-12 21:43:57,484 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:57,484 INFO L216 NwaCegarLoop]: trace histogram [29, 29, 29, 29, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:57,501 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2024-09-12 21:43:57,684 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-09-12 21:43:57,685 INFO L399 AbstractCegarLoop]: === Iteration 59 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:57,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:57,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1323227561, now seen corresponding path program 56 times [2024-09-12 21:43:57,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:57,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851760780] [2024-09-12 21:43:57,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:57,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:43:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 21:43:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 21:43:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 21:43:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 21:43:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 21:43:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 21:43:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 21:43:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 21:43:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 21:43:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 21:43:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 21:43:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 21:43:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 21:43:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 21:43:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-09-12 21:43:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 21:43:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 21:43:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-09-12 21:43:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 21:43:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 21:43:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-09-12 21:43:58,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-12 21:43:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-09-12 21:43:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-09-12 21:43:58,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 21:43:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-09-12 21:43:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 21:43:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-09-12 21:43:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:43:58,431 INFO L134 CoverageAnalysis]: Checked inductivity of 3193 backedges. 462 proven. 1219 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-09-12 21:43:58,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:43:58,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851760780] [2024-09-12 21:43:58,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851760780] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:43:58,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967089833] [2024-09-12 21:43:58,431 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:43:58,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:43:58,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:43:58,435 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:43:58,436 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-09-12 21:43:58,524 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:43:58,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:43:58,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-09-12 21:43:58,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:43:58,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3193 backedges. 491 proven. 1190 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-09-12 21:43:58,689 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:43:59,431 INFO L134 CoverageAnalysis]: Checked inductivity of 3193 backedges. 491 proven. 1190 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-09-12 21:43:59,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967089833] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:43:59,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:43:59,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 37 [2024-09-12 21:43:59,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533921335] [2024-09-12 21:43:59,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:43:59,432 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-09-12 21:43:59,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:43:59,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-09-12 21:43:59,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=509, Invalid=823, Unknown=0, NotChecked=0, Total=1332 [2024-09-12 21:43:59,433 INFO L87 Difference]: Start difference. First operand 240 states and 241 transitions. Second operand has 37 states, 37 states have (on average 2.7027027027027026) internal successors, (100), 35 states have internal predecessors, (100), 30 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 21:43:59,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:43:59,590 INFO L93 Difference]: Finished difference Result 253 states and 255 transitions. [2024-09-12 21:43:59,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-09-12 21:43:59,590 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.7027027027027026) internal successors, (100), 35 states have internal predecessors, (100), 30 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Word has length 237 [2024-09-12 21:43:59,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:43:59,591 INFO L225 Difference]: With dead ends: 253 [2024-09-12 21:43:59,591 INFO L226 Difference]: Without dead ends: 251 [2024-09-12 21:43:59,592 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 498 SyntacticMatches, 60 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1243 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=515, Invalid=891, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 21:43:59,592 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:43:59,592 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 125 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:43:59,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-09-12 21:43:59,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 247. [2024-09-12 21:43:59,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 183 states have (on average 1.010928961748634) internal successors, (185), 184 states have internal predecessors, (185), 32 states have call successors, (32), 32 states have call predecessors, (32), 31 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 21:43:59,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 248 transitions. [2024-09-12 21:43:59,613 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 248 transitions. Word has length 237 [2024-09-12 21:43:59,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:43:59,613 INFO L474 AbstractCegarLoop]: Abstraction has 247 states and 248 transitions. [2024-09-12 21:43:59,613 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.7027027027027026) internal successors, (100), 35 states have internal predecessors, (100), 30 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 21:43:59,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:59,614 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 248 transitions. [2024-09-12 21:43:59,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-09-12 21:43:59,615 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:43:59,615 INFO L216 NwaCegarLoop]: trace histogram [30, 30, 30, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:43:59,630 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2024-09-12 21:43:59,815 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-09-12 21:43:59,816 INFO L399 AbstractCegarLoop]: === Iteration 60 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:43:59,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:43:59,816 INFO L85 PathProgramCache]: Analyzing trace with hash 649185004, now seen corresponding path program 57 times [2024-09-12 21:43:59,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:43:59,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785489460] [2024-09-12 21:43:59,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:43:59,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:43:59,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:44:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,247 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 21:44:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,248 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 21:44:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,249 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 21:44:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,250 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 21:44:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,251 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 21:44:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 21:44:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 21:44:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,253 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 21:44:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,254 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 21:44:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 21:44:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,256 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 21:44:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,258 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 21:44:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,258 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 21:44:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,259 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 21:44:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-09-12 21:44:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,261 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 21:44:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,262 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 21:44:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,263 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-09-12 21:44:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,264 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 21:44:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,264 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 21:44:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,265 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-09-12 21:44:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,266 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-12 21:44:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,267 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-09-12 21:44:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,268 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-09-12 21:44:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,269 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 21:44:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,270 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-09-12 21:44:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,271 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 21:44:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,271 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-09-12 21:44:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 21:44:01,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:01,273 INFO L134 CoverageAnalysis]: Checked inductivity of 3393 backedges. 1249 proven. 520 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-09-12 21:44:01,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:44:01,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785489460] [2024-09-12 21:44:01,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785489460] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:44:01,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115646845] [2024-09-12 21:44:01,274 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:44:01,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:01,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:44:01,275 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:44:01,276 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-09-12 21:44:01,379 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 30 check-sat command(s) [2024-09-12 21:44:01,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:44:01,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-09-12 21:44:01,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:44:02,735 INFO L134 CoverageAnalysis]: Checked inductivity of 3393 backedges. 1334 proven. 435 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-09-12 21:44:02,735 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:44:03,815 INFO L134 CoverageAnalysis]: Checked inductivity of 3393 backedges. 1334 proven. 435 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-09-12 21:44:03,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115646845] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:44:03,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:44:03,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63, 63] total 95 [2024-09-12 21:44:03,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548568027] [2024-09-12 21:44:03,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:44:03,817 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2024-09-12 21:44:03,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:44:03,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2024-09-12 21:44:03,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2020, Invalid=6910, Unknown=0, NotChecked=0, Total=8930 [2024-09-12 21:44:03,818 INFO L87 Difference]: Start difference. First operand 247 states and 248 transitions. Second operand has 95 states, 95 states have (on average 1.7157894736842105) internal successors, (163), 95 states have internal predecessors, (163), 61 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-09-12 21:44:04,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:44:04,322 INFO L93 Difference]: Finished difference Result 346 states and 377 transitions. [2024-09-12 21:44:04,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-09-12 21:44:04,323 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 1.7157894736842105) internal successors, (163), 95 states have internal predecessors, (163), 61 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) Word has length 244 [2024-09-12 21:44:04,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:44:04,325 INFO L225 Difference]: With dead ends: 346 [2024-09-12 21:44:04,325 INFO L226 Difference]: Without dead ends: 248 [2024-09-12 21:44:04,326 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 458 SyntacticMatches, 59 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5771 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2020, Invalid=6910, Unknown=0, NotChecked=0, Total=8930 [2024-09-12 21:44:04,326 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 21:44:04,326 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 770 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 21:44:04,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-09-12 21:44:04,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2024-09-12 21:44:04,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 184 states have (on average 1.0108695652173914) internal successors, (186), 185 states have internal predecessors, (186), 32 states have call successors, (32), 32 states have call predecessors, (32), 31 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 21:44:04,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 249 transitions. [2024-09-12 21:44:04,347 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 249 transitions. Word has length 244 [2024-09-12 21:44:04,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:44:04,347 INFO L474 AbstractCegarLoop]: Abstraction has 248 states and 249 transitions. [2024-09-12 21:44:04,347 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 1.7157894736842105) internal successors, (163), 95 states have internal predecessors, (163), 61 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-09-12 21:44:04,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:04,347 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 249 transitions. [2024-09-12 21:44:04,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2024-09-12 21:44:04,349 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:44:04,349 INFO L216 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:44:04,365 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2024-09-12 21:44:04,549 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-09-12 21:44:04,549 INFO L399 AbstractCegarLoop]: === Iteration 61 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:44:04,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:04,550 INFO L85 PathProgramCache]: Analyzing trace with hash -550845448, now seen corresponding path program 58 times [2024-09-12 21:44:04,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:44:04,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474996220] [2024-09-12 21:44:04,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:44:04,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:44:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:44:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 21:44:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,443 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 21:44:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 21:44:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 21:44:05,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 21:44:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 21:44:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,449 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 21:44:05,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 21:44:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-09-12 21:44:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 21:44:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 21:44:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 21:44:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 21:44:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 21:44:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-09-12 21:44:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 21:44:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-09-12 21:44:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 21:44:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-09-12 21:44:05,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 21:44:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,466 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-09-12 21:44:05,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 21:44:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-09-12 21:44:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,469 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-09-12 21:44:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,471 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-09-12 21:44:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,472 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-09-12 21:44:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-09-12 21:44:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,474 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-09-12 21:44:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-09-12 21:44:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:05,477 INFO L134 CoverageAnalysis]: Checked inductivity of 3423 backedges. 493 proven. 1306 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-09-12 21:44:05,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:44:05,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474996220] [2024-09-12 21:44:05,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474996220] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:44:05,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510822949] [2024-09-12 21:44:05,477 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:44:05,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:05,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:44:05,479 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:44:05,481 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-09-12 21:44:05,579 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:44:05,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:44:05,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-09-12 21:44:05,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:44:05,718 INFO L134 CoverageAnalysis]: Checked inductivity of 3423 backedges. 523 proven. 1276 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-09-12 21:44:05,718 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:44:06,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3423 backedges. 523 proven. 1276 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-09-12 21:44:06,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510822949] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:44:06,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:44:06,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 38 [2024-09-12 21:44:06,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072201078] [2024-09-12 21:44:06,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:44:06,496 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-09-12 21:44:06,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:44:06,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-09-12 21:44:06,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=541, Invalid=865, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 21:44:06,497 INFO L87 Difference]: Start difference. First operand 248 states and 249 transitions. Second operand has 38 states, 38 states have (on average 2.710526315789474) internal successors, (103), 36 states have internal predecessors, (103), 31 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-09-12 21:44:06,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:44:06,663 INFO L93 Difference]: Finished difference Result 261 states and 263 transitions. [2024-09-12 21:44:06,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-12 21:44:06,664 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.710526315789474) internal successors, (103), 36 states have internal predecessors, (103), 31 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Word has length 245 [2024-09-12 21:44:06,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:44:06,665 INFO L225 Difference]: With dead ends: 261 [2024-09-12 21:44:06,665 INFO L226 Difference]: Without dead ends: 259 [2024-09-12 21:44:06,666 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 517 SyntacticMatches, 60 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1254 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=547, Invalid=935, Unknown=0, NotChecked=0, Total=1482 [2024-09-12 21:44:06,666 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:44:06,666 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 112 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:44:06,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-09-12 21:44:06,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 255. [2024-09-12 21:44:06,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 189 states have (on average 1.0105820105820107) internal successors, (191), 190 states have internal predecessors, (191), 33 states have call successors, (33), 33 states have call predecessors, (33), 32 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-09-12 21:44:06,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 256 transitions. [2024-09-12 21:44:06,689 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 256 transitions. Word has length 245 [2024-09-12 21:44:06,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:44:06,689 INFO L474 AbstractCegarLoop]: Abstraction has 255 states and 256 transitions. [2024-09-12 21:44:06,689 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.710526315789474) internal successors, (103), 36 states have internal predecessors, (103), 31 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-09-12 21:44:06,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:06,690 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 256 transitions. [2024-09-12 21:44:06,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-09-12 21:44:06,691 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:44:06,691 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 31, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:44:06,708 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2024-09-12 21:44:06,891 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,60 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:06,891 INFO L399 AbstractCegarLoop]: === Iteration 62 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:44:06,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:06,892 INFO L85 PathProgramCache]: Analyzing trace with hash 967492139, now seen corresponding path program 59 times [2024-09-12 21:44:06,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:44:06,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756311678] [2024-09-12 21:44:06,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:44:06,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:44:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:44:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,300 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 21:44:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,301 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 21:44:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,302 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 21:44:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,303 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 21:44:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,304 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 21:44:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 21:44:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,306 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 21:44:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,307 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 21:44:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,308 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-09-12 21:44:08,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,309 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 21:44:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,309 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 21:44:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 21:44:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 21:44:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,312 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 21:44:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-09-12 21:44:08,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,314 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 21:44:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-09-12 21:44:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 21:44:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-09-12 21:44:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 21:44:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-09-12 21:44:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 21:44:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,320 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-09-12 21:44:08,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-09-12 21:44:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-09-12 21:44:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-09-12 21:44:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-09-12 21:44:08,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,324 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-09-12 21:44:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-09-12 21:44:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-12 21:44:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:08,327 INFO L134 CoverageAnalysis]: Checked inductivity of 3630 backedges. 1337 proven. 553 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-09-12 21:44:08,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:44:08,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756311678] [2024-09-12 21:44:08,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756311678] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:44:08,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768837931] [2024-09-12 21:44:08,328 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:44:08,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:08,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:44:08,329 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:44:08,329 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-09-12 21:44:08,432 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 31 check-sat command(s) [2024-09-12 21:44:08,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:44:08,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-09-12 21:44:08,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:44:09,807 INFO L134 CoverageAnalysis]: Checked inductivity of 3630 backedges. 1425 proven. 465 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-09-12 21:44:09,807 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:44:10,940 INFO L134 CoverageAnalysis]: Checked inductivity of 3630 backedges. 1425 proven. 465 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-09-12 21:44:10,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768837931] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:44:10,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:44:10,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 98 [2024-09-12 21:44:10,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51978405] [2024-09-12 21:44:10,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:44:10,941 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2024-09-12 21:44:10,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:44:10,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2024-09-12 21:44:10,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2149, Invalid=7357, Unknown=0, NotChecked=0, Total=9506 [2024-09-12 21:44:10,943 INFO L87 Difference]: Start difference. First operand 255 states and 256 transitions. Second operand has 98 states, 98 states have (on average 1.7142857142857142) internal successors, (168), 98 states have internal predecessors, (168), 63 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-09-12 21:44:11,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:44:11,347 INFO L93 Difference]: Finished difference Result 357 states and 389 transitions. [2024-09-12 21:44:11,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2024-09-12 21:44:11,347 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 1.7142857142857142) internal successors, (168), 98 states have internal predecessors, (168), 63 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Word has length 252 [2024-09-12 21:44:11,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:44:11,350 INFO L225 Difference]: With dead ends: 357 [2024-09-12 21:44:11,350 INFO L226 Difference]: Without dead ends: 256 [2024-09-12 21:44:11,351 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 473 SyntacticMatches, 61 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6150 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2149, Invalid=7357, Unknown=0, NotChecked=0, Total=9506 [2024-09-12 21:44:11,351 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 21:44:11,351 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 464 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 21:44:11,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-09-12 21:44:11,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2024-09-12 21:44:11,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 190 states have (on average 1.0105263157894737) internal successors, (192), 191 states have internal predecessors, (192), 33 states have call successors, (33), 33 states have call predecessors, (33), 32 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-09-12 21:44:11,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 257 transitions. [2024-09-12 21:44:11,375 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 257 transitions. Word has length 252 [2024-09-12 21:44:11,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:44:11,375 INFO L474 AbstractCegarLoop]: Abstraction has 256 states and 257 transitions. [2024-09-12 21:44:11,375 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 1.7142857142857142) internal successors, (168), 98 states have internal predecessors, (168), 63 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-09-12 21:44:11,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:11,376 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 257 transitions. [2024-09-12 21:44:11,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-09-12 21:44:11,377 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:44:11,377 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:44:11,395 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2024-09-12 21:44:11,577 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2024-09-12 21:44:11,579 INFO L399 AbstractCegarLoop]: === Iteration 63 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:44:11,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:11,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1895042249, now seen corresponding path program 60 times [2024-09-12 21:44:11,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:44:11,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212157561] [2024-09-12 21:44:11,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:44:11,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:44:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:44:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 21:44:12,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 21:44:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 21:44:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-09-12 21:44:12,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-09-12 21:44:12,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 21:44:12,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 21:44:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 21:44:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 21:44:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 21:44:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 21:44:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-09-12 21:44:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 21:44:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 21:44:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 21:44:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 21:44:12,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-09-12 21:44:12,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 21:44:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-09-12 21:44:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-09-12 21:44:12,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 21:44:12,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 21:44:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 21:44:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-09-12 21:44:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-09-12 21:44:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 21:44:12,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-09-12 21:44:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 21:44:12,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,434 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-09-12 21:44:12,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 21:44:12,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:12,437 INFO L134 CoverageAnalysis]: Checked inductivity of 3661 backedges. 525 proven. 1396 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-09-12 21:44:12,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:44:12,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212157561] [2024-09-12 21:44:12,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212157561] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:44:12,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031707869] [2024-09-12 21:44:12,437 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:44:12,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:12,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:44:12,439 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:44:12,441 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2024-09-12 21:44:12,559 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 31 check-sat command(s) [2024-09-12 21:44:12,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:44:12,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-09-12 21:44:12,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:44:12,709 INFO L134 CoverageAnalysis]: Checked inductivity of 3661 backedges. 556 proven. 1365 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-09-12 21:44:12,709 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:44:13,519 INFO L134 CoverageAnalysis]: Checked inductivity of 3661 backedges. 556 proven. 1365 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-09-12 21:44:13,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031707869] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:44:13,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:44:13,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36, 36] total 39 [2024-09-12 21:44:13,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637071712] [2024-09-12 21:44:13,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:44:13,520 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-09-12 21:44:13,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:44:13,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-09-12 21:44:13,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=574, Invalid=908, Unknown=0, NotChecked=0, Total=1482 [2024-09-12 21:44:13,520 INFO L87 Difference]: Start difference. First operand 256 states and 257 transitions. Second operand has 39 states, 39 states have (on average 2.717948717948718) internal successors, (106), 37 states have internal predecessors, (106), 32 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 21:44:13,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:44:13,687 INFO L93 Difference]: Finished difference Result 269 states and 271 transitions. [2024-09-12 21:44:13,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-09-12 21:44:13,687 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 2.717948717948718) internal successors, (106), 37 states have internal predecessors, (106), 32 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Word has length 253 [2024-09-12 21:44:13,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:44:13,689 INFO L225 Difference]: With dead ends: 269 [2024-09-12 21:44:13,689 INFO L226 Difference]: Without dead ends: 267 [2024-09-12 21:44:13,689 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 634 GetRequests, 534 SyntacticMatches, 62 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1327 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=580, Invalid=980, Unknown=0, NotChecked=0, Total=1560 [2024-09-12 21:44:13,690 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:44:13,690 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 113 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:44:13,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2024-09-12 21:44:13,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 263. [2024-09-12 21:44:13,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 195 states have (on average 1.0102564102564102) internal successors, (197), 196 states have internal predecessors, (197), 34 states have call successors, (34), 34 states have call predecessors, (34), 33 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2024-09-12 21:44:13,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 264 transitions. [2024-09-12 21:44:13,713 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 264 transitions. Word has length 253 [2024-09-12 21:44:13,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:44:13,713 INFO L474 AbstractCegarLoop]: Abstraction has 263 states and 264 transitions. [2024-09-12 21:44:13,714 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.717948717948718) internal successors, (106), 37 states have internal predecessors, (106), 32 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 21:44:13,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:13,714 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 264 transitions. [2024-09-12 21:44:13,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-09-12 21:44:13,715 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:44:13,715 INFO L216 NwaCegarLoop]: trace histogram [32, 32, 32, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:44:13,732 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2024-09-12 21:44:13,916 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,62 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:13,916 INFO L399 AbstractCegarLoop]: === Iteration 64 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:44:13,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:13,916 INFO L85 PathProgramCache]: Analyzing trace with hash 38845964, now seen corresponding path program 61 times [2024-09-12 21:44:13,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:44:13,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130526499] [2024-09-12 21:44:13,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:44:13,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:44:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,443 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:44:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 21:44:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 21:44:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 21:44:15,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-09-12 21:44:15,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-09-12 21:44:15,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 21:44:15,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,449 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 21:44:15,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 21:44:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 21:44:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,452 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 21:44:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 21:44:15,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-09-12 21:44:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 21:44:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 21:44:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 21:44:15,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 21:44:15,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-09-12 21:44:15,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 21:44:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-09-12 21:44:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-09-12 21:44:15,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 21:44:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 21:44:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 21:44:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,466 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-09-12 21:44:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-09-12 21:44:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 21:44:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-09-12 21:44:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,469 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 21:44:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-09-12 21:44:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,471 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 21:44:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,472 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-09-12 21:44:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3875 backedges. 1428 proven. 587 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-09-12 21:44:15,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:44:15,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130526499] [2024-09-12 21:44:15,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130526499] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:44:15,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210008181] [2024-09-12 21:44:15,474 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 21:44:15,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:15,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:44:15,475 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:44:15,476 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2024-09-12 21:44:15,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:15,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-09-12 21:44:15,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:44:17,123 INFO L134 CoverageAnalysis]: Checked inductivity of 3875 backedges. 1519 proven. 496 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-09-12 21:44:17,124 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:44:18,330 INFO L134 CoverageAnalysis]: Checked inductivity of 3875 backedges. 1519 proven. 496 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-09-12 21:44:18,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210008181] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:44:18,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:44:18,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67, 67] total 101 [2024-09-12 21:44:18,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653042754] [2024-09-12 21:44:18,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:44:18,331 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2024-09-12 21:44:18,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:44:18,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2024-09-12 21:44:18,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2282, Invalid=7818, Unknown=0, NotChecked=0, Total=10100 [2024-09-12 21:44:18,333 INFO L87 Difference]: Start difference. First operand 263 states and 264 transitions. Second operand has 101 states, 101 states have (on average 1.7128712871287128) internal successors, (173), 101 states have internal predecessors, (173), 65 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-09-12 21:44:18,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:44:18,906 INFO L93 Difference]: Finished difference Result 368 states and 401 transitions. [2024-09-12 21:44:18,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-09-12 21:44:18,907 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 101 states have (on average 1.7128712871287128) internal successors, (173), 101 states have internal predecessors, (173), 65 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 260 [2024-09-12 21:44:18,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:44:18,909 INFO L225 Difference]: With dead ends: 368 [2024-09-12 21:44:18,909 INFO L226 Difference]: Without dead ends: 264 [2024-09-12 21:44:18,911 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 650 GetRequests, 488 SyntacticMatches, 63 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6541 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=2282, Invalid=7818, Unknown=0, NotChecked=0, Total=10100 [2024-09-12 21:44:18,911 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 1053 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 21:44:18,913 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 672 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1053 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 21:44:18,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-09-12 21:44:18,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2024-09-12 21:44:18,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 196 states have (on average 1.010204081632653) internal successors, (198), 197 states have internal predecessors, (198), 34 states have call successors, (34), 34 states have call predecessors, (34), 33 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2024-09-12 21:44:18,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 265 transitions. [2024-09-12 21:44:18,942 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 265 transitions. Word has length 260 [2024-09-12 21:44:18,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:44:18,943 INFO L474 AbstractCegarLoop]: Abstraction has 264 states and 265 transitions. [2024-09-12 21:44:18,943 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 101 states have (on average 1.7128712871287128) internal successors, (173), 101 states have internal predecessors, (173), 65 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-09-12 21:44:18,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:18,943 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 265 transitions. [2024-09-12 21:44:18,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-09-12 21:44:18,944 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:44:18,945 INFO L216 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:44:18,961 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2024-09-12 21:44:19,145 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,63 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:19,146 INFO L399 AbstractCegarLoop]: === Iteration 65 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:44:19,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:19,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1931879192, now seen corresponding path program 62 times [2024-09-12 21:44:19,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:44:19,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175997628] [2024-09-12 21:44:19,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:44:19,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:44:19,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,136 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:44:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,137 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 21:44:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 21:44:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-09-12 21:44:20,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 21:44:20,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-09-12 21:44:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,141 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 21:44:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 21:44:20,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 21:44:20,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,144 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 21:44:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,145 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 21:44:20,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,146 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 21:44:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,146 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 21:44:20,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 21:44:20,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 21:44:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 21:44:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 21:44:20,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-09-12 21:44:20,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 21:44:20,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 21:44:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,153 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 21:44:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-09-12 21:44:20,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 21:44:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-09-12 21:44:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 21:44:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-09-12 21:44:20,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-09-12 21:44:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-09-12 21:44:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,159 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-09-12 21:44:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-09-12 21:44:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,161 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 21:44:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-09-12 21:44:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:20,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3907 backedges. 558 proven. 1489 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-09-12 21:44:20,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:44:20,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175997628] [2024-09-12 21:44:20,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175997628] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:44:20,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373277226] [2024-09-12 21:44:20,163 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:44:20,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:20,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:44:20,166 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:44:20,167 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2024-09-12 21:44:20,260 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:44:20,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:44:20,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 637 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-09-12 21:44:20,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:44:20,426 INFO L134 CoverageAnalysis]: Checked inductivity of 3907 backedges. 590 proven. 1457 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-09-12 21:44:20,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:44:21,290 INFO L134 CoverageAnalysis]: Checked inductivity of 3907 backedges. 590 proven. 1457 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-09-12 21:44:21,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373277226] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:44:21,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:44:21,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 40 [2024-09-12 21:44:21,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705536130] [2024-09-12 21:44:21,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:44:21,291 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-09-12 21:44:21,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:44:21,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-09-12 21:44:21,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=608, Invalid=952, Unknown=0, NotChecked=0, Total=1560 [2024-09-12 21:44:21,292 INFO L87 Difference]: Start difference. First operand 264 states and 265 transitions. Second operand has 40 states, 40 states have (on average 2.725) internal successors, (109), 38 states have internal predecessors, (109), 33 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-09-12 21:44:21,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:44:21,459 INFO L93 Difference]: Finished difference Result 277 states and 279 transitions. [2024-09-12 21:44:21,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-12 21:44:21,460 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.725) internal successors, (109), 38 states have internal predecessors, (109), 33 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Word has length 261 [2024-09-12 21:44:21,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:44:21,461 INFO L225 Difference]: With dead ends: 277 [2024-09-12 21:44:21,461 INFO L226 Difference]: Without dead ends: 275 [2024-09-12 21:44:21,462 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 549 SyntacticMatches, 66 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1468 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=614, Invalid=1026, Unknown=0, NotChecked=0, Total=1640 [2024-09-12 21:44:21,462 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:44:21,462 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 97 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:44:21,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2024-09-12 21:44:21,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 271. [2024-09-12 21:44:21,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 201 states have (on average 1.0099502487562189) internal successors, (203), 202 states have internal predecessors, (203), 35 states have call successors, (35), 35 states have call predecessors, (35), 34 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 21:44:21,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 272 transitions. [2024-09-12 21:44:21,480 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 272 transitions. Word has length 261 [2024-09-12 21:44:21,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:44:21,480 INFO L474 AbstractCegarLoop]: Abstraction has 271 states and 272 transitions. [2024-09-12 21:44:21,480 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.725) internal successors, (109), 38 states have internal predecessors, (109), 33 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-09-12 21:44:21,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:21,480 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 272 transitions. [2024-09-12 21:44:21,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-09-12 21:44:21,481 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:44:21,481 INFO L216 NwaCegarLoop]: trace histogram [33, 33, 33, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:44:21,493 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2024-09-12 21:44:21,681 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2024-09-12 21:44:21,681 INFO L399 AbstractCegarLoop]: === Iteration 66 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:44:21,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:21,682 INFO L85 PathProgramCache]: Analyzing trace with hash -786686197, now seen corresponding path program 63 times [2024-09-12 21:44:21,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:44:21,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308945117] [2024-09-12 21:44:21,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:44:21,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:44:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,271 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:44:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 21:44:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,273 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 21:44:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,274 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-09-12 21:44:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 21:44:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,276 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-09-12 21:44:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,277 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 21:44:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,277 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 21:44:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,278 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 21:44:23,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,279 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 21:44:23,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,280 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 21:44:23,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 21:44:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,282 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 21:44:23,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,282 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 21:44:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,283 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 21:44:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,284 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 21:44:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,285 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 21:44:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,286 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-09-12 21:44:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,288 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 21:44:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 21:44:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,290 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 21:44:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,291 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-09-12 21:44:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,292 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 21:44:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,292 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-09-12 21:44:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 21:44:23,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,294 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-09-12 21:44:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-09-12 21:44:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-09-12 21:44:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,297 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-09-12 21:44:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,298 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-09-12 21:44:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 21:44:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-09-12 21:44:23,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,300 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 21:44:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:23,302 INFO L134 CoverageAnalysis]: Checked inductivity of 4128 backedges. 1522 proven. 622 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-09-12 21:44:23,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:44:23,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308945117] [2024-09-12 21:44:23,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308945117] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:44:23,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227191844] [2024-09-12 21:44:23,302 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:44:23,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:23,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:44:23,303 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:44:23,304 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2024-09-12 21:44:23,419 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 33 check-sat command(s) [2024-09-12 21:44:23,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:44:23,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-09-12 21:44:23,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:44:24,968 INFO L134 CoverageAnalysis]: Checked inductivity of 4128 backedges. 1616 proven. 528 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-09-12 21:44:24,969 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:44:26,228 INFO L134 CoverageAnalysis]: Checked inductivity of 4128 backedges. 1616 proven. 528 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-09-12 21:44:26,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227191844] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:44:26,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:44:26,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69, 69] total 104 [2024-09-12 21:44:26,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078095287] [2024-09-12 21:44:26,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:44:26,229 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2024-09-12 21:44:26,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:44:26,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2024-09-12 21:44:26,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2419, Invalid=8293, Unknown=0, NotChecked=0, Total=10712 [2024-09-12 21:44:26,231 INFO L87 Difference]: Start difference. First operand 271 states and 272 transitions. Second operand has 104 states, 104 states have (on average 1.7115384615384615) internal successors, (178), 104 states have internal predecessors, (178), 67 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-09-12 21:44:26,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:44:26,646 INFO L93 Difference]: Finished difference Result 379 states and 413 transitions. [2024-09-12 21:44:26,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-09-12 21:44:26,647 INFO L78 Accepts]: Start accepts. Automaton has has 104 states, 104 states have (on average 1.7115384615384615) internal successors, (178), 104 states have internal predecessors, (178), 67 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) Word has length 268 [2024-09-12 21:44:26,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:44:26,648 INFO L225 Difference]: With dead ends: 379 [2024-09-12 21:44:26,648 INFO L226 Difference]: Without dead ends: 272 [2024-09-12 21:44:26,649 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 670 GetRequests, 503 SyntacticMatches, 65 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6944 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=2419, Invalid=8293, Unknown=0, NotChecked=0, Total=10712 [2024-09-12 21:44:26,649 INFO L434 NwaCegarLoop]: 74 mSDtfsCounter, 0 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 21:44:26,650 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 610 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 21:44:26,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-09-12 21:44:26,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2024-09-12 21:44:26,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 202 states have (on average 1.00990099009901) internal successors, (204), 203 states have internal predecessors, (204), 35 states have call successors, (35), 35 states have call predecessors, (35), 34 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 21:44:26,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 273 transitions. [2024-09-12 21:44:26,674 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 273 transitions. Word has length 268 [2024-09-12 21:44:26,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:44:26,675 INFO L474 AbstractCegarLoop]: Abstraction has 272 states and 273 transitions. [2024-09-12 21:44:26,675 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 104 states have (on average 1.7115384615384615) internal successors, (178), 104 states have internal predecessors, (178), 67 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-09-12 21:44:26,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:26,675 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 273 transitions. [2024-09-12 21:44:26,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-09-12 21:44:26,676 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:44:26,676 INFO L216 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:44:26,691 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2024-09-12 21:44:26,877 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,65 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:26,877 INFO L399 AbstractCegarLoop]: === Iteration 67 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:44:26,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:26,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1879984105, now seen corresponding path program 64 times [2024-09-12 21:44:26,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:44:26,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262522710] [2024-09-12 21:44:26,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:44:26,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:44:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,784 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:44:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 21:44:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 21:44:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 21:44:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,788 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 21:44:27,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 21:44:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 21:44:27,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 21:44:27,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 21:44:27,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 21:44:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 21:44:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,794 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 21:44:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 21:44:27,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 21:44:27,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 21:44:27,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 21:44:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 21:44:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 21:44:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 21:44:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-09-12 21:44:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-09-12 21:44:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 21:44:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-09-12 21:44:27,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 21:44:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 21:44:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 21:44:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 21:44:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 21:44:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-09-12 21:44:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-09-12 21:44:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-09-12 21:44:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-09-12 21:44:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-09-12 21:44:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:27,814 INFO L134 CoverageAnalysis]: Checked inductivity of 4161 backedges. 592 proven. 1585 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-09-12 21:44:27,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:44:27,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262522710] [2024-09-12 21:44:27,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262522710] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:44:27,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660519044] [2024-09-12 21:44:27,815 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:44:27,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:27,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:44:27,817 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:44:27,820 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-09-12 21:44:27,918 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:44:27,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:44:27,921 INFO L262 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-09-12 21:44:27,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:44:28,062 INFO L134 CoverageAnalysis]: Checked inductivity of 4161 backedges. 625 proven. 1552 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-09-12 21:44:28,062 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:44:28,972 INFO L134 CoverageAnalysis]: Checked inductivity of 4161 backedges. 625 proven. 1552 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-09-12 21:44:28,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660519044] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:44:28,972 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:44:28,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 41 [2024-09-12 21:44:28,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616605072] [2024-09-12 21:44:28,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:44:28,973 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-09-12 21:44:28,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:44:28,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-09-12 21:44:28,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=643, Invalid=997, Unknown=0, NotChecked=0, Total=1640 [2024-09-12 21:44:28,974 INFO L87 Difference]: Start difference. First operand 272 states and 273 transitions. Second operand has 41 states, 41 states have (on average 2.731707317073171) internal successors, (112), 39 states have internal predecessors, (112), 34 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-09-12 21:44:29,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:44:29,208 INFO L93 Difference]: Finished difference Result 285 states and 287 transitions. [2024-09-12 21:44:29,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-09-12 21:44:29,208 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 2.731707317073171) internal successors, (112), 39 states have internal predecessors, (112), 34 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Word has length 269 [2024-09-12 21:44:29,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:44:29,210 INFO L225 Difference]: With dead ends: 285 [2024-09-12 21:44:29,210 INFO L226 Difference]: Without dead ends: 283 [2024-09-12 21:44:29,210 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 674 GetRequests, 568 SyntacticMatches, 66 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1479 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=649, Invalid=1073, Unknown=0, NotChecked=0, Total=1722 [2024-09-12 21:44:29,212 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:44:29,213 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 108 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:44:29,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-09-12 21:44:29,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 279. [2024-09-12 21:44:29,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 207 states have (on average 1.0096618357487923) internal successors, (209), 208 states have internal predecessors, (209), 36 states have call successors, (36), 36 states have call predecessors, (36), 35 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2024-09-12 21:44:29,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 280 transitions. [2024-09-12 21:44:29,238 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 280 transitions. Word has length 269 [2024-09-12 21:44:29,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:44:29,238 INFO L474 AbstractCegarLoop]: Abstraction has 279 states and 280 transitions. [2024-09-12 21:44:29,238 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 2.731707317073171) internal successors, (112), 39 states have internal predecessors, (112), 34 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-09-12 21:44:29,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:29,239 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 280 transitions. [2024-09-12 21:44:29,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-09-12 21:44:29,240 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:44:29,240 INFO L216 NwaCegarLoop]: trace histogram [34, 34, 34, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:44:29,257 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2024-09-12 21:44:29,440 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,66 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:29,441 INFO L399 AbstractCegarLoop]: === Iteration 68 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:44:29,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:29,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1898822956, now seen corresponding path program 65 times [2024-09-12 21:44:29,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:44:29,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439235008] [2024-09-12 21:44:29,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:44:29,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:44:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,137 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:44:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 21:44:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 21:44:31,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 21:44:31,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,141 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 21:44:31,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 21:44:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 21:44:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,144 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 21:44:31,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,144 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 21:44:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,145 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 21:44:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,146 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 21:44:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 21:44:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 21:44:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 21:44:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 21:44:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 21:44:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 21:44:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 21:44:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,153 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 21:44:31,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-09-12 21:44:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-09-12 21:44:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 21:44:31,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-09-12 21:44:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 21:44:31,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,159 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 21:44:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 21:44:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,161 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 21:44:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 21:44:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-09-12 21:44:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-09-12 21:44:31,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-09-12 21:44:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-09-12 21:44:31,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-09-12 21:44:31,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,167 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-09-12 21:44:31,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:31,168 INFO L134 CoverageAnalysis]: Checked inductivity of 4389 backedges. 1619 proven. 658 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-09-12 21:44:31,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:44:31,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439235008] [2024-09-12 21:44:31,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439235008] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:44:31,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274182801] [2024-09-12 21:44:31,169 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:44:31,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:31,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:44:31,170 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:44:31,171 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-09-12 21:44:31,291 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 34 check-sat command(s) [2024-09-12 21:44:31,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:44:31,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 70 conjuncts are in the unsatisfiable core [2024-09-12 21:44:31,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:44:32,901 INFO L134 CoverageAnalysis]: Checked inductivity of 4389 backedges. 1716 proven. 561 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-09-12 21:44:32,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:44:34,219 INFO L134 CoverageAnalysis]: Checked inductivity of 4389 backedges. 1716 proven. 561 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-09-12 21:44:34,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274182801] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:44:34,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:44:34,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71, 71] total 107 [2024-09-12 21:44:34,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204104710] [2024-09-12 21:44:34,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:44:34,220 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2024-09-12 21:44:34,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:44:34,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2024-09-12 21:44:34,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2560, Invalid=8782, Unknown=0, NotChecked=0, Total=11342 [2024-09-12 21:44:34,222 INFO L87 Difference]: Start difference. First operand 279 states and 280 transitions. Second operand has 107 states, 107 states have (on average 1.7102803738317758) internal successors, (183), 107 states have internal predecessors, (183), 69 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-09-12 21:44:34,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:44:34,658 INFO L93 Difference]: Finished difference Result 390 states and 425 transitions. [2024-09-12 21:44:34,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-09-12 21:44:34,659 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 107 states have (on average 1.7102803738317758) internal successors, (183), 107 states have internal predecessors, (183), 69 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Word has length 276 [2024-09-12 21:44:34,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:44:34,661 INFO L225 Difference]: With dead ends: 390 [2024-09-12 21:44:34,661 INFO L226 Difference]: Without dead ends: 280 [2024-09-12 21:44:34,661 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 690 GetRequests, 518 SyntacticMatches, 67 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7359 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=2560, Invalid=8782, Unknown=0, NotChecked=0, Total=11342 [2024-09-12 21:44:34,662 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 21:44:34,662 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 701 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 21:44:34,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-09-12 21:44:34,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2024-09-12 21:44:34,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 208 states have (on average 1.0096153846153846) internal successors, (210), 209 states have internal predecessors, (210), 36 states have call successors, (36), 36 states have call predecessors, (36), 35 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2024-09-12 21:44:34,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 281 transitions. [2024-09-12 21:44:34,679 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 281 transitions. Word has length 276 [2024-09-12 21:44:34,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:44:34,679 INFO L474 AbstractCegarLoop]: Abstraction has 280 states and 281 transitions. [2024-09-12 21:44:34,680 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 1.7102803738317758) internal successors, (183), 107 states have internal predecessors, (183), 69 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-09-12 21:44:34,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:34,680 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 281 transitions. [2024-09-12 21:44:34,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2024-09-12 21:44:34,681 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:44:34,681 INFO L216 NwaCegarLoop]: trace histogram [34, 34, 34, 34, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:44:34,693 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2024-09-12 21:44:34,881 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2024-09-12 21:44:34,881 INFO L399 AbstractCegarLoop]: === Iteration 69 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:44:34,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:34,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1687128632, now seen corresponding path program 66 times [2024-09-12 21:44:34,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:44:34,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712343852] [2024-09-12 21:44:34,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:44:34,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:44:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:44:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,849 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 21:44:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 21:44:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 21:44:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 21:44:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 21:44:35,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,854 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 21:44:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 21:44:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 21:44:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,858 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 21:44:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 21:44:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 21:44:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 21:44:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 21:44:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 21:44:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 21:44:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-09-12 21:44:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 21:44:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,868 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 21:44:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 21:44:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,871 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 21:44:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 21:44:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-09-12 21:44:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,874 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 21:44:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,875 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 21:44:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,876 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-09-12 21:44:35,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-09-12 21:44:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-09-12 21:44:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-09-12 21:44:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-09-12 21:44:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-09-12 21:44:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 21:44:35,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-09-12 21:44:35,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,886 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-09-12 21:44:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:35,888 INFO L134 CoverageAnalysis]: Checked inductivity of 4423 backedges. 627 proven. 1684 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-09-12 21:44:35,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:44:35,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712343852] [2024-09-12 21:44:35,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712343852] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:44:35,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3480964] [2024-09-12 21:44:35,888 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:44:35,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:35,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:44:35,890 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:44:35,892 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2024-09-12 21:44:36,052 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 34 check-sat command(s) [2024-09-12 21:44:36,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:44:36,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 74 conjuncts are in the unsatisfiable core [2024-09-12 21:44:36,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:44:36,251 INFO L134 CoverageAnalysis]: Checked inductivity of 4423 backedges. 661 proven. 1650 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-09-12 21:44:36,251 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:44:37,228 INFO L134 CoverageAnalysis]: Checked inductivity of 4423 backedges. 661 proven. 1650 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-09-12 21:44:37,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3480964] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:44:37,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:44:37,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39, 39] total 42 [2024-09-12 21:44:37,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025379825] [2024-09-12 21:44:37,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:44:37,229 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-09-12 21:44:37,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:44:37,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-09-12 21:44:37,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=679, Invalid=1043, Unknown=0, NotChecked=0, Total=1722 [2024-09-12 21:44:37,230 INFO L87 Difference]: Start difference. First operand 280 states and 281 transitions. Second operand has 42 states, 42 states have (on average 2.738095238095238) internal successors, (115), 40 states have internal predecessors, (115), 35 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 21:44:37,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:44:37,430 INFO L93 Difference]: Finished difference Result 293 states and 295 transitions. [2024-09-12 21:44:37,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-12 21:44:37,430 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 2.738095238095238) internal successors, (115), 40 states have internal predecessors, (115), 35 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Word has length 277 [2024-09-12 21:44:37,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:44:37,432 INFO L225 Difference]: With dead ends: 293 [2024-09-12 21:44:37,432 INFO L226 Difference]: Without dead ends: 291 [2024-09-12 21:44:37,432 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 585 SyntacticMatches, 68 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1558 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=685, Invalid=1121, Unknown=0, NotChecked=0, Total=1806 [2024-09-12 21:44:37,432 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 21:44:37,432 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 99 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 21:44:37,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-09-12 21:44:37,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 287. [2024-09-12 21:44:37,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 213 states have (on average 1.0093896713615023) internal successors, (215), 214 states have internal predecessors, (215), 37 states have call successors, (37), 37 states have call predecessors, (37), 36 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-09-12 21:44:37,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 288 transitions. [2024-09-12 21:44:37,453 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 288 transitions. Word has length 277 [2024-09-12 21:44:37,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:44:37,453 INFO L474 AbstractCegarLoop]: Abstraction has 287 states and 288 transitions. [2024-09-12 21:44:37,453 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.738095238095238) internal successors, (115), 40 states have internal predecessors, (115), 35 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 21:44:37,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:37,454 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 288 transitions. [2024-09-12 21:44:37,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-09-12 21:44:37,454 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:44:37,454 INFO L216 NwaCegarLoop]: trace histogram [35, 35, 35, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:44:37,467 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2024-09-12 21:44:37,655 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2024-09-12 21:44:37,655 INFO L399 AbstractCegarLoop]: === Iteration 70 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:44:37,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:37,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1127844885, now seen corresponding path program 67 times [2024-09-12 21:44:37,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:44:37,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657199034] [2024-09-12 21:44:37,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:44:37,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:44:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:44:39,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 21:44:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 21:44:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,443 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 21:44:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 21:44:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 21:44:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 21:44:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 21:44:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 21:44:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 21:44:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,449 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 21:44:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 21:44:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 21:44:39,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,452 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 21:44:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,452 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 21:44:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 21:44:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-09-12 21:44:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 21:44:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 21:44:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 21:44:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 21:44:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 21:44:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-09-12 21:44:39,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 21:44:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 21:44:39,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-09-12 21:44:39,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-09-12 21:44:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,466 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-09-12 21:44:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-09-12 21:44:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,469 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-09-12 21:44:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-09-12 21:44:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,471 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 21:44:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,472 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-09-12 21:44:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-09-12 21:44:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,474 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-09-12 21:44:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,476 INFO L134 CoverageAnalysis]: Checked inductivity of 4658 backedges. 1719 proven. 695 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-09-12 21:44:39,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:44:39,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657199034] [2024-09-12 21:44:39,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657199034] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:44:39,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93347316] [2024-09-12 21:44:39,477 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 21:44:39,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:39,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:44:39,479 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:44:39,479 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2024-09-12 21:44:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:39,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-09-12 21:44:39,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:44:41,294 INFO L134 CoverageAnalysis]: Checked inductivity of 4658 backedges. 1819 proven. 595 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-09-12 21:44:41,295 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:44:42,707 INFO L134 CoverageAnalysis]: Checked inductivity of 4658 backedges. 1819 proven. 595 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-09-12 21:44:42,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93347316] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:44:42,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:44:42,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 73, 73] total 110 [2024-09-12 21:44:42,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247637998] [2024-09-12 21:44:42,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:44:42,708 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2024-09-12 21:44:42,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:44:42,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2024-09-12 21:44:42,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2705, Invalid=9285, Unknown=0, NotChecked=0, Total=11990 [2024-09-12 21:44:42,710 INFO L87 Difference]: Start difference. First operand 287 states and 288 transitions. Second operand has 110 states, 110 states have (on average 1.709090909090909) internal successors, (188), 110 states have internal predecessors, (188), 71 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-09-12 21:44:43,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:44:43,195 INFO L93 Difference]: Finished difference Result 401 states and 437 transitions. [2024-09-12 21:44:43,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-09-12 21:44:43,195 INFO L78 Accepts]: Start accepts. Automaton has has 110 states, 110 states have (on average 1.709090909090909) internal successors, (188), 110 states have internal predecessors, (188), 71 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) Word has length 284 [2024-09-12 21:44:43,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:44:43,197 INFO L225 Difference]: With dead ends: 401 [2024-09-12 21:44:43,197 INFO L226 Difference]: Without dead ends: 288 [2024-09-12 21:44:43,198 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 533 SyntacticMatches, 69 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7786 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=2705, Invalid=9285, Unknown=0, NotChecked=0, Total=11990 [2024-09-12 21:44:43,198 INFO L434 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 1133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 21:44:43,198 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 804 Invalid, 1133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 21:44:43,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-09-12 21:44:43,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2024-09-12 21:44:43,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 214 states have (on average 1.0093457943925233) internal successors, (216), 215 states have internal predecessors, (216), 37 states have call successors, (37), 37 states have call predecessors, (37), 36 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-09-12 21:44:43,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 289 transitions. [2024-09-12 21:44:43,225 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 289 transitions. Word has length 284 [2024-09-12 21:44:43,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:44:43,225 INFO L474 AbstractCegarLoop]: Abstraction has 288 states and 289 transitions. [2024-09-12 21:44:43,226 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 110 states have (on average 1.709090909090909) internal successors, (188), 110 states have internal predecessors, (188), 71 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-09-12 21:44:43,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:43,226 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 289 transitions. [2024-09-12 21:44:43,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-09-12 21:44:43,227 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:44:43,227 INFO L216 NwaCegarLoop]: trace histogram [35, 35, 35, 35, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:44:43,245 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0 [2024-09-12 21:44:43,428 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2024-09-12 21:44:43,428 INFO L399 AbstractCegarLoop]: === Iteration 71 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:44:43,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:43,428 INFO L85 PathProgramCache]: Analyzing trace with hash 2134930679, now seen corresponding path program 68 times [2024-09-12 21:44:43,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:44:43,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145622695] [2024-09-12 21:44:43,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:44:43,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:44:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:44:44,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 21:44:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 21:44:44,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 21:44:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 21:44:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,434 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 21:44:44,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 21:44:44,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,436 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 21:44:44,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,443 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 21:44:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 21:44:44,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 21:44:44,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 21:44:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 21:44:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 21:44:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 21:44:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 21:44:44,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-09-12 21:44:44,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,452 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 21:44:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 21:44:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 21:44:44,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-09-12 21:44:44,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 21:44:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-09-12 21:44:44,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-09-12 21:44:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 21:44:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 21:44:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 21:44:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-09-12 21:44:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-09-12 21:44:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-09-12 21:44:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,466 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-09-12 21:44:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 21:44:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-09-12 21:44:44,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,469 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-09-12 21:44:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,471 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-09-12 21:44:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:44,472 INFO L134 CoverageAnalysis]: Checked inductivity of 4693 backedges. 663 proven. 1786 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-09-12 21:44:44,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:44:44,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145622695] [2024-09-12 21:44:44,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145622695] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:44:44,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536239099] [2024-09-12 21:44:44,473 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:44:44,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:44,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:44:44,475 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:44:44,476 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2024-09-12 21:44:44,573 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:44:44,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:44:44,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-09-12 21:44:44,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:44:44,725 INFO L134 CoverageAnalysis]: Checked inductivity of 4693 backedges. 698 proven. 1751 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-09-12 21:44:44,726 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:44:45,724 INFO L134 CoverageAnalysis]: Checked inductivity of 4693 backedges. 698 proven. 1751 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-09-12 21:44:45,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536239099] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:44:45,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:44:45,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 43 [2024-09-12 21:44:45,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776850629] [2024-09-12 21:44:45,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:44:45,725 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-09-12 21:44:45,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:44:45,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-09-12 21:44:45,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=716, Invalid=1090, Unknown=0, NotChecked=0, Total=1806 [2024-09-12 21:44:45,726 INFO L87 Difference]: Start difference. First operand 288 states and 289 transitions. Second operand has 43 states, 43 states have (on average 2.744186046511628) internal successors, (118), 41 states have internal predecessors, (118), 36 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-09-12 21:44:45,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:44:45,960 INFO L93 Difference]: Finished difference Result 301 states and 303 transitions. [2024-09-12 21:44:45,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-09-12 21:44:45,960 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.744186046511628) internal successors, (118), 41 states have internal predecessors, (118), 36 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Word has length 285 [2024-09-12 21:44:45,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:44:45,962 INFO L225 Difference]: With dead ends: 301 [2024-09-12 21:44:45,962 INFO L226 Difference]: Without dead ends: 299 [2024-09-12 21:44:45,963 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 600 SyntacticMatches, 72 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1711 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=722, Invalid=1170, Unknown=0, NotChecked=0, Total=1892 [2024-09-12 21:44:45,963 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:44:45,963 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 107 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:44:45,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-09-12 21:44:46,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 295. [2024-09-12 21:44:46,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 219 states have (on average 1.0091324200913243) internal successors, (221), 220 states have internal predecessors, (221), 38 states have call successors, (38), 38 states have call predecessors, (38), 37 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-09-12 21:44:46,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 296 transitions. [2024-09-12 21:44:46,003 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 296 transitions. Word has length 285 [2024-09-12 21:44:46,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:44:46,003 INFO L474 AbstractCegarLoop]: Abstraction has 295 states and 296 transitions. [2024-09-12 21:44:46,003 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.744186046511628) internal successors, (118), 41 states have internal predecessors, (118), 36 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-09-12 21:44:46,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:46,004 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 296 transitions. [2024-09-12 21:44:46,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-09-12 21:44:46,005 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:44:46,005 INFO L216 NwaCegarLoop]: trace histogram [36, 36, 36, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:44:46,021 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0 [2024-09-12 21:44:46,205 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,70 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:46,206 INFO L399 AbstractCegarLoop]: === Iteration 72 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:44:46,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:46,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1877294004, now seen corresponding path program 69 times [2024-09-12 21:44:46,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:44:46,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963576546] [2024-09-12 21:44:46,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:44:46,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:44:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,347 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:44:48,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,348 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 21:44:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,349 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 21:44:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 21:44:48,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 21:44:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,352 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 21:44:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,352 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 21:44:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,353 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 21:44:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,354 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 21:44:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,355 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 21:44:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 21:44:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 21:44:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 21:44:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 21:44:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,359 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 21:44:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,360 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 21:44:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-09-12 21:44:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 21:44:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 21:44:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,363 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 21:44:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-09-12 21:44:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 21:44:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,366 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-09-12 21:44:48,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-09-12 21:44:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 21:44:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 21:44:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,369 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 21:44:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,370 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-09-12 21:44:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-09-12 21:44:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,372 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-09-12 21:44:48,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-09-12 21:44:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 21:44:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,375 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-09-12 21:44:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,376 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-09-12 21:44:48,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-09-12 21:44:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 21:44:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:48,380 INFO L134 CoverageAnalysis]: Checked inductivity of 4935 backedges. 1822 proven. 733 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-09-12 21:44:48,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:44:48,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963576546] [2024-09-12 21:44:48,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963576546] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:44:48,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402442512] [2024-09-12 21:44:48,380 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:44:48,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:48,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:44:48,381 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:44:48,382 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2024-09-12 21:44:48,506 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 36 check-sat command(s) [2024-09-12 21:44:48,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:44:48,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 708 conjuncts, 74 conjuncts are in the unsatisfiable core [2024-09-12 21:44:48,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:44:50,331 INFO L134 CoverageAnalysis]: Checked inductivity of 4935 backedges. 1925 proven. 630 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-09-12 21:44:50,331 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:44:51,853 INFO L134 CoverageAnalysis]: Checked inductivity of 4935 backedges. 1925 proven. 630 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-09-12 21:44:51,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402442512] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:44:51,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:44:51,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 75, 75] total 113 [2024-09-12 21:44:51,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158518776] [2024-09-12 21:44:51,853 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:44:51,854 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2024-09-12 21:44:51,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:44:51,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2024-09-12 21:44:51,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2854, Invalid=9802, Unknown=0, NotChecked=0, Total=12656 [2024-09-12 21:44:51,855 INFO L87 Difference]: Start difference. First operand 295 states and 296 transitions. Second operand has 113 states, 113 states have (on average 1.7079646017699115) internal successors, (193), 113 states have internal predecessors, (193), 73 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-09-12 21:44:52,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:44:52,325 INFO L93 Difference]: Finished difference Result 412 states and 449 transitions. [2024-09-12 21:44:52,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-09-12 21:44:52,326 INFO L78 Accepts]: Start accepts. Automaton has has 113 states, 113 states have (on average 1.7079646017699115) internal successors, (193), 113 states have internal predecessors, (193), 73 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) Word has length 292 [2024-09-12 21:44:52,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:44:52,328 INFO L225 Difference]: With dead ends: 412 [2024-09-12 21:44:52,328 INFO L226 Difference]: Without dead ends: 296 [2024-09-12 21:44:52,329 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 730 GetRequests, 548 SyntacticMatches, 71 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8225 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=2854, Invalid=9802, Unknown=0, NotChecked=0, Total=12656 [2024-09-12 21:44:52,329 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 21:44:52,329 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 652 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 21:44:52,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-09-12 21:44:52,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2024-09-12 21:44:52,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 220 states have (on average 1.009090909090909) internal successors, (222), 221 states have internal predecessors, (222), 38 states have call successors, (38), 38 states have call predecessors, (38), 37 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-09-12 21:44:52,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 297 transitions. [2024-09-12 21:44:52,358 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 297 transitions. Word has length 292 [2024-09-12 21:44:52,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:44:52,358 INFO L474 AbstractCegarLoop]: Abstraction has 296 states and 297 transitions. [2024-09-12 21:44:52,358 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 113 states, 113 states have (on average 1.7079646017699115) internal successors, (193), 113 states have internal predecessors, (193), 73 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-09-12 21:44:52,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:52,359 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 297 transitions. [2024-09-12 21:44:52,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-09-12 21:44:52,360 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:44:52,360 INFO L216 NwaCegarLoop]: trace histogram [36, 36, 36, 36, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:44:52,377 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2024-09-12 21:44:52,560 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,71 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:52,561 INFO L399 AbstractCegarLoop]: === Iteration 73 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:44:52,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:52,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1882782040, now seen corresponding path program 70 times [2024-09-12 21:44:52,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:44:52,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865906873] [2024-09-12 21:44:52,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:44:52,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:44:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:44:53,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 21:44:53,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 21:44:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 21:44:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 21:44:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 21:44:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 21:44:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 21:44:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 21:44:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 21:44:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 21:44:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 21:44:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 21:44:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 21:44:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-09-12 21:44:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 21:44:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 21:44:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-09-12 21:44:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 21:44:53,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 21:44:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-09-12 21:44:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-12 21:44:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-09-12 21:44:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-09-12 21:44:53,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 21:44:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-09-12 21:44:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,662 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 21:44:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-09-12 21:44:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,664 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 21:44:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 21:44:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,667 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-09-12 21:44:53,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-09-12 21:44:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-09-12 21:44:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2024-09-12 21:44:53,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,671 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-09-12 21:44:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,672 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-12 21:44:53,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:53,674 INFO L134 CoverageAnalysis]: Checked inductivity of 4971 backedges. 700 proven. 1891 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-09-12 21:44:53,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:44:53,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865906873] [2024-09-12 21:44:53,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865906873] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:44:53,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051921035] [2024-09-12 21:44:53,674 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:44:53,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:53,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:44:53,675 INFO L229 MonitoredProcess]: Starting monitored process 72 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:44:53,676 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2024-09-12 21:44:53,776 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:44:53,776 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:44:53,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 78 conjuncts are in the unsatisfiable core [2024-09-12 21:44:53,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:44:53,932 INFO L134 CoverageAnalysis]: Checked inductivity of 4971 backedges. 736 proven. 1855 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-09-12 21:44:53,932 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:44:54,979 INFO L134 CoverageAnalysis]: Checked inductivity of 4971 backedges. 736 proven. 1855 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-09-12 21:44:54,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051921035] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:44:54,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:44:54,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41, 41] total 44 [2024-09-12 21:44:54,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454796449] [2024-09-12 21:44:54,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:44:54,980 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-09-12 21:44:54,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:44:54,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-09-12 21:44:54,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=754, Invalid=1138, Unknown=0, NotChecked=0, Total=1892 [2024-09-12 21:44:54,981 INFO L87 Difference]: Start difference. First operand 296 states and 297 transitions. Second operand has 44 states, 44 states have (on average 2.75) internal successors, (121), 42 states have internal predecessors, (121), 37 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-09-12 21:44:55,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:44:55,231 INFO L93 Difference]: Finished difference Result 309 states and 311 transitions. [2024-09-12 21:44:55,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-09-12 21:44:55,231 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 2.75) internal successors, (121), 42 states have internal predecessors, (121), 37 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Word has length 293 [2024-09-12 21:44:55,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:44:55,233 INFO L225 Difference]: With dead ends: 309 [2024-09-12 21:44:55,233 INFO L226 Difference]: Without dead ends: 307 [2024-09-12 21:44:55,233 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 619 SyntacticMatches, 72 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1722 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=760, Invalid=1220, Unknown=0, NotChecked=0, Total=1980 [2024-09-12 21:44:55,233 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:44:55,234 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 157 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:44:55,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-09-12 21:44:55,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 303. [2024-09-12 21:44:55,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 225 states have (on average 1.008888888888889) internal successors, (227), 226 states have internal predecessors, (227), 39 states have call successors, (39), 39 states have call predecessors, (39), 38 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-09-12 21:44:55,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 304 transitions. [2024-09-12 21:44:55,263 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 304 transitions. Word has length 293 [2024-09-12 21:44:55,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:44:55,263 INFO L474 AbstractCegarLoop]: Abstraction has 303 states and 304 transitions. [2024-09-12 21:44:55,263 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.75) internal successors, (121), 42 states have internal predecessors, (121), 37 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-09-12 21:44:55,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:55,264 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 304 transitions. [2024-09-12 21:44:55,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-09-12 21:44:55,265 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:44:55,265 INFO L216 NwaCegarLoop]: trace histogram [37, 37, 37, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:44:55,279 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2024-09-12 21:44:55,465 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,72 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:55,466 INFO L399 AbstractCegarLoop]: === Iteration 74 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:44:55,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:44:55,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1885880117, now seen corresponding path program 71 times [2024-09-12 21:44:55,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:44:55,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322500939] [2024-09-12 21:44:55,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:44:55,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:44:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:44:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 21:44:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 21:44:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 21:44:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 21:44:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 21:44:57,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 21:44:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 21:44:57,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 21:44:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,517 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 21:44:57,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 21:44:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,519 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 21:44:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 21:44:57,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 21:44:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,522 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-09-12 21:44:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 21:44:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 21:44:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,527 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-09-12 21:44:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,528 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 21:44:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,529 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 21:44:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-09-12 21:44:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,532 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-12 21:44:57,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-09-12 21:44:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-09-12 21:44:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,536 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 21:44:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,537 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-09-12 21:44:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 21:44:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-09-12 21:44:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 21:44:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 21:44:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,544 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-09-12 21:44:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,545 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-09-12 21:44:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,546 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-09-12 21:44:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2024-09-12 21:44:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-09-12 21:44:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-12 21:44:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-09-12 21:44:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:44:57,554 INFO L134 CoverageAnalysis]: Checked inductivity of 5220 backedges. 1928 proven. 772 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-09-12 21:44:57,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:44:57,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322500939] [2024-09-12 21:44:57,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322500939] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:44:57,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456486096] [2024-09-12 21:44:57,554 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:44:57,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:44:57,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:44:57,556 INFO L229 MonitoredProcess]: Starting monitored process 73 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:44:57,558 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2024-09-12 21:44:57,700 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 37 check-sat command(s) [2024-09-12 21:44:57,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:44:57,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 76 conjuncts are in the unsatisfiable core [2024-09-12 21:44:57,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:44:59,616 INFO L134 CoverageAnalysis]: Checked inductivity of 5220 backedges. 2034 proven. 666 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-09-12 21:44:59,616 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:45:01,199 INFO L134 CoverageAnalysis]: Checked inductivity of 5220 backedges. 2034 proven. 666 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-09-12 21:45:01,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456486096] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:45:01,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:45:01,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 77, 77] total 116 [2024-09-12 21:45:01,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325203892] [2024-09-12 21:45:01,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:45:01,200 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 116 states [2024-09-12 21:45:01,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:45:01,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2024-09-12 21:45:01,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3007, Invalid=10333, Unknown=0, NotChecked=0, Total=13340 [2024-09-12 21:45:01,202 INFO L87 Difference]: Start difference. First operand 303 states and 304 transitions. Second operand has 116 states, 116 states have (on average 1.706896551724138) internal successors, (198), 116 states have internal predecessors, (198), 75 states have call successors, (76), 2 states have call predecessors, (76), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-09-12 21:45:01,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:45:01,663 INFO L93 Difference]: Finished difference Result 423 states and 461 transitions. [2024-09-12 21:45:01,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2024-09-12 21:45:01,664 INFO L78 Accepts]: Start accepts. Automaton has has 116 states, 116 states have (on average 1.706896551724138) internal successors, (198), 116 states have internal predecessors, (198), 75 states have call successors, (76), 2 states have call predecessors, (76), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) Word has length 300 [2024-09-12 21:45:01,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:45:01,667 INFO L225 Difference]: With dead ends: 423 [2024-09-12 21:45:01,667 INFO L226 Difference]: Without dead ends: 304 [2024-09-12 21:45:01,668 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 750 GetRequests, 563 SyntacticMatches, 73 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8676 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=3007, Invalid=10333, Unknown=0, NotChecked=0, Total=13340 [2024-09-12 21:45:01,668 INFO L434 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 21:45:01,668 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 681 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 21:45:01,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-09-12 21:45:01,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2024-09-12 21:45:01,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 226 states have (on average 1.008849557522124) internal successors, (228), 227 states have internal predecessors, (228), 39 states have call successors, (39), 39 states have call predecessors, (39), 38 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-09-12 21:45:01,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 305 transitions. [2024-09-12 21:45:01,699 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 305 transitions. Word has length 300 [2024-09-12 21:45:01,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:45:01,699 INFO L474 AbstractCegarLoop]: Abstraction has 304 states and 305 transitions. [2024-09-12 21:45:01,699 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 116 states, 116 states have (on average 1.706896551724138) internal successors, (198), 116 states have internal predecessors, (198), 75 states have call successors, (76), 2 states have call predecessors, (76), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-09-12 21:45:01,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:01,700 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 305 transitions. [2024-09-12 21:45:01,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-09-12 21:45:01,701 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:45:01,701 INFO L216 NwaCegarLoop]: trace histogram [37, 37, 37, 37, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:45:01,719 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2024-09-12 21:45:01,901 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,73 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:45:01,902 INFO L399 AbstractCegarLoop]: === Iteration 75 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:45:01,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:01,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1880741417, now seen corresponding path program 72 times [2024-09-12 21:45:01,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:45:01,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620800077] [2024-09-12 21:45:01,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:45:01,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:45:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:45:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,050 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 21:45:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 21:45:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 21:45:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,053 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 21:45:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,053 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 21:45:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 21:45:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 21:45:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,056 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-09-12 21:45:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,057 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 21:45:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,058 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 21:45:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 21:45:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 21:45:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 21:45:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-09-12 21:45:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,062 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 21:45:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-09-12 21:45:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 21:45:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,065 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-09-12 21:45:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,065 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 21:45:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,066 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-09-12 21:45:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,067 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 21:45:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,068 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-09-12 21:45:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-09-12 21:45:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,070 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-09-12 21:45:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,070 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-09-12 21:45:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,071 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-09-12 21:45:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-09-12 21:45:03,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,073 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-09-12 21:45:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-12 21:45:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-09-12 21:45:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,075 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-09-12 21:45:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-09-12 21:45:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,077 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 21:45:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,078 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2024-09-12 21:45:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,078 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-09-12 21:45:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,079 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2024-09-12 21:45:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:03,081 INFO L134 CoverageAnalysis]: Checked inductivity of 5257 backedges. 738 proven. 1999 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-09-12 21:45:03,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:45:03,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620800077] [2024-09-12 21:45:03,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620800077] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:45:03,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160230916] [2024-09-12 21:45:03,081 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:45:03,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:45:03,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:45:03,082 INFO L229 MonitoredProcess]: Starting monitored process 74 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:45:03,083 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2024-09-12 21:45:03,215 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2024-09-12 21:45:03,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:45:03,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 80 conjuncts are in the unsatisfiable core [2024-09-12 21:45:03,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:45:03,408 INFO L134 CoverageAnalysis]: Checked inductivity of 5257 backedges. 775 proven. 1962 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-09-12 21:45:03,408 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:45:04,500 INFO L134 CoverageAnalysis]: Checked inductivity of 5257 backedges. 775 proven. 1962 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-09-12 21:45:04,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160230916] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:45:04,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:45:04,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42, 42] total 45 [2024-09-12 21:45:04,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35402607] [2024-09-12 21:45:04,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:45:04,501 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-09-12 21:45:04,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:45:04,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-09-12 21:45:04,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=793, Invalid=1187, Unknown=0, NotChecked=0, Total=1980 [2024-09-12 21:45:04,502 INFO L87 Difference]: Start difference. First operand 304 states and 305 transitions. Second operand has 45 states, 45 states have (on average 2.7555555555555555) internal successors, (124), 43 states have internal predecessors, (124), 38 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-09-12 21:45:04,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:45:04,710 INFO L93 Difference]: Finished difference Result 317 states and 319 transitions. [2024-09-12 21:45:04,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-09-12 21:45:04,711 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 2.7555555555555555) internal successors, (124), 43 states have internal predecessors, (124), 38 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 301 [2024-09-12 21:45:04,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:45:04,713 INFO L225 Difference]: With dead ends: 317 [2024-09-12 21:45:04,713 INFO L226 Difference]: Without dead ends: 315 [2024-09-12 21:45:04,713 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 754 GetRequests, 636 SyntacticMatches, 74 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1807 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=799, Invalid=1271, Unknown=0, NotChecked=0, Total=2070 [2024-09-12 21:45:04,713 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:45:04,713 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 113 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:45:04,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-09-12 21:45:04,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 311. [2024-09-12 21:45:04,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 231 states have (on average 1.0086580086580086) internal successors, (233), 232 states have internal predecessors, (233), 40 states have call successors, (40), 40 states have call predecessors, (40), 39 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 21:45:04,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 312 transitions. [2024-09-12 21:45:04,733 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 312 transitions. Word has length 301 [2024-09-12 21:45:04,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:45:04,733 INFO L474 AbstractCegarLoop]: Abstraction has 311 states and 312 transitions. [2024-09-12 21:45:04,733 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 2.7555555555555555) internal successors, (124), 43 states have internal predecessors, (124), 38 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-09-12 21:45:04,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:04,734 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 312 transitions. [2024-09-12 21:45:04,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-09-12 21:45:04,735 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:45:04,735 INFO L216 NwaCegarLoop]: trace histogram [38, 38, 38, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:45:04,753 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Forceful destruction successful, exit code 0 [2024-09-12 21:45:04,935 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,74 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:45:04,936 INFO L399 AbstractCegarLoop]: === Iteration 76 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:45:04,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:04,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1536568468, now seen corresponding path program 73 times [2024-09-12 21:45:04,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:45:04,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293180948] [2024-09-12 21:45:04,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:45:04,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:45:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:45:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,053 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 21:45:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 21:45:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 21:45:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,056 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 21:45:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,057 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 21:45:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,058 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 21:45:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 21:45:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-09-12 21:45:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 21:45:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 21:45:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,062 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 21:45:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 21:45:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 21:45:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-09-12 21:45:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,065 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 21:45:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,066 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-09-12 21:45:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,067 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 21:45:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,068 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-09-12 21:45:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 21:45:07,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-09-12 21:45:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,070 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 21:45:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,071 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-09-12 21:45:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-09-12 21:45:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,073 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-09-12 21:45:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-09-12 21:45:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,075 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-09-12 21:45:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-09-12 21:45:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,077 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-09-12 21:45:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,077 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-12 21:45:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,078 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-09-12 21:45:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,079 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-09-12 21:45:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,080 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-09-12 21:45:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,081 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 21:45:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,082 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2024-09-12 21:45:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,083 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-09-12 21:45:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,084 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2024-09-12 21:45:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,085 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2024-09-12 21:45:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,086 INFO L134 CoverageAnalysis]: Checked inductivity of 5513 backedges. 2037 proven. 812 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2024-09-12 21:45:07,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:45:07,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293180948] [2024-09-12 21:45:07,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293180948] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:45:07,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089193113] [2024-09-12 21:45:07,086 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 21:45:07,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:45:07,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:45:07,088 INFO L229 MonitoredProcess]: Starting monitored process 75 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:45:07,088 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2024-09-12 21:45:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:07,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 78 conjuncts are in the unsatisfiable core [2024-09-12 21:45:07,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:45:09,224 INFO L134 CoverageAnalysis]: Checked inductivity of 5513 backedges. 2146 proven. 703 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2024-09-12 21:45:09,224 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:45:10,950 INFO L134 CoverageAnalysis]: Checked inductivity of 5513 backedges. 2146 proven. 703 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2024-09-12 21:45:10,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089193113] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:45:10,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:45:10,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 79, 79] total 119 [2024-09-12 21:45:10,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555438185] [2024-09-12 21:45:10,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:45:10,951 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2024-09-12 21:45:10,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:45:10,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2024-09-12 21:45:10,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3164, Invalid=10878, Unknown=0, NotChecked=0, Total=14042 [2024-09-12 21:45:10,952 INFO L87 Difference]: Start difference. First operand 311 states and 312 transitions. Second operand has 119 states, 119 states have (on average 1.7058823529411764) internal successors, (203), 119 states have internal predecessors, (203), 77 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-09-12 21:45:11,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:45:11,497 INFO L93 Difference]: Finished difference Result 434 states and 473 transitions. [2024-09-12 21:45:11,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-09-12 21:45:11,497 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 119 states have (on average 1.7058823529411764) internal successors, (203), 119 states have internal predecessors, (203), 77 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) Word has length 308 [2024-09-12 21:45:11,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:45:11,499 INFO L225 Difference]: With dead ends: 434 [2024-09-12 21:45:11,499 INFO L226 Difference]: Without dead ends: 312 [2024-09-12 21:45:11,500 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 770 GetRequests, 578 SyntacticMatches, 75 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9139 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=3164, Invalid=10878, Unknown=0, NotChecked=0, Total=14042 [2024-09-12 21:45:11,501 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 21:45:11,501 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 600 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 21:45:11,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-09-12 21:45:11,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2024-09-12 21:45:11,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 232 states have (on average 1.0086206896551724) internal successors, (234), 233 states have internal predecessors, (234), 40 states have call successors, (40), 40 states have call predecessors, (40), 39 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 21:45:11,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 313 transitions. [2024-09-12 21:45:11,542 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 313 transitions. Word has length 308 [2024-09-12 21:45:11,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:45:11,542 INFO L474 AbstractCegarLoop]: Abstraction has 312 states and 313 transitions. [2024-09-12 21:45:11,543 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 119 states have (on average 1.7058823529411764) internal successors, (203), 119 states have internal predecessors, (203), 77 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-09-12 21:45:11,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:11,543 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 313 transitions. [2024-09-12 21:45:11,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-09-12 21:45:11,545 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:45:11,545 INFO L216 NwaCegarLoop]: trace histogram [38, 38, 38, 38, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:45:11,561 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Forceful destruction successful, exit code 0 [2024-09-12 21:45:11,745 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,75 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:45:11,745 INFO L399 AbstractCegarLoop]: === Iteration 77 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:45:11,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:11,746 INFO L85 PathProgramCache]: Analyzing trace with hash 2071228536, now seen corresponding path program 74 times [2024-09-12 21:45:11,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:45:11,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340710455] [2024-09-12 21:45:11,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:45:11,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:45:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:45:13,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 21:45:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 21:45:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-09-12 21:45:13,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-09-12 21:45:13,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 21:45:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 21:45:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 21:45:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 21:45:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 21:45:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 21:45:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,044 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-09-12 21:45:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,044 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 21:45:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 21:45:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,046 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 21:45:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 21:45:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,048 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-09-12 21:45:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,048 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 21:45:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-09-12 21:45:13,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,050 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-09-12 21:45:13,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 21:45:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 21:45:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,053 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 21:45:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-09-12 21:45:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-09-12 21:45:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,057 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 21:45:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,058 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-09-12 21:45:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 21:45:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-09-12 21:45:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,062 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 21:45:13,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-09-12 21:45:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-09-12 21:45:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,065 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 21:45:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,067 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-09-12 21:45:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,068 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2024-09-12 21:45:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-09-12 21:45:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,070 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-09-12 21:45:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-09-12 21:45:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:13,074 INFO L134 CoverageAnalysis]: Checked inductivity of 5551 backedges. 777 proven. 2110 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2024-09-12 21:45:13,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:45:13,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340710455] [2024-09-12 21:45:13,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340710455] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:45:13,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453523242] [2024-09-12 21:45:13,074 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:45:13,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:45:13,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:45:13,076 INFO L229 MonitoredProcess]: Starting monitored process 76 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:45:13,077 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2024-09-12 21:45:13,184 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:45:13,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:45:13,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 79 conjuncts are in the unsatisfiable core [2024-09-12 21:45:13,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:45:13,350 INFO L134 CoverageAnalysis]: Checked inductivity of 5551 backedges. 815 proven. 2072 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2024-09-12 21:45:13,350 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:45:14,543 INFO L134 CoverageAnalysis]: Checked inductivity of 5551 backedges. 815 proven. 2072 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2024-09-12 21:45:14,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453523242] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:45:14,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:45:14,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 43] total 46 [2024-09-12 21:45:14,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056073301] [2024-09-12 21:45:14,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:45:14,544 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-09-12 21:45:14,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:45:14,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-09-12 21:45:14,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=833, Invalid=1237, Unknown=0, NotChecked=0, Total=2070 [2024-09-12 21:45:14,545 INFO L87 Difference]: Start difference. First operand 312 states and 313 transitions. Second operand has 46 states, 46 states have (on average 2.760869565217391) internal successors, (127), 44 states have internal predecessors, (127), 39 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-09-12 21:45:14,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:45:14,786 INFO L93 Difference]: Finished difference Result 325 states and 327 transitions. [2024-09-12 21:45:14,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-09-12 21:45:14,786 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 2.760869565217391) internal successors, (127), 44 states have internal predecessors, (127), 39 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Word has length 309 [2024-09-12 21:45:14,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:45:14,788 INFO L225 Difference]: With dead ends: 325 [2024-09-12 21:45:14,788 INFO L226 Difference]: Without dead ends: 323 [2024-09-12 21:45:14,788 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 774 GetRequests, 651 SyntacticMatches, 78 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1972 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=839, Invalid=1323, Unknown=0, NotChecked=0, Total=2162 [2024-09-12 21:45:14,789 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:45:14,789 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 138 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:45:14,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-09-12 21:45:14,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 319. [2024-09-12 21:45:14,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 237 states have (on average 1.0084388185654007) internal successors, (239), 238 states have internal predecessors, (239), 41 states have call successors, (41), 41 states have call predecessors, (41), 40 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-09-12 21:45:14,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 320 transitions. [2024-09-12 21:45:14,824 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 320 transitions. Word has length 309 [2024-09-12 21:45:14,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:45:14,824 INFO L474 AbstractCegarLoop]: Abstraction has 319 states and 320 transitions. [2024-09-12 21:45:14,824 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 2.760869565217391) internal successors, (127), 44 states have internal predecessors, (127), 39 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-09-12 21:45:14,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:14,824 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 320 transitions. [2024-09-12 21:45:14,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-09-12 21:45:14,826 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:45:14,826 INFO L216 NwaCegarLoop]: trace histogram [39, 39, 39, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:45:14,843 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0 [2024-09-12 21:45:15,026 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,76 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:45:15,027 INFO L399 AbstractCegarLoop]: === Iteration 78 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:45:15,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:15,027 INFO L85 PathProgramCache]: Analyzing trace with hash 603850155, now seen corresponding path program 75 times [2024-09-12 21:45:15,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:45:15,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432401779] [2024-09-12 21:45:15,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:45:15,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:45:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:45:17,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-09-12 21:45:17,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 21:45:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-09-12 21:45:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-09-12 21:45:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 21:45:17,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 21:45:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 21:45:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 21:45:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 21:45:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 21:45:17,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-09-12 21:45:17,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,659 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 21:45:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 21:45:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 21:45:17,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 21:45:17,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,662 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-09-12 21:45:17,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 21:45:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,664 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-09-12 21:45:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,665 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-09-12 21:45:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 21:45:17,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 21:45:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,667 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 21:45:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-09-12 21:45:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-09-12 21:45:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 21:45:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,671 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-09-12 21:45:17,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,671 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 21:45:17,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,672 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-09-12 21:45:17,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 21:45:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,674 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-09-12 21:45:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-09-12 21:45:17,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 21:45:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-09-12 21:45:17,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2024-09-12 21:45:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-09-12 21:45:17,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-09-12 21:45:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-09-12 21:45:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2024-09-12 21:45:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:17,683 INFO L134 CoverageAnalysis]: Checked inductivity of 5814 backedges. 2149 proven. 853 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2024-09-12 21:45:17,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:45:17,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432401779] [2024-09-12 21:45:17,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432401779] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:45:17,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130260541] [2024-09-12 21:45:17,683 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:45:17,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:45:17,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:45:17,685 INFO L229 MonitoredProcess]: Starting monitored process 77 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:45:17,686 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2024-09-12 21:45:17,825 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 39 check-sat command(s) [2024-09-12 21:45:17,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:45:17,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 80 conjuncts are in the unsatisfiable core [2024-09-12 21:45:17,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:45:19,949 INFO L134 CoverageAnalysis]: Checked inductivity of 5814 backedges. 2261 proven. 741 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2024-09-12 21:45:19,949 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:45:21,662 INFO L134 CoverageAnalysis]: Checked inductivity of 5814 backedges. 2261 proven. 741 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2024-09-12 21:45:21,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130260541] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:45:21,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:45:21,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 81, 81] total 122 [2024-09-12 21:45:21,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510915842] [2024-09-12 21:45:21,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:45:21,663 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 122 states [2024-09-12 21:45:21,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:45:21,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2024-09-12 21:45:21,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3325, Invalid=11437, Unknown=0, NotChecked=0, Total=14762 [2024-09-12 21:45:21,665 INFO L87 Difference]: Start difference. First operand 319 states and 320 transitions. Second operand has 122 states, 122 states have (on average 1.7049180327868851) internal successors, (208), 122 states have internal predecessors, (208), 79 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-09-12 21:45:22,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:45:22,269 INFO L93 Difference]: Finished difference Result 445 states and 485 transitions. [2024-09-12 21:45:22,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2024-09-12 21:45:22,270 INFO L78 Accepts]: Start accepts. Automaton has has 122 states, 122 states have (on average 1.7049180327868851) internal successors, (208), 122 states have internal predecessors, (208), 79 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Word has length 316 [2024-09-12 21:45:22,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:45:22,281 INFO L225 Difference]: With dead ends: 445 [2024-09-12 21:45:22,281 INFO L226 Difference]: Without dead ends: 320 [2024-09-12 21:45:22,282 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 790 GetRequests, 593 SyntacticMatches, 77 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9614 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=3325, Invalid=11437, Unknown=0, NotChecked=0, Total=14762 [2024-09-12 21:45:22,283 INFO L434 NwaCegarLoop]: 86 mSDtfsCounter, 0 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 1255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 21:45:22,283 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 930 Invalid, 1255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 21:45:22,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-09-12 21:45:22,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2024-09-12 21:45:22,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 238 states have (on average 1.0084033613445378) internal successors, (240), 239 states have internal predecessors, (240), 41 states have call successors, (41), 41 states have call predecessors, (41), 40 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-09-12 21:45:22,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 321 transitions. [2024-09-12 21:45:22,313 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 321 transitions. Word has length 316 [2024-09-12 21:45:22,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:45:22,313 INFO L474 AbstractCegarLoop]: Abstraction has 320 states and 321 transitions. [2024-09-12 21:45:22,313 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 122 states, 122 states have (on average 1.7049180327868851) internal successors, (208), 122 states have internal predecessors, (208), 79 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-09-12 21:45:22,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:22,313 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 321 transitions. [2024-09-12 21:45:22,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-09-12 21:45:22,314 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:45:22,314 INFO L216 NwaCegarLoop]: trace histogram [39, 39, 39, 39, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:45:22,329 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Forceful destruction successful, exit code 0 [2024-09-12 21:45:22,515 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2024-09-12 21:45:22,515 INFO L399 AbstractCegarLoop]: === Iteration 79 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:45:22,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:22,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1011930807, now seen corresponding path program 76 times [2024-09-12 21:45:22,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:45:22,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561247031] [2024-09-12 21:45:22,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:45:22,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:45:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:45:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 21:45:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-09-12 21:45:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 21:45:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-09-12 21:45:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,794 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 21:45:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 21:45:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 21:45:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 21:45:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 21:45:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 21:45:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 21:45:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 21:45:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 21:45:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 21:45:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 21:45:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-09-12 21:45:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 21:45:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 21:45:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 21:45:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-09-12 21:45:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 21:45:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-09-12 21:45:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 21:45:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-09-12 21:45:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-09-12 21:45:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-09-12 21:45:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-09-12 21:45:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-09-12 21:45:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 21:45:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-09-12 21:45:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 21:45:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 21:45:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-09-12 21:45:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-09-12 21:45:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-09-12 21:45:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2024-09-12 21:45:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2024-09-12 21:45:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2024-09-12 21:45:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:23,823 INFO L134 CoverageAnalysis]: Checked inductivity of 5853 backedges. 817 proven. 2224 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2024-09-12 21:45:23,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:45:23,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561247031] [2024-09-12 21:45:23,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561247031] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:45:23,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327478454] [2024-09-12 21:45:23,823 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:45:23,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:45:23,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:45:23,824 INFO L229 MonitoredProcess]: Starting monitored process 78 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:45:23,825 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2024-09-12 21:45:23,933 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:45:23,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:45:23,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 84 conjuncts are in the unsatisfiable core [2024-09-12 21:45:23,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:45:24,107 INFO L134 CoverageAnalysis]: Checked inductivity of 5853 backedges. 856 proven. 2185 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2024-09-12 21:45:24,107 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:45:25,305 INFO L134 CoverageAnalysis]: Checked inductivity of 5853 backedges. 856 proven. 2185 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2024-09-12 21:45:25,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327478454] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:45:25,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:45:25,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 47 [2024-09-12 21:45:25,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14197437] [2024-09-12 21:45:25,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:45:25,306 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-09-12 21:45:25,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:45:25,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-09-12 21:45:25,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=874, Invalid=1288, Unknown=0, NotChecked=0, Total=2162 [2024-09-12 21:45:25,306 INFO L87 Difference]: Start difference. First operand 320 states and 321 transitions. Second operand has 47 states, 47 states have (on average 2.765957446808511) internal successors, (130), 45 states have internal predecessors, (130), 40 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 21:45:25,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:45:25,562 INFO L93 Difference]: Finished difference Result 333 states and 335 transitions. [2024-09-12 21:45:25,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-09-12 21:45:25,563 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 2.765957446808511) internal successors, (130), 45 states have internal predecessors, (130), 40 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Word has length 317 [2024-09-12 21:45:25,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:45:25,565 INFO L225 Difference]: With dead ends: 333 [2024-09-12 21:45:25,565 INFO L226 Difference]: Without dead ends: 331 [2024-09-12 21:45:25,565 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 794 GetRequests, 670 SyntacticMatches, 78 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1983 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=880, Invalid=1376, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 21:45:25,566 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:45:25,566 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 160 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:45:25,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-09-12 21:45:25,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 327. [2024-09-12 21:45:25,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 243 states have (on average 1.008230452674897) internal successors, (245), 244 states have internal predecessors, (245), 42 states have call successors, (42), 42 states have call predecessors, (42), 41 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-09-12 21:45:25,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 328 transitions. [2024-09-12 21:45:25,598 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 328 transitions. Word has length 317 [2024-09-12 21:45:25,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:45:25,598 INFO L474 AbstractCegarLoop]: Abstraction has 327 states and 328 transitions. [2024-09-12 21:45:25,599 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.765957446808511) internal successors, (130), 45 states have internal predecessors, (130), 40 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 21:45:25,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:25,599 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 328 transitions. [2024-09-12 21:45:25,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-09-12 21:45:25,600 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:45:25,600 INFO L216 NwaCegarLoop]: trace histogram [40, 40, 40, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:45:25,615 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2024-09-12 21:45:25,801 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2024-09-12 21:45:25,801 INFO L399 AbstractCegarLoop]: === Iteration 80 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:45:25,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:25,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1005382284, now seen corresponding path program 77 times [2024-09-12 21:45:25,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:45:25,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718283395] [2024-09-12 21:45:25,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:45:25,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:45:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:45:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 21:45:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,159 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-09-12 21:45:28,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 21:45:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,161 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-09-12 21:45:28,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 21:45:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 21:45:28,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 21:45:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 21:45:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 21:45:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 21:45:28,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,167 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 21:45:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,167 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 21:45:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 21:45:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,169 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 21:45:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 21:45:28,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,171 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-09-12 21:45:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 21:45:28,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 21:45:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 21:45:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,174 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-09-12 21:45:28,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,175 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 21:45:28,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,176 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-09-12 21:45:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 21:45:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-09-12 21:45:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,179 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-09-12 21:45:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,180 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-09-12 21:45:28,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,180 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-09-12 21:45:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,181 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-09-12 21:45:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,182 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 21:45:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,183 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-09-12 21:45:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 21:45:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,185 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 21:45:28,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,186 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-09-12 21:45:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,186 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-09-12 21:45:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,187 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-09-12 21:45:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2024-09-12 21:45:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,189 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2024-09-12 21:45:28,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2024-09-12 21:45:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,192 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2024-09-12 21:45:28,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:28,194 INFO L134 CoverageAnalysis]: Checked inductivity of 6123 backedges. 2264 proven. 895 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-09-12 21:45:28,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:45:28,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718283395] [2024-09-12 21:45:28,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718283395] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:45:28,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772474694] [2024-09-12 21:45:28,194 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:45:28,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:45:28,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:45:28,195 INFO L229 MonitoredProcess]: Starting monitored process 79 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:45:28,196 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2024-09-12 21:45:28,330 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 40 check-sat command(s) [2024-09-12 21:45:28,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:45:28,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 82 conjuncts are in the unsatisfiable core [2024-09-12 21:45:28,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:45:30,545 INFO L134 CoverageAnalysis]: Checked inductivity of 6123 backedges. 2379 proven. 780 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-09-12 21:45:30,545 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:45:32,369 INFO L134 CoverageAnalysis]: Checked inductivity of 6123 backedges. 2379 proven. 780 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-09-12 21:45:32,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772474694] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:45:32,369 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:45:32,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [83, 83, 83] total 125 [2024-09-12 21:45:32,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117287962] [2024-09-12 21:45:32,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:45:32,370 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 125 states [2024-09-12 21:45:32,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:45:32,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2024-09-12 21:45:32,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3490, Invalid=12010, Unknown=0, NotChecked=0, Total=15500 [2024-09-12 21:45:32,373 INFO L87 Difference]: Start difference. First operand 327 states and 328 transitions. Second operand has 125 states, 125 states have (on average 1.704) internal successors, (213), 125 states have internal predecessors, (213), 81 states have call successors, (82), 2 states have call predecessors, (82), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-09-12 21:45:33,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:45:33,034 INFO L93 Difference]: Finished difference Result 456 states and 497 transitions. [2024-09-12 21:45:33,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2024-09-12 21:45:33,034 INFO L78 Accepts]: Start accepts. Automaton has has 125 states, 125 states have (on average 1.704) internal successors, (213), 125 states have internal predecessors, (213), 81 states have call successors, (82), 2 states have call predecessors, (82), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) Word has length 324 [2024-09-12 21:45:33,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:45:33,036 INFO L225 Difference]: With dead ends: 456 [2024-09-12 21:45:33,036 INFO L226 Difference]: Without dead ends: 328 [2024-09-12 21:45:33,037 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 810 GetRequests, 608 SyntacticMatches, 79 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10101 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=3490, Invalid=12010, Unknown=0, NotChecked=0, Total=15500 [2024-09-12 21:45:33,037 INFO L434 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 21:45:33,037 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 983 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 21:45:33,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-09-12 21:45:33,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2024-09-12 21:45:33,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 244 states have (on average 1.0081967213114753) internal successors, (246), 245 states have internal predecessors, (246), 42 states have call successors, (42), 42 states have call predecessors, (42), 41 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-09-12 21:45:33,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 329 transitions. [2024-09-12 21:45:33,063 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 329 transitions. Word has length 324 [2024-09-12 21:45:33,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:45:33,063 INFO L474 AbstractCegarLoop]: Abstraction has 328 states and 329 transitions. [2024-09-12 21:45:33,064 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 125 states, 125 states have (on average 1.704) internal successors, (213), 125 states have internal predecessors, (213), 81 states have call successors, (82), 2 states have call predecessors, (82), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-09-12 21:45:33,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:33,064 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 329 transitions. [2024-09-12 21:45:33,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2024-09-12 21:45:33,065 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:45:33,065 INFO L216 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:45:33,084 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2024-09-12 21:45:33,269 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,79 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:45:33,270 INFO L399 AbstractCegarLoop]: === Iteration 81 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:45:33,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:33,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1273761896, now seen corresponding path program 78 times [2024-09-12 21:45:33,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:45:33,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061428535] [2024-09-12 21:45:33,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:45:33,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:45:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:45:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,849 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 21:45:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 21:45:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 21:45:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 21:45:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 21:45:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 21:45:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 21:45:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 21:45:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 21:45:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 21:45:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 21:45:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 21:45:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 21:45:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 21:45:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 21:45:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 21:45:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,868 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 21:45:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-09-12 21:45:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-09-12 21:45:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 21:45:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-09-12 21:45:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,874 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 21:45:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,875 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 21:45:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 21:45:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 21:45:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 21:45:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-09-12 21:45:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-09-12 21:45:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-09-12 21:45:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-09-12 21:45:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-09-12 21:45:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,886 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-09-12 21:45:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,888 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-09-12 21:45:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,889 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-09-12 21:45:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-09-12 21:45:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,892 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-09-12 21:45:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-09-12 21:45:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2024-09-12 21:45:34,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-09-12 21:45:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:34,898 INFO L134 CoverageAnalysis]: Checked inductivity of 6163 backedges. 858 proven. 2341 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-09-12 21:45:34,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:45:34,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061428535] [2024-09-12 21:45:34,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061428535] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:45:34,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496564257] [2024-09-12 21:45:34,898 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:45:34,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:45:34,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:45:34,900 INFO L229 MonitoredProcess]: Starting monitored process 80 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:45:34,902 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2024-09-12 21:45:35,080 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 40 check-sat command(s) [2024-09-12 21:45:35,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:45:35,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 86 conjuncts are in the unsatisfiable core [2024-09-12 21:45:35,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:45:35,267 INFO L134 CoverageAnalysis]: Checked inductivity of 6163 backedges. 898 proven. 2301 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-09-12 21:45:35,267 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:45:36,529 INFO L134 CoverageAnalysis]: Checked inductivity of 6163 backedges. 898 proven. 2301 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2024-09-12 21:45:36,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496564257] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:45:36,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:45:36,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45, 45] total 48 [2024-09-12 21:45:36,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508402571] [2024-09-12 21:45:36,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:45:36,530 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-09-12 21:45:36,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:45:36,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-09-12 21:45:36,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=916, Invalid=1340, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 21:45:36,531 INFO L87 Difference]: Start difference. First operand 328 states and 329 transitions. Second operand has 48 states, 48 states have (on average 2.7708333333333335) internal successors, (133), 46 states have internal predecessors, (133), 41 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-09-12 21:45:36,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:45:36,758 INFO L93 Difference]: Finished difference Result 341 states and 343 transitions. [2024-09-12 21:45:36,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-12 21:45:36,758 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 2.7708333333333335) internal successors, (133), 46 states have internal predecessors, (133), 41 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Word has length 325 [2024-09-12 21:45:36,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:45:36,760 INFO L225 Difference]: With dead ends: 341 [2024-09-12 21:45:36,760 INFO L226 Difference]: Without dead ends: 339 [2024-09-12 21:45:36,760 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 814 GetRequests, 687 SyntacticMatches, 80 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2074 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=922, Invalid=1430, Unknown=0, NotChecked=0, Total=2352 [2024-09-12 21:45:36,760 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:45:36,761 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 98 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:45:36,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-09-12 21:45:36,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 335. [2024-09-12 21:45:36,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 249 states have (on average 1.0080321285140563) internal successors, (251), 250 states have internal predecessors, (251), 43 states have call successors, (43), 43 states have call predecessors, (43), 42 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-09-12 21:45:36,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 336 transitions. [2024-09-12 21:45:36,783 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 336 transitions. Word has length 325 [2024-09-12 21:45:36,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:45:36,784 INFO L474 AbstractCegarLoop]: Abstraction has 335 states and 336 transitions. [2024-09-12 21:45:36,784 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.7708333333333335) internal successors, (133), 46 states have internal predecessors, (133), 41 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-09-12 21:45:36,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:36,784 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 336 transitions. [2024-09-12 21:45:36,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-09-12 21:45:36,786 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:45:36,786 INFO L216 NwaCegarLoop]: trace histogram [41, 41, 41, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:45:36,804 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Forceful destruction successful, exit code 0 [2024-09-12 21:45:36,987 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,80 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:45:36,987 INFO L399 AbstractCegarLoop]: === Iteration 82 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:45:36,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:36,987 INFO L85 PathProgramCache]: Analyzing trace with hash 2078753419, now seen corresponding path program 79 times [2024-09-12 21:45:36,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:45:36,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280641463] [2024-09-12 21:45:36,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:45:36,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:45:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:45:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 21:45:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 21:45:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 21:45:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,483 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 21:45:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 21:45:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 21:45:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 21:45:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 21:45:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 21:45:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 21:45:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 21:45:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,490 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 21:45:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 21:45:39,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 21:45:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 21:45:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,493 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 21:45:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,494 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 21:45:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-09-12 21:45:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,496 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-09-12 21:45:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 21:45:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-09-12 21:45:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,498 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 21:45:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 21:45:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 21:45:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 21:45:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,502 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 21:45:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-09-12 21:45:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-09-12 21:45:39,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-09-12 21:45:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-09-12 21:45:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-09-12 21:45:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-09-12 21:45:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-09-12 21:45:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-09-12 21:45:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-09-12 21:45:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-09-12 21:45:39,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-09-12 21:45:39,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2024-09-12 21:45:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-09-12 21:45:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-09-12 21:45:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,516 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 2382 proven. 938 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-09-12 21:45:39,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:45:39,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280641463] [2024-09-12 21:45:39,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280641463] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:45:39,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943696482] [2024-09-12 21:45:39,517 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 21:45:39,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:45:39,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:45:39,518 INFO L229 MonitoredProcess]: Starting monitored process 81 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:45:39,519 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2024-09-12 21:45:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:39,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 803 conjuncts, 84 conjuncts are in the unsatisfiable core [2024-09-12 21:45:39,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:45:42,008 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 2500 proven. 820 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-09-12 21:45:42,009 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:45:43,909 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 2500 proven. 820 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-09-12 21:45:43,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943696482] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:45:43,909 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:45:43,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85, 85] total 128 [2024-09-12 21:45:43,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833158285] [2024-09-12 21:45:43,909 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:45:43,910 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2024-09-12 21:45:43,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:45:43,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2024-09-12 21:45:43,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3659, Invalid=12597, Unknown=0, NotChecked=0, Total=16256 [2024-09-12 21:45:43,911 INFO L87 Difference]: Start difference. First operand 335 states and 336 transitions. Second operand has 128 states, 128 states have (on average 1.703125) internal successors, (218), 128 states have internal predecessors, (218), 83 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2024-09-12 21:45:44,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:45:44,474 INFO L93 Difference]: Finished difference Result 467 states and 509 transitions. [2024-09-12 21:45:44,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2024-09-12 21:45:44,475 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 128 states have (on average 1.703125) internal successors, (218), 128 states have internal predecessors, (218), 83 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) Word has length 332 [2024-09-12 21:45:44,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:45:44,477 INFO L225 Difference]: With dead ends: 467 [2024-09-12 21:45:44,477 INFO L226 Difference]: Without dead ends: 336 [2024-09-12 21:45:44,479 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 830 GetRequests, 623 SyntacticMatches, 81 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10600 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=3659, Invalid=12597, Unknown=0, NotChecked=0, Total=16256 [2024-09-12 21:45:44,479 INFO L434 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 21:45:44,479 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 793 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 21:45:44,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-09-12 21:45:44,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2024-09-12 21:45:44,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 250 states have (on average 1.008) internal successors, (252), 251 states have internal predecessors, (252), 43 states have call successors, (43), 43 states have call predecessors, (43), 42 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-09-12 21:45:44,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 337 transitions. [2024-09-12 21:45:44,514 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 337 transitions. Word has length 332 [2024-09-12 21:45:44,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:45:44,514 INFO L474 AbstractCegarLoop]: Abstraction has 336 states and 337 transitions. [2024-09-12 21:45:44,515 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 128 states have (on average 1.703125) internal successors, (218), 128 states have internal predecessors, (218), 83 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2024-09-12 21:45:44,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:44,515 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 337 transitions. [2024-09-12 21:45:44,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-09-12 21:45:44,516 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:45:44,517 INFO L216 NwaCegarLoop]: trace histogram [41, 41, 41, 41, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:45:44,534 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2024-09-12 21:45:44,717 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,81 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:45:44,717 INFO L399 AbstractCegarLoop]: === Iteration 83 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:45:44,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:44,718 INFO L85 PathProgramCache]: Analyzing trace with hash 644774807, now seen corresponding path program 80 times [2024-09-12 21:45:44,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:45:44,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126455466] [2024-09-12 21:45:44,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:45:44,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:45:44,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,131 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:45:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,132 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 21:45:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 21:45:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 21:45:46,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 21:45:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,136 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 21:45:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,137 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 21:45:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 21:45:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 21:45:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 21:45:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 21:45:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,141 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 21:45:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 21:45:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 21:45:46,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 21:45:46,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,144 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-09-12 21:45:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,145 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 21:45:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,146 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 21:45:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 21:45:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 21:45:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 21:45:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-09-12 21:45:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 21:45:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 21:45:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-09-12 21:45:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-09-12 21:45:46,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,153 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-09-12 21:45:46,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-09-12 21:45:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-09-12 21:45:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-09-12 21:45:46,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 21:45:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-09-12 21:45:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-09-12 21:45:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,159 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-09-12 21:45:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-09-12 21:45:46,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,161 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-09-12 21:45:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-09-12 21:45:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-09-12 21:45:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-09-12 21:45:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2024-09-12 21:45:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-09-12 21:45:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:46,166 INFO L134 CoverageAnalysis]: Checked inductivity of 6481 backedges. 900 proven. 2461 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-09-12 21:45:46,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:45:46,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126455466] [2024-09-12 21:45:46,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126455466] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:45:46,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975335344] [2024-09-12 21:45:46,166 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:45:46,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:45:46,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:45:46,168 INFO L229 MonitoredProcess]: Starting monitored process 82 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:45:46,168 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2024-09-12 21:45:46,278 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:45:46,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:45:46,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 808 conjuncts, 85 conjuncts are in the unsatisfiable core [2024-09-12 21:45:46,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:45:46,460 INFO L134 CoverageAnalysis]: Checked inductivity of 6481 backedges. 941 proven. 2420 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-09-12 21:45:46,460 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:45:47,799 INFO L134 CoverageAnalysis]: Checked inductivity of 6481 backedges. 941 proven. 2420 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-09-12 21:45:47,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975335344] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:45:47,800 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:45:47,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 49 [2024-09-12 21:45:47,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037854667] [2024-09-12 21:45:47,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:45:47,800 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-09-12 21:45:47,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:45:47,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-09-12 21:45:47,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=959, Invalid=1393, Unknown=0, NotChecked=0, Total=2352 [2024-09-12 21:45:47,801 INFO L87 Difference]: Start difference. First operand 336 states and 337 transitions. Second operand has 49 states, 49 states have (on average 2.7755102040816326) internal successors, (136), 47 states have internal predecessors, (136), 42 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-09-12 21:45:48,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:45:48,078 INFO L93 Difference]: Finished difference Result 349 states and 351 transitions. [2024-09-12 21:45:48,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-09-12 21:45:48,079 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 2.7755102040816326) internal successors, (136), 47 states have internal predecessors, (136), 42 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Word has length 333 [2024-09-12 21:45:48,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:45:48,081 INFO L225 Difference]: With dead ends: 349 [2024-09-12 21:45:48,081 INFO L226 Difference]: Without dead ends: 347 [2024-09-12 21:45:48,082 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 834 GetRequests, 702 SyntacticMatches, 84 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2251 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=965, Invalid=1485, Unknown=0, NotChecked=0, Total=2450 [2024-09-12 21:45:48,082 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:45:48,082 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 155 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:45:48,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-09-12 21:45:48,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 343. [2024-09-12 21:45:48,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 255 states have (on average 1.007843137254902) internal successors, (257), 256 states have internal predecessors, (257), 44 states have call successors, (44), 44 states have call predecessors, (44), 43 states have return successors, (43), 42 states have call predecessors, (43), 43 states have call successors, (43) [2024-09-12 21:45:48,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 344 transitions. [2024-09-12 21:45:48,118 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 344 transitions. Word has length 333 [2024-09-12 21:45:48,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:45:48,119 INFO L474 AbstractCegarLoop]: Abstraction has 343 states and 344 transitions. [2024-09-12 21:45:48,119 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 2.7755102040816326) internal successors, (136), 47 states have internal predecessors, (136), 42 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-09-12 21:45:48,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:48,119 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 344 transitions. [2024-09-12 21:45:48,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2024-09-12 21:45:48,121 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:45:48,121 INFO L216 NwaCegarLoop]: trace histogram [42, 42, 42, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:45:48,139 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Forceful destruction successful, exit code 0 [2024-09-12 21:45:48,321 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable82 [2024-09-12 21:45:48,322 INFO L399 AbstractCegarLoop]: === Iteration 84 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:45:48,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:48,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1291192748, now seen corresponding path program 81 times [2024-09-12 21:45:48,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:45:48,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338377881] [2024-09-12 21:45:48,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:45:48,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:45:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,118 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:45:51,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,119 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 21:45:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,120 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 21:45:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,121 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 21:45:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,122 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 21:45:51,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,123 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 21:45:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,124 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 21:45:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,124 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 21:45:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 21:45:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,126 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 21:45:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,127 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 21:45:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,128 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 21:45:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,128 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 21:45:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,129 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 21:45:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,130 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 21:45:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,131 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-09-12 21:45:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,132 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 21:45:51,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 21:45:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 21:45:51,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 21:45:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,137 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 21:45:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-09-12 21:45:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 21:45:51,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 21:45:51,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-09-12 21:45:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-09-12 21:45:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,144 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-09-12 21:45:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,145 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-09-12 21:45:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-09-12 21:45:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-09-12 21:45:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 21:45:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-09-12 21:45:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-09-12 21:45:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,153 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-09-12 21:45:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-09-12 21:45:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-09-12 21:45:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-09-12 21:45:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-09-12 21:45:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-09-12 21:45:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,161 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2024-09-12 21:45:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-09-12 21:45:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-09-12 21:45:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:51,165 INFO L134 CoverageAnalysis]: Checked inductivity of 6765 backedges. 2503 proven. 982 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-09-12 21:45:51,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:45:51,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338377881] [2024-09-12 21:45:51,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338377881] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:45:51,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128869120] [2024-09-12 21:45:51,166 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:45:51,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:45:51,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:45:51,167 INFO L229 MonitoredProcess]: Starting monitored process 83 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:45:51,168 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2024-09-12 21:45:51,314 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 42 check-sat command(s) [2024-09-12 21:45:51,314 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:45:51,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 86 conjuncts are in the unsatisfiable core [2024-09-12 21:45:51,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:45:53,710 INFO L134 CoverageAnalysis]: Checked inductivity of 6765 backedges. 2624 proven. 861 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-09-12 21:45:53,710 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:45:55,670 INFO L134 CoverageAnalysis]: Checked inductivity of 6765 backedges. 2624 proven. 861 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-09-12 21:45:55,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128869120] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:45:55,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:45:55,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 87, 87] total 131 [2024-09-12 21:45:55,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151135070] [2024-09-12 21:45:55,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:45:55,671 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 131 states [2024-09-12 21:45:55,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:45:55,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2024-09-12 21:45:55,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3832, Invalid=13198, Unknown=0, NotChecked=0, Total=17030 [2024-09-12 21:45:55,674 INFO L87 Difference]: Start difference. First operand 343 states and 344 transitions. Second operand has 131 states, 131 states have (on average 1.702290076335878) internal successors, (223), 131 states have internal predecessors, (223), 85 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-09-12 21:45:56,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:45:56,306 INFO L93 Difference]: Finished difference Result 478 states and 521 transitions. [2024-09-12 21:45:56,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2024-09-12 21:45:56,307 INFO L78 Accepts]: Start accepts. Automaton has has 131 states, 131 states have (on average 1.702290076335878) internal successors, (223), 131 states have internal predecessors, (223), 85 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) Word has length 340 [2024-09-12 21:45:56,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:45:56,309 INFO L225 Difference]: With dead ends: 478 [2024-09-12 21:45:56,309 INFO L226 Difference]: Without dead ends: 344 [2024-09-12 21:45:56,310 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 850 GetRequests, 638 SyntacticMatches, 83 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11111 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=3832, Invalid=13198, Unknown=0, NotChecked=0, Total=17030 [2024-09-12 21:45:56,311 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 21:45:56,311 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 936 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1456 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 21:45:56,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-09-12 21:45:56,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2024-09-12 21:45:56,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 256 states have (on average 1.0078125) internal successors, (258), 257 states have internal predecessors, (258), 44 states have call successors, (44), 44 states have call predecessors, (44), 43 states have return successors, (43), 42 states have call predecessors, (43), 43 states have call successors, (43) [2024-09-12 21:45:56,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 345 transitions. [2024-09-12 21:45:56,347 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 345 transitions. Word has length 340 [2024-09-12 21:45:56,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:45:56,347 INFO L474 AbstractCegarLoop]: Abstraction has 344 states and 345 transitions. [2024-09-12 21:45:56,348 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 131 states, 131 states have (on average 1.702290076335878) internal successors, (223), 131 states have internal predecessors, (223), 85 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-09-12 21:45:56,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:56,348 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 345 transitions. [2024-09-12 21:45:56,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-09-12 21:45:56,349 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:45:56,350 INFO L216 NwaCegarLoop]: trace histogram [42, 42, 42, 42, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:45:56,362 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2024-09-12 21:45:56,550 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,83 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:45:56,550 INFO L399 AbstractCegarLoop]: === Iteration 85 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:45:56,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:56,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1335265608, now seen corresponding path program 82 times [2024-09-12 21:45:56,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:45:56,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179866668] [2024-09-12 21:45:56,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:45:56,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:45:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:57,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:45:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:57,985 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 21:45:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:57,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 21:45:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:57,987 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 21:45:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:57,987 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 21:45:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:57,988 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 21:45:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:57,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 21:45:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:57,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 21:45:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:57,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 21:45:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:57,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 21:45:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:57,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 21:45:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:57,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 21:45:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:57,994 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 21:45:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:57,994 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 21:45:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:57,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 21:45:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:57,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-09-12 21:45:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:57,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 21:45:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:57,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 21:45:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:57,998 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 21:45:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:57,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-09-12 21:45:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 21:45:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-09-12 21:45:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-09-12 21:45:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 21:45:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,003 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 21:45:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 21:45:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-09-12 21:45:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-09-12 21:45:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-09-12 21:45:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-09-12 21:45:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 21:45:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-09-12 21:45:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,010 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-09-12 21:45:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,010 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-09-12 21:45:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 21:45:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,012 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2024-09-12 21:45:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,013 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-09-12 21:45:58,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,014 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2024-09-12 21:45:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-09-12 21:45:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,016 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2024-09-12 21:45:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2024-09-12 21:45:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-09-12 21:45:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:45:58,019 INFO L134 CoverageAnalysis]: Checked inductivity of 6807 backedges. 943 proven. 2584 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-09-12 21:45:58,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:45:58,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179866668] [2024-09-12 21:45:58,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179866668] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:45:58,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971077384] [2024-09-12 21:45:58,019 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:45:58,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:45:58,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:45:58,020 INFO L229 MonitoredProcess]: Starting monitored process 84 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:45:58,021 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2024-09-12 21:45:58,136 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:45:58,136 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:45:58,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 827 conjuncts, 90 conjuncts are in the unsatisfiable core [2024-09-12 21:45:58,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:45:58,326 INFO L134 CoverageAnalysis]: Checked inductivity of 6807 backedges. 985 proven. 2542 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-09-12 21:45:58,326 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:45:59,674 INFO L134 CoverageAnalysis]: Checked inductivity of 6807 backedges. 985 proven. 2542 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-09-12 21:45:59,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971077384] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:45:59,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:45:59,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 50 [2024-09-12 21:45:59,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078293161] [2024-09-12 21:45:59,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:45:59,674 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-09-12 21:45:59,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:45:59,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-09-12 21:45:59,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1003, Invalid=1447, Unknown=0, NotChecked=0, Total=2450 [2024-09-12 21:45:59,675 INFO L87 Difference]: Start difference. First operand 344 states and 345 transitions. Second operand has 50 states, 50 states have (on average 2.78) internal successors, (139), 48 states have internal predecessors, (139), 43 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-09-12 21:45:59,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:45:59,901 INFO L93 Difference]: Finished difference Result 357 states and 359 transitions. [2024-09-12 21:45:59,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-09-12 21:45:59,901 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.78) internal successors, (139), 48 states have internal predecessors, (139), 43 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Word has length 341 [2024-09-12 21:45:59,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:45:59,903 INFO L225 Difference]: With dead ends: 357 [2024-09-12 21:45:59,903 INFO L226 Difference]: Without dead ends: 355 [2024-09-12 21:45:59,904 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 854 GetRequests, 721 SyntacticMatches, 84 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2262 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1009, Invalid=1541, Unknown=0, NotChecked=0, Total=2550 [2024-09-12 21:45:59,904 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:45:59,904 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 128 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:45:59,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-09-12 21:45:59,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 351. [2024-09-12 21:45:59,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 261 states have (on average 1.0076628352490422) internal successors, (263), 262 states have internal predecessors, (263), 45 states have call successors, (45), 45 states have call predecessors, (45), 44 states have return successors, (44), 43 states have call predecessors, (44), 44 states have call successors, (44) [2024-09-12 21:45:59,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 352 transitions. [2024-09-12 21:45:59,941 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 352 transitions. Word has length 341 [2024-09-12 21:45:59,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:45:59,941 INFO L474 AbstractCegarLoop]: Abstraction has 351 states and 352 transitions. [2024-09-12 21:45:59,941 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.78) internal successors, (139), 48 states have internal predecessors, (139), 43 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-09-12 21:45:59,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:45:59,942 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 352 transitions. [2024-09-12 21:45:59,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2024-09-12 21:45:59,943 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:45:59,943 INFO L216 NwaCegarLoop]: trace histogram [43, 43, 43, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:45:59,961 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2024-09-12 21:46:00,144 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,84 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:46:00,144 INFO L399 AbstractCegarLoop]: === Iteration 86 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:46:00,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:46:00,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1597933717, now seen corresponding path program 83 times [2024-09-12 21:46:00,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:46:00,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280704901] [2024-09-12 21:46:00,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:46:00,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:46:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:46:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 21:46:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 21:46:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 21:46:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 21:46:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,832 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 21:46:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 21:46:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 21:46:02,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 21:46:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 21:46:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 21:46:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,837 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 21:46:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 21:46:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,839 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 21:46:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,839 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 21:46:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-09-12 21:46:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,841 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 21:46:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 21:46:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,843 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 21:46:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-09-12 21:46:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 21:46:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,845 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-09-12 21:46:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-09-12 21:46:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 21:46:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 21:46:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,849 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 21:46:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,849 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-09-12 21:46:02,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-09-12 21:46:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-09-12 21:46:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-09-12 21:46:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 21:46:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,854 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-09-12 21:46:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-09-12 21:46:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-09-12 21:46:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 21:46:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2024-09-12 21:46:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,858 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-09-12 21:46:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2024-09-12 21:46:02,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-09-12 21:46:02,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2024-09-12 21:46:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2024-09-12 21:46:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-09-12 21:46:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-09-12 21:46:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:02,864 INFO L134 CoverageAnalysis]: Checked inductivity of 7098 backedges. 2627 proven. 1027 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-09-12 21:46:02,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:46:02,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280704901] [2024-09-12 21:46:02,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280704901] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:46:02,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286058705] [2024-09-12 21:46:02,865 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:46:02,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:46:02,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:46:02,867 INFO L229 MonitoredProcess]: Starting monitored process 85 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:46:02,867 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2024-09-12 21:46:03,012 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 43 check-sat command(s) [2024-09-12 21:46:03,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:46:03,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 88 conjuncts are in the unsatisfiable core [2024-09-12 21:46:03,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:46:05,529 INFO L134 CoverageAnalysis]: Checked inductivity of 7098 backedges. 2751 proven. 903 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-09-12 21:46:05,529 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:46:07,568 INFO L134 CoverageAnalysis]: Checked inductivity of 7098 backedges. 2751 proven. 903 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-09-12 21:46:07,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286058705] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:46:07,568 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:46:07,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [89, 89, 89] total 134 [2024-09-12 21:46:07,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257771493] [2024-09-12 21:46:07,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:46:07,569 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 134 states [2024-09-12 21:46:07,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:46:07,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2024-09-12 21:46:07,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4009, Invalid=13813, Unknown=0, NotChecked=0, Total=17822 [2024-09-12 21:46:07,572 INFO L87 Difference]: Start difference. First operand 351 states and 352 transitions. Second operand has 134 states, 134 states have (on average 1.7014925373134329) internal successors, (228), 134 states have internal predecessors, (228), 87 states have call successors, (88), 2 states have call predecessors, (88), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2024-09-12 21:46:08,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:46:08,425 INFO L93 Difference]: Finished difference Result 489 states and 533 transitions. [2024-09-12 21:46:08,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2024-09-12 21:46:08,426 INFO L78 Accepts]: Start accepts. Automaton has has 134 states, 134 states have (on average 1.7014925373134329) internal successors, (228), 134 states have internal predecessors, (228), 87 states have call successors, (88), 2 states have call predecessors, (88), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Word has length 348 [2024-09-12 21:46:08,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:46:08,429 INFO L225 Difference]: With dead ends: 489 [2024-09-12 21:46:08,429 INFO L226 Difference]: Without dead ends: 352 [2024-09-12 21:46:08,430 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 870 GetRequests, 653 SyntacticMatches, 85 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11634 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=4009, Invalid=13813, Unknown=0, NotChecked=0, Total=17822 [2024-09-12 21:46:08,431 INFO L434 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 1576 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 1576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 21:46:08,432 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1243 Invalid, 1576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1576 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 21:46:08,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-09-12 21:46:08,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2024-09-12 21:46:08,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 262 states have (on average 1.0076335877862594) internal successors, (264), 263 states have internal predecessors, (264), 45 states have call successors, (45), 45 states have call predecessors, (45), 44 states have return successors, (44), 43 states have call predecessors, (44), 44 states have call successors, (44) [2024-09-12 21:46:08,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 353 transitions. [2024-09-12 21:46:08,470 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 353 transitions. Word has length 348 [2024-09-12 21:46:08,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:46:08,471 INFO L474 AbstractCegarLoop]: Abstraction has 352 states and 353 transitions. [2024-09-12 21:46:08,471 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 134 states, 134 states have (on average 1.7014925373134329) internal successors, (228), 134 states have internal predecessors, (228), 87 states have call successors, (88), 2 states have call predecessors, (88), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2024-09-12 21:46:08,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:46:08,471 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 353 transitions. [2024-09-12 21:46:08,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-09-12 21:46:08,473 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:46:08,474 INFO L216 NwaCegarLoop]: trace histogram [43, 43, 43, 43, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:46:08,491 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Forceful destruction successful, exit code 0 [2024-09-12 21:46:08,674 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,85 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:46:08,675 INFO L399 AbstractCegarLoop]: === Iteration 87 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:46:08,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:46:08,675 INFO L85 PathProgramCache]: Analyzing trace with hash -139650953, now seen corresponding path program 84 times [2024-09-12 21:46:08,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:46:08,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425910203] [2024-09-12 21:46:08,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:46:08,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:46:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:46:10,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,294 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 21:46:10,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 21:46:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 21:46:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 21:46:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,297 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 21:46:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,298 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 21:46:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 21:46:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 21:46:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,300 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 21:46:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,301 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 21:46:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,302 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 21:46:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,303 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 21:46:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,303 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-09-12 21:46:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,304 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 21:46:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 21:46:10,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,306 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-09-12 21:46:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,306 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 21:46:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,307 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 21:46:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,308 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-09-12 21:46:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,309 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-12 21:46:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-09-12 21:46:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-09-12 21:46:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 21:46:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,312 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-09-12 21:46:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 21:46:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,314 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-09-12 21:46:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 21:46:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 21:46:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-09-12 21:46:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-09-12 21:46:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-09-12 21:46:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2024-09-12 21:46:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,320 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-09-12 21:46:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-12 21:46:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-09-12 21:46:10,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-09-12 21:46:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-09-12 21:46:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,324 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-09-12 21:46:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-09-12 21:46:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2024-09-12 21:46:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-09-12 21:46:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2024-09-12 21:46:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:10,329 INFO L134 CoverageAnalysis]: Checked inductivity of 7141 backedges. 987 proven. 2710 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-09-12 21:46:10,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:46:10,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425910203] [2024-09-12 21:46:10,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425910203] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:46:10,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512961896] [2024-09-12 21:46:10,329 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:46:10,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:46:10,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:46:10,330 INFO L229 MonitoredProcess]: Starting monitored process 86 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:46:10,331 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2024-09-12 21:46:10,483 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 43 check-sat command(s) [2024-09-12 21:46:10,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:46:10,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 92 conjuncts are in the unsatisfiable core [2024-09-12 21:46:10,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:46:10,678 INFO L134 CoverageAnalysis]: Checked inductivity of 7141 backedges. 1030 proven. 2667 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-09-12 21:46:10,678 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:46:12,077 INFO L134 CoverageAnalysis]: Checked inductivity of 7141 backedges. 1030 proven. 2667 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-09-12 21:46:12,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512961896] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:46:12,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:46:12,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 51 [2024-09-12 21:46:12,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930966618] [2024-09-12 21:46:12,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:46:12,078 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-09-12 21:46:12,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:46:12,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-09-12 21:46:12,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1048, Invalid=1502, Unknown=0, NotChecked=0, Total=2550 [2024-09-12 21:46:12,079 INFO L87 Difference]: Start difference. First operand 352 states and 353 transitions. Second operand has 51 states, 51 states have (on average 2.784313725490196) internal successors, (142), 49 states have internal predecessors, (142), 44 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-09-12 21:46:12,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:46:12,327 INFO L93 Difference]: Finished difference Result 365 states and 367 transitions. [2024-09-12 21:46:12,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-09-12 21:46:12,328 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 2.784313725490196) internal successors, (142), 49 states have internal predecessors, (142), 44 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Word has length 349 [2024-09-12 21:46:12,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:46:12,330 INFO L225 Difference]: With dead ends: 365 [2024-09-12 21:46:12,330 INFO L226 Difference]: Without dead ends: 363 [2024-09-12 21:46:12,330 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 874 GetRequests, 738 SyntacticMatches, 86 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2359 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1054, Invalid=1598, Unknown=0, NotChecked=0, Total=2652 [2024-09-12 21:46:12,330 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:46:12,330 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 132 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:46:12,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-09-12 21:46:12,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 359. [2024-09-12 21:46:12,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 267 states have (on average 1.0074906367041199) internal successors, (269), 268 states have internal predecessors, (269), 46 states have call successors, (46), 46 states have call predecessors, (46), 45 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2024-09-12 21:46:12,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 360 transitions. [2024-09-12 21:46:12,355 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 360 transitions. Word has length 349 [2024-09-12 21:46:12,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:46:12,355 INFO L474 AbstractCegarLoop]: Abstraction has 359 states and 360 transitions. [2024-09-12 21:46:12,355 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.784313725490196) internal successors, (142), 49 states have internal predecessors, (142), 44 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-09-12 21:46:12,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:46:12,356 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 360 transitions. [2024-09-12 21:46:12,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2024-09-12 21:46:12,357 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:46:12,357 INFO L216 NwaCegarLoop]: trace histogram [44, 44, 44, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:46:12,375 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0 [2024-09-12 21:46:12,558 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,86 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:46:12,558 INFO L399 AbstractCegarLoop]: === Iteration 88 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:46:12,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:46:12,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1448554700, now seen corresponding path program 85 times [2024-09-12 21:46:12,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:46:12,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484279731] [2024-09-12 21:46:12,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:46:12,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:46:12,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:46:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,379 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 21:46:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 21:46:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 21:46:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 21:46:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 21:46:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,384 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 21:46:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 21:46:15,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 21:46:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,386 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 21:46:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 21:46:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 21:46:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 21:46:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-09-12 21:46:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 21:46:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 21:46:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-09-12 21:46:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 21:46:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 21:46:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-09-12 21:46:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-12 21:46:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-09-12 21:46:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-09-12 21:46:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 21:46:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,399 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-09-12 21:46:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 21:46:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-09-12 21:46:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 21:46:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 21:46:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,403 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-09-12 21:46:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,404 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-09-12 21:46:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-09-12 21:46:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2024-09-12 21:46:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-09-12 21:46:15,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-12 21:46:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-09-12 21:46:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-09-12 21:46:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-09-12 21:46:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-09-12 21:46:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-09-12 21:46:15,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2024-09-12 21:46:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-09-12 21:46:15,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2024-09-12 21:46:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-09-12 21:46:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,417 INFO L134 CoverageAnalysis]: Checked inductivity of 7439 backedges. 2754 proven. 1073 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-09-12 21:46:15,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:46:15,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484279731] [2024-09-12 21:46:15,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484279731] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:46:15,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441632062] [2024-09-12 21:46:15,417 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 21:46:15,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:46:15,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:46:15,418 INFO L229 MonitoredProcess]: Starting monitored process 87 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:46:15,419 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2024-09-12 21:46:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:15,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 90 conjuncts are in the unsatisfiable core [2024-09-12 21:46:15,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:46:18,156 INFO L134 CoverageAnalysis]: Checked inductivity of 7439 backedges. 2881 proven. 946 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-09-12 21:46:18,156 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:46:20,295 INFO L134 CoverageAnalysis]: Checked inductivity of 7439 backedges. 2881 proven. 946 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-09-12 21:46:20,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441632062] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:46:20,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:46:20,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [91, 91, 91] total 137 [2024-09-12 21:46:20,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664550209] [2024-09-12 21:46:20,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:46:20,296 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 137 states [2024-09-12 21:46:20,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:46:20,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2024-09-12 21:46:20,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4190, Invalid=14442, Unknown=0, NotChecked=0, Total=18632 [2024-09-12 21:46:20,299 INFO L87 Difference]: Start difference. First operand 359 states and 360 transitions. Second operand has 137 states, 137 states have (on average 1.7007299270072993) internal successors, (233), 137 states have internal predecessors, (233), 89 states have call successors, (90), 2 states have call predecessors, (90), 1 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-09-12 21:46:20,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:46:20,858 INFO L93 Difference]: Finished difference Result 500 states and 545 transitions. [2024-09-12 21:46:20,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2024-09-12 21:46:20,859 INFO L78 Accepts]: Start accepts. Automaton has has 137 states, 137 states have (on average 1.7007299270072993) internal successors, (233), 137 states have internal predecessors, (233), 89 states have call successors, (90), 2 states have call predecessors, (90), 1 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) Word has length 356 [2024-09-12 21:46:20,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:46:20,861 INFO L225 Difference]: With dead ends: 500 [2024-09-12 21:46:20,861 INFO L226 Difference]: Without dead ends: 360 [2024-09-12 21:46:20,862 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 890 GetRequests, 668 SyntacticMatches, 87 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12169 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=4190, Invalid=14442, Unknown=0, NotChecked=0, Total=18632 [2024-09-12 21:46:20,862 INFO L434 NwaCegarLoop]: 96 mSDtfsCounter, 0 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 21:46:20,862 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 501 Invalid, 1134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1134 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 21:46:20,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-09-12 21:46:20,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2024-09-12 21:46:20,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 268 states have (on average 1.007462686567164) internal successors, (270), 269 states have internal predecessors, (270), 46 states have call successors, (46), 46 states have call predecessors, (46), 45 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2024-09-12 21:46:20,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 361 transitions. [2024-09-12 21:46:20,894 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 361 transitions. Word has length 356 [2024-09-12 21:46:20,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:46:20,894 INFO L474 AbstractCegarLoop]: Abstraction has 360 states and 361 transitions. [2024-09-12 21:46:20,894 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 137 states, 137 states have (on average 1.7007299270072993) internal successors, (233), 137 states have internal predecessors, (233), 89 states have call successors, (90), 2 states have call predecessors, (90), 1 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-09-12 21:46:20,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:46:20,894 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 361 transitions. [2024-09-12 21:46:20,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2024-09-12 21:46:20,895 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:46:20,895 INFO L216 NwaCegarLoop]: trace histogram [44, 44, 44, 44, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:46:20,908 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2024-09-12 21:46:21,095 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2024-09-12 21:46:21,096 INFO L399 AbstractCegarLoop]: === Iteration 89 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:46:21,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:46:21,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1891170856, now seen corresponding path program 86 times [2024-09-12 21:46:21,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:46:21,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666915673] [2024-09-12 21:46:21,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:46:21,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:46:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:46:22,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 21:46:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 21:46:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 21:46:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 21:46:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 21:46:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 21:46:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-09-12 21:46:22,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 21:46:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 21:46:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,690 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 21:46:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 21:46:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 21:46:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-09-12 21:46:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 21:46:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-09-12 21:46:22,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 21:46:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-09-12 21:46:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 21:46:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,697 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-09-12 21:46:22,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 21:46:22,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-09-12 21:46:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-09-12 21:46:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,702 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-09-12 21:46:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-09-12 21:46:22,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-09-12 21:46:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-09-12 21:46:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-09-12 21:46:22,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-12 21:46:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,709 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-09-12 21:46:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,709 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-09-12 21:46:22,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-09-12 21:46:22,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,711 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 21:46:22,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2024-09-12 21:46:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,713 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-09-12 21:46:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,713 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2024-09-12 21:46:22,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2024-09-12 21:46:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,715 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2024-09-12 21:46:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,716 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2024-09-12 21:46:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,717 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2024-09-12 21:46:22,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,717 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-09-12 21:46:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,718 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-09-12 21:46:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,719 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-09-12 21:46:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-09-12 21:46:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:22,721 INFO L134 CoverageAnalysis]: Checked inductivity of 7483 backedges. 1032 proven. 2839 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-09-12 21:46:22,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:46:22,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666915673] [2024-09-12 21:46:22,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666915673] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:46:22,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629707762] [2024-09-12 21:46:22,722 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:46:22,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:46:22,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:46:22,723 INFO L229 MonitoredProcess]: Starting monitored process 88 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:46:22,723 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2024-09-12 21:46:22,839 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:46:22,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:46:22,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 91 conjuncts are in the unsatisfiable core [2024-09-12 21:46:22,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:46:23,024 INFO L134 CoverageAnalysis]: Checked inductivity of 7483 backedges. 1076 proven. 2795 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-09-12 21:46:23,024 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:46:24,521 INFO L134 CoverageAnalysis]: Checked inductivity of 7483 backedges. 1076 proven. 2795 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-09-12 21:46:24,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629707762] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:46:24,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:46:24,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 52 [2024-09-12 21:46:24,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642492248] [2024-09-12 21:46:24,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:46:24,522 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-09-12 21:46:24,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:46:24,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-09-12 21:46:24,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1094, Invalid=1558, Unknown=0, NotChecked=0, Total=2652 [2024-09-12 21:46:24,523 INFO L87 Difference]: Start difference. First operand 360 states and 361 transitions. Second operand has 52 states, 52 states have (on average 2.7884615384615383) internal successors, (145), 50 states have internal predecessors, (145), 45 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-09-12 21:46:24,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:46:24,791 INFO L93 Difference]: Finished difference Result 373 states and 375 transitions. [2024-09-12 21:46:24,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-09-12 21:46:24,792 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.7884615384615383) internal successors, (145), 50 states have internal predecessors, (145), 45 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 357 [2024-09-12 21:46:24,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:46:24,794 INFO L225 Difference]: With dead ends: 373 [2024-09-12 21:46:24,794 INFO L226 Difference]: Without dead ends: 371 [2024-09-12 21:46:24,794 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 894 GetRequests, 753 SyntacticMatches, 90 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2548 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1100, Invalid=1656, Unknown=0, NotChecked=0, Total=2756 [2024-09-12 21:46:24,794 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:46:24,794 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 130 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:46:24,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-09-12 21:46:24,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 367. [2024-09-12 21:46:24,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 273 states have (on average 1.0073260073260073) internal successors, (275), 274 states have internal predecessors, (275), 47 states have call successors, (47), 47 states have call predecessors, (47), 46 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2024-09-12 21:46:24,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 368 transitions. [2024-09-12 21:46:24,822 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 368 transitions. Word has length 357 [2024-09-12 21:46:24,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:46:24,822 INFO L474 AbstractCegarLoop]: Abstraction has 367 states and 368 transitions. [2024-09-12 21:46:24,822 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 2.7884615384615383) internal successors, (145), 50 states have internal predecessors, (145), 45 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-09-12 21:46:24,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:46:24,822 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 368 transitions. [2024-09-12 21:46:24,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-09-12 21:46:24,824 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:46:24,824 INFO L216 NwaCegarLoop]: trace histogram [45, 45, 45, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:46:24,842 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2024-09-12 21:46:25,025 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2024-09-12 21:46:25,025 INFO L399 AbstractCegarLoop]: === Iteration 90 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:46:25,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:46:25,026 INFO L85 PathProgramCache]: Analyzing trace with hash -2089114549, now seen corresponding path program 87 times [2024-09-12 21:46:25,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:46:25,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799754243] [2024-09-12 21:46:25,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:46:25,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:46:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:46:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 21:46:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 21:46:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,048 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 21:46:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 21:46:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 21:46:28,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,050 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 21:46:28,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-09-12 21:46:28,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 21:46:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,053 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 21:46:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 21:46:28,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 21:46:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,056 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 21:46:28,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,057 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-09-12 21:46:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 21:46:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-09-12 21:46:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 21:46:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,062 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-09-12 21:46:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 21:46:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,065 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-09-12 21:46:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,066 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 21:46:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,067 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-09-12 21:46:28,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,068 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-09-12 21:46:28,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,070 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-09-12 21:46:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,071 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-09-12 21:46:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-09-12 21:46:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,073 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-09-12 21:46:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-09-12 21:46:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-12 21:46:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,077 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-09-12 21:46:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,078 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-09-12 21:46:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,079 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-09-12 21:46:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,080 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 21:46:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,082 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2024-09-12 21:46:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,083 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-09-12 21:46:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,084 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2024-09-12 21:46:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,085 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2024-09-12 21:46:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,086 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2024-09-12 21:46:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,088 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2024-09-12 21:46:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,089 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2024-09-12 21:46:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,090 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-09-12 21:46:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,091 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-09-12 21:46:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,092 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-09-12 21:46:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-09-12 21:46:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,094 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-09-12 21:46:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:28,095 INFO L134 CoverageAnalysis]: Checked inductivity of 7788 backedges. 2884 proven. 1120 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-09-12 21:46:28,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:46:28,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799754243] [2024-09-12 21:46:28,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799754243] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:46:28,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502692433] [2024-09-12 21:46:28,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:46:28,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:46:28,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:46:28,097 INFO L229 MonitoredProcess]: Starting monitored process 89 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:46:28,098 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2024-09-12 21:46:28,260 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 45 check-sat command(s) [2024-09-12 21:46:28,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:46:28,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 92 conjuncts are in the unsatisfiable core [2024-09-12 21:46:28,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:46:30,980 INFO L134 CoverageAnalysis]: Checked inductivity of 7788 backedges. 3014 proven. 990 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-09-12 21:46:30,981 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:46:33,218 INFO L134 CoverageAnalysis]: Checked inductivity of 7788 backedges. 3014 proven. 990 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-09-12 21:46:33,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502692433] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:46:33,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:46:33,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 93, 93] total 140 [2024-09-12 21:46:33,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498440922] [2024-09-12 21:46:33,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:46:33,219 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 140 states [2024-09-12 21:46:33,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:46:33,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 140 interpolants. [2024-09-12 21:46:33,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4375, Invalid=15085, Unknown=0, NotChecked=0, Total=19460 [2024-09-12 21:46:33,221 INFO L87 Difference]: Start difference. First operand 367 states and 368 transitions. Second operand has 140 states, 140 states have (on average 1.7) internal successors, (238), 140 states have internal predecessors, (238), 91 states have call successors, (92), 2 states have call predecessors, (92), 1 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-09-12 21:46:33,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:46:33,870 INFO L93 Difference]: Finished difference Result 511 states and 557 transitions. [2024-09-12 21:46:33,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2024-09-12 21:46:33,870 INFO L78 Accepts]: Start accepts. Automaton has has 140 states, 140 states have (on average 1.7) internal successors, (238), 140 states have internal predecessors, (238), 91 states have call successors, (92), 2 states have call predecessors, (92), 1 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) Word has length 364 [2024-09-12 21:46:33,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:46:33,873 INFO L225 Difference]: With dead ends: 511 [2024-09-12 21:46:33,873 INFO L226 Difference]: Without dead ends: 368 [2024-09-12 21:46:33,874 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 910 GetRequests, 683 SyntacticMatches, 89 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12716 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=4375, Invalid=15085, Unknown=0, NotChecked=0, Total=19460 [2024-09-12 21:46:33,874 INFO L434 NwaCegarLoop]: 98 mSDtfsCounter, 0 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 21:46:33,874 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1055 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 21:46:33,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-09-12 21:46:33,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2024-09-12 21:46:33,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 274 states have (on average 1.0072992700729928) internal successors, (276), 275 states have internal predecessors, (276), 47 states have call successors, (47), 47 states have call predecessors, (47), 46 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2024-09-12 21:46:33,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 369 transitions. [2024-09-12 21:46:33,900 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 369 transitions. Word has length 364 [2024-09-12 21:46:33,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:46:33,900 INFO L474 AbstractCegarLoop]: Abstraction has 368 states and 369 transitions. [2024-09-12 21:46:33,901 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 140 states, 140 states have (on average 1.7) internal successors, (238), 140 states have internal predecessors, (238), 91 states have call successors, (92), 2 states have call predecessors, (92), 1 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-09-12 21:46:33,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:46:33,901 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 369 transitions. [2024-09-12 21:46:33,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2024-09-12 21:46:33,903 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:46:33,903 INFO L216 NwaCegarLoop]: trace histogram [45, 45, 45, 45, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:46:33,920 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2024-09-12 21:46:34,103 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,89 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:46:34,103 INFO L399 AbstractCegarLoop]: === Iteration 91 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:46:34,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:46:34,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1090170199, now seen corresponding path program 88 times [2024-09-12 21:46:34,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:46:34,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384233049] [2024-09-12 21:46:34,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:46:34,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:46:34,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:46:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,762 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 21:46:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,763 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-09-12 21:46:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-09-12 21:46:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,765 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 21:46:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,765 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 21:46:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 21:46:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,767 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 21:46:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,768 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 21:46:35,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,768 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 21:46:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,769 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-09-12 21:46:35,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,770 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 21:46:35,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 21:46:35,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,772 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 21:46:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,772 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 21:46:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-09-12 21:46:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,774 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 21:46:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-09-12 21:46:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-09-12 21:46:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 21:46:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 21:46:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,778 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 21:46:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-09-12 21:46:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-09-12 21:46:35,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 21:46:35,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-09-12 21:46:35,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 21:46:35,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-09-12 21:46:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,784 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 21:46:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-09-12 21:46:35,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-09-12 21:46:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 21:46:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,788 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-09-12 21:46:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2024-09-12 21:46:35,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-09-12 21:46:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-09-12 21:46:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-09-12 21:46:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2024-09-12 21:46:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2024-09-12 21:46:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-09-12 21:46:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-09-12 21:46:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-09-12 21:46:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-09-12 21:46:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-09-12 21:46:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-09-12 21:46:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:35,804 INFO L134 CoverageAnalysis]: Checked inductivity of 7833 backedges. 1078 proven. 2971 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-09-12 21:46:35,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:46:35,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384233049] [2024-09-12 21:46:35,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384233049] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:46:35,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984788307] [2024-09-12 21:46:35,804 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:46:35,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:46:35,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:46:35,806 INFO L229 MonitoredProcess]: Starting monitored process 90 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:46:35,808 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2024-09-12 21:46:35,930 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:46:35,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:46:35,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-09-12 21:46:35,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:46:36,119 INFO L134 CoverageAnalysis]: Checked inductivity of 7833 backedges. 1123 proven. 2926 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-09-12 21:46:36,119 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:46:37,648 INFO L134 CoverageAnalysis]: Checked inductivity of 7833 backedges. 1123 proven. 2926 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-09-12 21:46:37,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984788307] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:46:37,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:46:37,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 53 [2024-09-12 21:46:37,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425802050] [2024-09-12 21:46:37,649 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:46:37,649 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-09-12 21:46:37,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:46:37,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-09-12 21:46:37,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1141, Invalid=1615, Unknown=0, NotChecked=0, Total=2756 [2024-09-12 21:46:37,650 INFO L87 Difference]: Start difference. First operand 368 states and 369 transitions. Second operand has 53 states, 53 states have (on average 2.792452830188679) internal successors, (148), 51 states have internal predecessors, (148), 46 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-09-12 21:46:37,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:46:37,931 INFO L93 Difference]: Finished difference Result 381 states and 383 transitions. [2024-09-12 21:46:37,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-09-12 21:46:37,931 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 2.792452830188679) internal successors, (148), 51 states have internal predecessors, (148), 46 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Word has length 365 [2024-09-12 21:46:37,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:46:37,933 INFO L225 Difference]: With dead ends: 381 [2024-09-12 21:46:37,933 INFO L226 Difference]: Without dead ends: 379 [2024-09-12 21:46:37,934 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 914 GetRequests, 772 SyntacticMatches, 90 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2559 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1147, Invalid=1715, Unknown=0, NotChecked=0, Total=2862 [2024-09-12 21:46:37,934 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:46:37,934 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 159 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:46:37,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-09-12 21:46:37,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 375. [2024-09-12 21:46:37,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 279 states have (on average 1.007168458781362) internal successors, (281), 280 states have internal predecessors, (281), 48 states have call successors, (48), 48 states have call predecessors, (48), 47 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-09-12 21:46:37,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 376 transitions. [2024-09-12 21:46:37,969 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 376 transitions. Word has length 365 [2024-09-12 21:46:37,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:46:37,970 INFO L474 AbstractCegarLoop]: Abstraction has 375 states and 376 transitions. [2024-09-12 21:46:37,970 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 2.792452830188679) internal successors, (148), 51 states have internal predecessors, (148), 46 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-09-12 21:46:37,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:46:37,970 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 376 transitions. [2024-09-12 21:46:37,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2024-09-12 21:46:37,971 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:46:37,971 INFO L216 NwaCegarLoop]: trace histogram [46, 46, 46, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:46:37,984 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Forceful destruction successful, exit code 0 [2024-09-12 21:46:38,171 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,90 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:46:38,172 INFO L399 AbstractCegarLoop]: === Iteration 92 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:46:38,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:46:38,172 INFO L85 PathProgramCache]: Analyzing trace with hash 2137153516, now seen corresponding path program 89 times [2024-09-12 21:46:38,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:46:38,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210183554] [2024-09-12 21:46:38,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:46:38,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:46:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:46:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,282 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 21:46:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,283 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-09-12 21:46:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,285 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-09-12 21:46:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,286 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 21:46:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,287 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 21:46:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,288 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 21:46:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 21:46:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,290 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 21:46:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,290 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 21:46:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,291 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-09-12 21:46:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,292 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 21:46:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 21:46:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,294 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 21:46:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 21:46:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-09-12 21:46:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 21:46:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,297 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-09-12 21:46:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,298 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-09-12 21:46:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 21:46:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,300 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 21:46:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,301 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 21:46:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,301 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-09-12 21:46:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,302 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-09-12 21:46:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,303 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 21:46:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,304 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-09-12 21:46:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 21:46:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-09-12 21:46:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,306 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 21:46:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,307 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-09-12 21:46:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,308 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-09-12 21:46:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,309 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 21:46:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-09-12 21:46:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2024-09-12 21:46:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-09-12 21:46:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,312 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-09-12 21:46:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-09-12 21:46:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,314 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2024-09-12 21:46:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2024-09-12 21:46:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-09-12 21:46:41,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-09-12 21:46:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-09-12 21:46:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-09-12 21:46:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-09-12 21:46:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,320 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-09-12 21:46:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-09-12 21:46:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:41,322 INFO L134 CoverageAnalysis]: Checked inductivity of 8145 backedges. 3017 proven. 1168 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2024-09-12 21:46:41,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:46:41,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210183554] [2024-09-12 21:46:41,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210183554] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:46:41,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432510192] [2024-09-12 21:46:41,323 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:46:41,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:46:41,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:46:41,324 INFO L229 MonitoredProcess]: Starting monitored process 91 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:46:41,324 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2024-09-12 21:46:41,480 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 46 check-sat command(s) [2024-09-12 21:46:41,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:46:41,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 94 conjuncts are in the unsatisfiable core [2024-09-12 21:46:41,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:46:44,316 INFO L134 CoverageAnalysis]: Checked inductivity of 8145 backedges. 3150 proven. 1035 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2024-09-12 21:46:44,316 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:46:46,624 INFO L134 CoverageAnalysis]: Checked inductivity of 8145 backedges. 3150 proven. 1035 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2024-09-12 21:46:46,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432510192] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:46:46,624 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:46:46,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 143 [2024-09-12 21:46:46,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286500446] [2024-09-12 21:46:46,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:46:46,625 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 143 states [2024-09-12 21:46:46,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:46:46,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2024-09-12 21:46:46,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4564, Invalid=15742, Unknown=0, NotChecked=0, Total=20306 [2024-09-12 21:46:46,628 INFO L87 Difference]: Start difference. First operand 375 states and 376 transitions. Second operand has 143 states, 143 states have (on average 1.6993006993006994) internal successors, (243), 143 states have internal predecessors, (243), 93 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2024-09-12 21:46:47,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:46:47,365 INFO L93 Difference]: Finished difference Result 522 states and 569 transitions. [2024-09-12 21:46:47,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2024-09-12 21:46:47,366 INFO L78 Accepts]: Start accepts. Automaton has has 143 states, 143 states have (on average 1.6993006993006994) internal successors, (243), 143 states have internal predecessors, (243), 93 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) Word has length 372 [2024-09-12 21:46:47,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:46:47,368 INFO L225 Difference]: With dead ends: 522 [2024-09-12 21:46:47,368 INFO L226 Difference]: Without dead ends: 376 [2024-09-12 21:46:47,369 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 930 GetRequests, 698 SyntacticMatches, 91 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13275 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=4564, Invalid=15742, Unknown=0, NotChecked=0, Total=20306 [2024-09-12 21:46:47,369 INFO L434 NwaCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 1593 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 21:46:47,369 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1123 Invalid, 1593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1593 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 21:46:47,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-09-12 21:46:47,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2024-09-12 21:46:47,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 280 states have (on average 1.0071428571428571) internal successors, (282), 281 states have internal predecessors, (282), 48 states have call successors, (48), 48 states have call predecessors, (48), 47 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-09-12 21:46:47,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 377 transitions. [2024-09-12 21:46:47,403 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 377 transitions. Word has length 372 [2024-09-12 21:46:47,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:46:47,403 INFO L474 AbstractCegarLoop]: Abstraction has 376 states and 377 transitions. [2024-09-12 21:46:47,403 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 143 states, 143 states have (on average 1.6993006993006994) internal successors, (243), 143 states have internal predecessors, (243), 93 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2024-09-12 21:46:47,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:46:47,403 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 377 transitions. [2024-09-12 21:46:47,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-09-12 21:46:47,405 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:46:47,405 INFO L216 NwaCegarLoop]: trace histogram [46, 46, 46, 46, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:46:47,419 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Ended with exit code 0 [2024-09-12 21:46:47,605 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,91 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:46:47,606 INFO L399 AbstractCegarLoop]: === Iteration 93 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:46:47,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:46:47,606 INFO L85 PathProgramCache]: Analyzing trace with hash 402562296, now seen corresponding path program 90 times [2024-09-12 21:46:47,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:46:47,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648433618] [2024-09-12 21:46:47,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:46:47,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:46:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,340 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:46:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,341 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-09-12 21:46:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 21:46:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,343 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-09-12 21:46:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 21:46:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 21:46:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,345 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 21:46:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,346 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 21:46:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,347 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 21:46:49,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,347 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 21:46:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,348 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 21:46:49,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,349 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 21:46:49,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 21:46:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 21:46:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 21:46:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,352 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-09-12 21:46:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,353 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 21:46:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,354 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 21:46:49,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,355 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 21:46:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,355 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-09-12 21:46:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 21:46:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-09-12 21:46:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 21:46:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,359 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-09-12 21:46:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,360 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-09-12 21:46:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-09-12 21:46:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-09-12 21:46:49,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-09-12 21:46:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 21:46:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,366 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-09-12 21:46:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 21:46:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 21:46:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,370 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-09-12 21:46:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-09-12 21:46:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,372 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-09-12 21:46:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2024-09-12 21:46:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2024-09-12 21:46:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,376 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2024-09-12 21:46:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2024-09-12 21:46:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-09-12 21:46:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,379 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-09-12 21:46:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-09-12 21:46:49,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-09-12 21:46:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-09-12 21:46:49,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,384 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-09-12 21:46:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-09-12 21:46:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:49,387 INFO L134 CoverageAnalysis]: Checked inductivity of 8191 backedges. 1125 proven. 3106 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2024-09-12 21:46:49,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:46:49,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648433618] [2024-09-12 21:46:49,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648433618] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:46:49,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060334795] [2024-09-12 21:46:49,387 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:46:49,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:46:49,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:46:49,388 INFO L229 MonitoredProcess]: Starting monitored process 92 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:46:49,389 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2024-09-12 21:46:49,555 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 46 check-sat command(s) [2024-09-12 21:46:49,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:46:49,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 98 conjuncts are in the unsatisfiable core [2024-09-12 21:46:49,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:46:49,748 INFO L134 CoverageAnalysis]: Checked inductivity of 8191 backedges. 1171 proven. 3060 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2024-09-12 21:46:49,749 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:46:51,334 INFO L134 CoverageAnalysis]: Checked inductivity of 8191 backedges. 1171 proven. 3060 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2024-09-12 21:46:51,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060334795] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:46:51,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:46:51,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51, 51] total 54 [2024-09-12 21:46:51,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475472750] [2024-09-12 21:46:51,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:46:51,336 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-09-12 21:46:51,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:46:51,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-09-12 21:46:51,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1189, Invalid=1673, Unknown=0, NotChecked=0, Total=2862 [2024-09-12 21:46:51,336 INFO L87 Difference]: Start difference. First operand 376 states and 377 transitions. Second operand has 54 states, 54 states have (on average 2.7962962962962963) internal successors, (151), 52 states have internal predecessors, (151), 47 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-09-12 21:46:51,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:46:51,578 INFO L93 Difference]: Finished difference Result 389 states and 391 transitions. [2024-09-12 21:46:51,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-09-12 21:46:51,578 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 2.7962962962962963) internal successors, (151), 52 states have internal predecessors, (151), 47 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Word has length 373 [2024-09-12 21:46:51,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:46:51,581 INFO L225 Difference]: With dead ends: 389 [2024-09-12 21:46:51,581 INFO L226 Difference]: Without dead ends: 387 [2024-09-12 21:46:51,581 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 934 GetRequests, 789 SyntacticMatches, 92 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2662 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1195, Invalid=1775, Unknown=0, NotChecked=0, Total=2970 [2024-09-12 21:46:51,581 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:46:51,581 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 132 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:46:51,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-09-12 21:46:51,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 383. [2024-09-12 21:46:51,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 285 states have (on average 1.0070175438596491) internal successors, (287), 286 states have internal predecessors, (287), 49 states have call successors, (49), 49 states have call predecessors, (49), 48 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 21:46:51,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 384 transitions. [2024-09-12 21:46:51,609 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 384 transitions. Word has length 373 [2024-09-12 21:46:51,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:46:51,609 INFO L474 AbstractCegarLoop]: Abstraction has 383 states and 384 transitions. [2024-09-12 21:46:51,610 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 2.7962962962962963) internal successors, (151), 52 states have internal predecessors, (151), 47 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-09-12 21:46:51,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:46:51,610 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 384 transitions. [2024-09-12 21:46:51,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2024-09-12 21:46:51,611 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:46:51,612 INFO L216 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:46:51,625 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Forceful destruction successful, exit code 0 [2024-09-12 21:46:51,812 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,92 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:46:51,812 INFO L399 AbstractCegarLoop]: === Iteration 94 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:46:51,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:46:51,812 INFO L85 PathProgramCache]: Analyzing trace with hash -595539669, now seen corresponding path program 91 times [2024-09-12 21:46:51,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:46:51,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723895571] [2024-09-12 21:46:51,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:46:51,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:46:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:46:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-09-12 21:46:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,026 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 21:46:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-09-12 21:46:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 21:46:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 21:46:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 21:46:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 21:46:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 21:46:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 21:46:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 21:46:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 21:46:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 21:46:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 21:46:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 21:46:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-09-12 21:46:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 21:46:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 21:46:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 21:46:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-09-12 21:46:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 21:46:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,044 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-09-12 21:46:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 21:46:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,046 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-09-12 21:46:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-09-12 21:46:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-09-12 21:46:55,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,050 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-09-12 21:46:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-09-12 21:46:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 21:46:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-09-12 21:46:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 21:46:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,056 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 21:46:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,057 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-09-12 21:46:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-09-12 21:46:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-09-12 21:46:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2024-09-12 21:46:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,062 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2024-09-12 21:46:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2024-09-12 21:46:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,065 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2024-09-12 21:46:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,066 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-09-12 21:46:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,067 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-09-12 21:46:55,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,068 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-09-12 21:46:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,070 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-09-12 21:46:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,071 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-09-12 21:46:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-09-12 21:46:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,073 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-09-12 21:46:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,075 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-09-12 21:46:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,077 INFO L134 CoverageAnalysis]: Checked inductivity of 8510 backedges. 3153 proven. 1217 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-09-12 21:46:55,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:46:55,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723895571] [2024-09-12 21:46:55,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723895571] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:46:55,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039460011] [2024-09-12 21:46:55,077 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 21:46:55,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:46:55,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:46:55,079 INFO L229 MonitoredProcess]: Starting monitored process 93 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:46:55,080 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2024-09-12 21:46:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:46:55,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-09-12 21:46:55,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:46:58,240 INFO L134 CoverageAnalysis]: Checked inductivity of 8510 backedges. 3289 proven. 1081 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-09-12 21:46:58,240 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:47:00,657 INFO L134 CoverageAnalysis]: Checked inductivity of 8510 backedges. 3289 proven. 1081 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-09-12 21:47:00,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039460011] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:47:00,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:47:00,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97, 97] total 146 [2024-09-12 21:47:00,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440654383] [2024-09-12 21:47:00,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:47:00,658 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 146 states [2024-09-12 21:47:00,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:47:00,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2024-09-12 21:47:00,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4757, Invalid=16413, Unknown=0, NotChecked=0, Total=21170 [2024-09-12 21:47:00,661 INFO L87 Difference]: Start difference. First operand 383 states and 384 transitions. Second operand has 146 states, 146 states have (on average 1.6986301369863013) internal successors, (248), 146 states have internal predecessors, (248), 95 states have call successors, (96), 2 states have call predecessors, (96), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-09-12 21:47:01,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:47:01,322 INFO L93 Difference]: Finished difference Result 533 states and 581 transitions. [2024-09-12 21:47:01,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-09-12 21:47:01,322 INFO L78 Accepts]: Start accepts. Automaton has has 146 states, 146 states have (on average 1.6986301369863013) internal successors, (248), 146 states have internal predecessors, (248), 95 states have call successors, (96), 2 states have call predecessors, (96), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) Word has length 380 [2024-09-12 21:47:01,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:47:01,324 INFO L225 Difference]: With dead ends: 533 [2024-09-12 21:47:01,324 INFO L226 Difference]: Without dead ends: 384 [2024-09-12 21:47:01,325 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 950 GetRequests, 713 SyntacticMatches, 93 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13846 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=4757, Invalid=16413, Unknown=0, NotChecked=0, Total=21170 [2024-09-12 21:47:01,326 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 0 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 21:47:01,326 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 727 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 21:47:01,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-09-12 21:47:01,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2024-09-12 21:47:01,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 286 states have (on average 1.006993006993007) internal successors, (288), 287 states have internal predecessors, (288), 49 states have call successors, (49), 49 states have call predecessors, (49), 48 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 21:47:01,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 385 transitions. [2024-09-12 21:47:01,357 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 385 transitions. Word has length 380 [2024-09-12 21:47:01,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:47:01,357 INFO L474 AbstractCegarLoop]: Abstraction has 384 states and 385 transitions. [2024-09-12 21:47:01,357 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 146 states, 146 states have (on average 1.6986301369863013) internal successors, (248), 146 states have internal predecessors, (248), 95 states have call successors, (96), 2 states have call predecessors, (96), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-09-12 21:47:01,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:47:01,357 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 385 transitions. [2024-09-12 21:47:01,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2024-09-12 21:47:01,358 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:47:01,359 INFO L216 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:47:01,371 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Forceful destruction successful, exit code 0 [2024-09-12 21:47:01,559 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,93 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:47:01,559 INFO L399 AbstractCegarLoop]: === Iteration 95 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:47:01,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:47:01,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1522874935, now seen corresponding path program 92 times [2024-09-12 21:47:01,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:47:01,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683563298] [2024-09-12 21:47:01,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:47:01,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:47:01,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,404 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:47:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 21:47:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 21:47:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 21:47:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 21:47:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 21:47:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 21:47:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 21:47:03,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 21:47:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 21:47:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 21:47:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 21:47:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 21:47:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 21:47:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 21:47:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 21:47:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 21:47:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-09-12 21:47:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-09-12 21:47:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 21:47:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-09-12 21:47:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 21:47:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 21:47:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 21:47:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 21:47:03,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 21:47:03,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-09-12 21:47:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-09-12 21:47:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-09-12 21:47:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-09-12 21:47:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-09-12 21:47:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-09-12 21:47:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-09-12 21:47:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-09-12 21:47:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-09-12 21:47:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-09-12 21:47:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-09-12 21:47:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,434 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2024-09-12 21:47:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,436 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-09-12 21:47:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,437 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-09-12 21:47:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,438 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-09-12 21:47:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-09-12 21:47:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-09-12 21:47:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-09-12 21:47:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,443 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-09-12 21:47:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-09-12 21:47:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-09-12 21:47:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:03,447 INFO L134 CoverageAnalysis]: Checked inductivity of 8557 backedges. 1173 proven. 3244 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-09-12 21:47:03,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:47:03,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683563298] [2024-09-12 21:47:03,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683563298] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:47:03,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316231498] [2024-09-12 21:47:03,448 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:47:03,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:47:03,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:47:03,450 INFO L229 MonitoredProcess]: Starting monitored process 94 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:47:03,452 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2024-09-12 21:47:03,574 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:47:03,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:47:03,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 97 conjuncts are in the unsatisfiable core [2024-09-12 21:47:03,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:47:03,771 INFO L134 CoverageAnalysis]: Checked inductivity of 8557 backedges. 1220 proven. 3197 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-09-12 21:47:03,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:47:05,448 INFO L134 CoverageAnalysis]: Checked inductivity of 8557 backedges. 1220 proven. 3197 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-09-12 21:47:05,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316231498] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:47:05,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:47:05,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52, 52] total 55 [2024-09-12 21:47:05,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341848257] [2024-09-12 21:47:05,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:47:05,449 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-09-12 21:47:05,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:47:05,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-09-12 21:47:05,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1238, Invalid=1732, Unknown=0, NotChecked=0, Total=2970 [2024-09-12 21:47:05,450 INFO L87 Difference]: Start difference. First operand 384 states and 385 transitions. Second operand has 55 states, 55 states have (on average 2.8) internal successors, (154), 53 states have internal predecessors, (154), 48 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-09-12 21:47:05,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:47:05,713 INFO L93 Difference]: Finished difference Result 397 states and 399 transitions. [2024-09-12 21:47:05,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-09-12 21:47:05,714 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 2.8) internal successors, (154), 53 states have internal predecessors, (154), 48 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Word has length 381 [2024-09-12 21:47:05,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:47:05,716 INFO L225 Difference]: With dead ends: 397 [2024-09-12 21:47:05,716 INFO L226 Difference]: Without dead ends: 395 [2024-09-12 21:47:05,716 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 954 GetRequests, 804 SyntacticMatches, 96 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2863 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1244, Invalid=1836, Unknown=0, NotChecked=0, Total=3080 [2024-09-12 21:47:05,716 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:47:05,716 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 136 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:47:05,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-09-12 21:47:05,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 391. [2024-09-12 21:47:05,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 291 states have (on average 1.006872852233677) internal successors, (293), 292 states have internal predecessors, (293), 50 states have call successors, (50), 50 states have call predecessors, (50), 49 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2024-09-12 21:47:05,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 392 transitions. [2024-09-12 21:47:05,744 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 392 transitions. Word has length 381 [2024-09-12 21:47:05,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:47:05,744 INFO L474 AbstractCegarLoop]: Abstraction has 391 states and 392 transitions. [2024-09-12 21:47:05,745 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 2.8) internal successors, (154), 53 states have internal predecessors, (154), 48 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-09-12 21:47:05,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:47:05,745 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 392 transitions. [2024-09-12 21:47:05,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2024-09-12 21:47:05,746 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:47:05,746 INFO L216 NwaCegarLoop]: trace histogram [48, 48, 48, 47, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:47:05,758 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2024-09-12 21:47:05,946 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,94 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:47:05,946 INFO L399 AbstractCegarLoop]: === Iteration 96 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:47:05,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:47:05,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1209428212, now seen corresponding path program 93 times [2024-09-12 21:47:05,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:47:05,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010953165] [2024-09-12 21:47:05,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:47:05,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:47:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,283 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:47:09,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,284 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 21:47:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,285 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 21:47:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,286 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 21:47:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,287 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 21:47:09,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,288 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 21:47:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 21:47:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 21:47:09,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,290 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 21:47:09,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,291 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 21:47:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,292 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 21:47:09,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 21:47:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 21:47:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,294 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 21:47:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 21:47:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 21:47:09,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,297 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 21:47:09,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,298 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-09-12 21:47:09,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,298 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-09-12 21:47:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 21:47:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,300 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-09-12 21:47:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,301 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 21:47:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,302 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 21:47:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,303 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 21:47:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,304 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 21:47:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 21:47:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,307 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-09-12 21:47:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,308 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-09-12 21:47:09,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,309 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-09-12 21:47:09,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-09-12 21:47:09,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,312 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-09-12 21:47:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-09-12 21:47:09,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-09-12 21:47:09,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-09-12 21:47:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-09-12 21:47:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-09-12 21:47:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,320 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-09-12 21:47:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2024-09-12 21:47:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-09-12 21:47:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,324 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-09-12 21:47:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-09-12 21:47:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-09-12 21:47:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-09-12 21:47:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,329 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-09-12 21:47:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,330 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-09-12 21:47:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,331 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-09-12 21:47:09,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-09-12 21:47:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-09-12 21:47:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:09,336 INFO L134 CoverageAnalysis]: Checked inductivity of 8883 backedges. 3292 proven. 1267 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2024-09-12 21:47:09,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:47:09,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010953165] [2024-09-12 21:47:09,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010953165] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:47:09,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584454807] [2024-09-12 21:47:09,337 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:47:09,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:47:09,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:47:09,339 INFO L229 MonitoredProcess]: Starting monitored process 95 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:47:09,339 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2024-09-12 21:47:09,591 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 48 check-sat command(s) [2024-09-12 21:47:09,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:47:09,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 936 conjuncts, 98 conjuncts are in the unsatisfiable core [2024-09-12 21:47:09,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:47:12,687 INFO L134 CoverageAnalysis]: Checked inductivity of 8883 backedges. 3431 proven. 1128 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2024-09-12 21:47:12,688 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:47:15,207 INFO L134 CoverageAnalysis]: Checked inductivity of 8883 backedges. 3431 proven. 1128 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2024-09-12 21:47:15,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584454807] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:47:15,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:47:15,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [99, 99, 99] total 149 [2024-09-12 21:47:15,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264731196] [2024-09-12 21:47:15,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:47:15,208 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 149 states [2024-09-12 21:47:15,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:47:15,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2024-09-12 21:47:15,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4954, Invalid=17098, Unknown=0, NotChecked=0, Total=22052 [2024-09-12 21:47:15,210 INFO L87 Difference]: Start difference. First operand 391 states and 392 transitions. Second operand has 149 states, 149 states have (on average 1.6979865771812082) internal successors, (253), 149 states have internal predecessors, (253), 97 states have call successors, (98), 2 states have call predecessors, (98), 1 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-09-12 21:47:15,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:47:15,919 INFO L93 Difference]: Finished difference Result 544 states and 593 transitions. [2024-09-12 21:47:15,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2024-09-12 21:47:15,920 INFO L78 Accepts]: Start accepts. Automaton has has 149 states, 149 states have (on average 1.6979865771812082) internal successors, (253), 149 states have internal predecessors, (253), 97 states have call successors, (98), 2 states have call predecessors, (98), 1 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) Word has length 388 [2024-09-12 21:47:15,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:47:15,935 INFO L225 Difference]: With dead ends: 544 [2024-09-12 21:47:15,935 INFO L226 Difference]: Without dead ends: 392 [2024-09-12 21:47:15,936 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 970 GetRequests, 728 SyntacticMatches, 95 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14429 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=4954, Invalid=17098, Unknown=0, NotChecked=0, Total=22052 [2024-09-12 21:47:15,936 INFO L434 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 21:47:15,936 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 905 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 21:47:15,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-09-12 21:47:15,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2024-09-12 21:47:15,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 292 states have (on average 1.0068493150684932) internal successors, (294), 293 states have internal predecessors, (294), 50 states have call successors, (50), 50 states have call predecessors, (50), 49 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2024-09-12 21:47:15,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 393 transitions. [2024-09-12 21:47:15,965 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 393 transitions. Word has length 388 [2024-09-12 21:47:15,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:47:15,965 INFO L474 AbstractCegarLoop]: Abstraction has 392 states and 393 transitions. [2024-09-12 21:47:15,966 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 149 states, 149 states have (on average 1.6979865771812082) internal successors, (253), 149 states have internal predecessors, (253), 97 states have call successors, (98), 2 states have call predecessors, (98), 1 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-09-12 21:47:15,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:47:15,966 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 393 transitions. [2024-09-12 21:47:15,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-09-12 21:47:15,967 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:47:15,967 INFO L216 NwaCegarLoop]: trace histogram [48, 48, 48, 48, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:47:15,980 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2024-09-12 21:47:16,167 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,95 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:47:16,168 INFO L399 AbstractCegarLoop]: === Iteration 97 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:47:16,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:47:16,168 INFO L85 PathProgramCache]: Analyzing trace with hash -631096296, now seen corresponding path program 94 times [2024-09-12 21:47:16,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:47:16,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419234037] [2024-09-12 21:47:16,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:47:16,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:47:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,217 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:47:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,219 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 21:47:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,219 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 21:47:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,220 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 21:47:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 21:47:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 21:47:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 21:47:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 21:47:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,224 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 21:47:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 21:47:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 21:47:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 21:47:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,227 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 21:47:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 21:47:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-09-12 21:47:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,230 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 21:47:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,230 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 21:47:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,231 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 21:47:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,232 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 21:47:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,233 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 21:47:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,233 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-09-12 21:47:18,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,234 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 21:47:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,235 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 21:47:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,236 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-09-12 21:47:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,237 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-09-12 21:47:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,239 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-09-12 21:47:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,240 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-09-12 21:47:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,241 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-09-12 21:47:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-09-12 21:47:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,244 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 21:47:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,245 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-09-12 21:47:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-09-12 21:47:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,247 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-09-12 21:47:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,249 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-09-12 21:47:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,250 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-09-12 21:47:18,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,251 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-09-12 21:47:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-09-12 21:47:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,253 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-09-12 21:47:18,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2024-09-12 21:47:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,256 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-09-12 21:47:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,257 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-09-12 21:47:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,258 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-09-12 21:47:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,259 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-09-12 21:47:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,261 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-09-12 21:47:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,262 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-09-12 21:47:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,263 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-09-12 21:47:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,264 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2024-09-12 21:47:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,266 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-09-12 21:47:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:18,268 INFO L134 CoverageAnalysis]: Checked inductivity of 8931 backedges. 1222 proven. 3385 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2024-09-12 21:47:18,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:47:18,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419234037] [2024-09-12 21:47:18,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419234037] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:47:18,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849837102] [2024-09-12 21:47:18,268 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:47:18,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:47:18,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:47:18,272 INFO L229 MonitoredProcess]: Starting monitored process 96 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:47:18,273 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2024-09-12 21:47:18,408 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:47:18,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:47:18,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 102 conjuncts are in the unsatisfiable core [2024-09-12 21:47:18,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:47:18,610 INFO L134 CoverageAnalysis]: Checked inductivity of 8931 backedges. 1270 proven. 3337 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2024-09-12 21:47:18,610 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:47:20,331 INFO L134 CoverageAnalysis]: Checked inductivity of 8931 backedges. 1270 proven. 3337 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2024-09-12 21:47:20,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849837102] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:47:20,331 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:47:20,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 56 [2024-09-12 21:47:20,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848848328] [2024-09-12 21:47:20,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:47:20,332 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-09-12 21:47:20,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:47:20,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-09-12 21:47:20,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1288, Invalid=1792, Unknown=0, NotChecked=0, Total=3080 [2024-09-12 21:47:20,333 INFO L87 Difference]: Start difference. First operand 392 states and 393 transitions. Second operand has 56 states, 56 states have (on average 2.8035714285714284) internal successors, (157), 54 states have internal predecessors, (157), 49 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 21:47:20,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:47:20,602 INFO L93 Difference]: Finished difference Result 405 states and 407 transitions. [2024-09-12 21:47:20,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-09-12 21:47:20,602 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 2.8035714285714284) internal successors, (157), 54 states have internal predecessors, (157), 49 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Word has length 389 [2024-09-12 21:47:20,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:47:20,605 INFO L225 Difference]: With dead ends: 405 [2024-09-12 21:47:20,605 INFO L226 Difference]: Without dead ends: 403 [2024-09-12 21:47:20,605 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 974 GetRequests, 823 SyntacticMatches, 96 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2874 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1294, Invalid=1898, Unknown=0, NotChecked=0, Total=3192 [2024-09-12 21:47:20,605 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:47:20,605 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 130 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:47:20,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-09-12 21:47:20,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 399. [2024-09-12 21:47:20,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 297 states have (on average 1.0067340067340067) internal successors, (299), 298 states have internal predecessors, (299), 51 states have call successors, (51), 51 states have call predecessors, (51), 50 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2024-09-12 21:47:20,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 400 transitions. [2024-09-12 21:47:20,634 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 400 transitions. Word has length 389 [2024-09-12 21:47:20,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:47:20,634 INFO L474 AbstractCegarLoop]: Abstraction has 399 states and 400 transitions. [2024-09-12 21:47:20,634 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 2.8035714285714284) internal successors, (157), 54 states have internal predecessors, (157), 49 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 21:47:20,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:47:20,635 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 400 transitions. [2024-09-12 21:47:20,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2024-09-12 21:47:20,636 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:47:20,636 INFO L216 NwaCegarLoop]: trace histogram [49, 49, 49, 48, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:47:20,648 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2024-09-12 21:47:20,836 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,96 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:47:20,836 INFO L399 AbstractCegarLoop]: === Iteration 98 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:47:20,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:47:20,837 INFO L85 PathProgramCache]: Analyzing trace with hash 197256715, now seen corresponding path program 95 times [2024-09-12 21:47:20,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:47:20,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557263027] [2024-09-12 21:47:20,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:47:20,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:47:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:47:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,366 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 21:47:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 21:47:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 21:47:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 21:47:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,369 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 21:47:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,370 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 21:47:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,370 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 21:47:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 21:47:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,372 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 21:47:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 21:47:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 21:47:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,375 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 21:47:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,376 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 21:47:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-09-12 21:47:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 21:47:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,379 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 21:47:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 21:47:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 21:47:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 21:47:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,384 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-09-12 21:47:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 21:47:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 21:47:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-09-12 21:47:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-09-12 21:47:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-09-12 21:47:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-09-12 21:47:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-09-12 21:47:24,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-09-12 21:47:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 21:47:24,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-09-12 21:47:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-09-12 21:47:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,399 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-09-12 21:47:24,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-09-12 21:47:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-09-12 21:47:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-09-12 21:47:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-09-12 21:47:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,403 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-09-12 21:47:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,404 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2024-09-12 21:47:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-09-12 21:47:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-09-12 21:47:24,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-09-12 21:47:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-09-12 21:47:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-09-12 21:47:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-09-12 21:47:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-09-12 21:47:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2024-09-12 21:47:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-09-12 21:47:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2024-09-12 21:47:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:24,414 INFO L134 CoverageAnalysis]: Checked inductivity of 9264 backedges. 3434 proven. 1318 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-09-12 21:47:24,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:47:24,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557263027] [2024-09-12 21:47:24,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557263027] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:47:24,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737435781] [2024-09-12 21:47:24,415 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:47:24,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:47:24,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:47:24,416 INFO L229 MonitoredProcess]: Starting monitored process 97 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:47:24,416 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2024-09-12 21:47:24,589 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 49 check-sat command(s) [2024-09-12 21:47:24,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:47:24,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 100 conjuncts are in the unsatisfiable core [2024-09-12 21:47:24,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:47:27,780 INFO L134 CoverageAnalysis]: Checked inductivity of 9264 backedges. 3576 proven. 1176 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-09-12 21:47:27,780 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:47:30,378 INFO L134 CoverageAnalysis]: Checked inductivity of 9264 backedges. 3576 proven. 1176 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-09-12 21:47:30,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737435781] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:47:30,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:47:30,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 101, 101] total 152 [2024-09-12 21:47:30,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382553867] [2024-09-12 21:47:30,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:47:30,380 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 152 states [2024-09-12 21:47:30,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:47:30,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 152 interpolants. [2024-09-12 21:47:30,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5155, Invalid=17797, Unknown=0, NotChecked=0, Total=22952 [2024-09-12 21:47:30,384 INFO L87 Difference]: Start difference. First operand 399 states and 400 transitions. Second operand has 152 states, 152 states have (on average 1.6973684210526316) internal successors, (258), 152 states have internal predecessors, (258), 99 states have call successors, (100), 2 states have call predecessors, (100), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2024-09-12 21:47:31,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:47:31,185 INFO L93 Difference]: Finished difference Result 555 states and 605 transitions. [2024-09-12 21:47:31,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2024-09-12 21:47:31,185 INFO L78 Accepts]: Start accepts. Automaton has has 152 states, 152 states have (on average 1.6973684210526316) internal successors, (258), 152 states have internal predecessors, (258), 99 states have call successors, (100), 2 states have call predecessors, (100), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) Word has length 396 [2024-09-12 21:47:31,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:47:31,188 INFO L225 Difference]: With dead ends: 555 [2024-09-12 21:47:31,188 INFO L226 Difference]: Without dead ends: 400 [2024-09-12 21:47:31,189 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 990 GetRequests, 743 SyntacticMatches, 97 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15024 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=5155, Invalid=17797, Unknown=0, NotChecked=0, Total=22952 [2024-09-12 21:47:31,189 INFO L434 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 1655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 21:47:31,189 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 922 Invalid, 1655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1655 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 21:47:31,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-09-12 21:47:31,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2024-09-12 21:47:31,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 298 states have (on average 1.0067114093959733) internal successors, (300), 299 states have internal predecessors, (300), 51 states have call successors, (51), 51 states have call predecessors, (51), 50 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2024-09-12 21:47:31,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 401 transitions. [2024-09-12 21:47:31,219 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 401 transitions. Word has length 396 [2024-09-12 21:47:31,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:47:31,219 INFO L474 AbstractCegarLoop]: Abstraction has 400 states and 401 transitions. [2024-09-12 21:47:31,219 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 152 states, 152 states have (on average 1.6973684210526316) internal successors, (258), 152 states have internal predecessors, (258), 99 states have call successors, (100), 2 states have call predecessors, (100), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2024-09-12 21:47:31,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:47:31,220 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 401 transitions. [2024-09-12 21:47:31,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2024-09-12 21:47:31,221 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:47:31,221 INFO L216 NwaCegarLoop]: trace histogram [49, 49, 49, 49, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:47:31,233 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2024-09-12 21:47:31,421 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable97 [2024-09-12 21:47:31,421 INFO L399 AbstractCegarLoop]: === Iteration 99 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:47:31,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:47:31,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1157283607, now seen corresponding path program 96 times [2024-09-12 21:47:31,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:47:31,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127970505] [2024-09-12 21:47:31,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:47:31,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:47:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:47:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,375 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 21:47:33,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,376 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 21:47:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 21:47:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 21:47:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 21:47:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,379 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 21:47:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 21:47:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 21:47:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 21:47:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 21:47:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 21:47:33,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,384 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 21:47:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,384 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 21:47:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,386 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-09-12 21:47:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 21:47:33,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 21:47:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 21:47:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-09-12 21:47:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 21:47:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-09-12 21:47:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-09-12 21:47:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 21:47:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 21:47:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 21:47:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,399 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-09-12 21:47:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-09-12 21:47:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-09-12 21:47:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-09-12 21:47:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,403 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 21:47:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-09-12 21:47:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-09-12 21:47:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-09-12 21:47:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 21:47:33,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2024-09-12 21:47:33,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-09-12 21:47:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2024-09-12 21:47:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-09-12 21:47:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2024-09-12 21:47:33,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2024-09-12 21:47:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-09-12 21:47:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-09-12 21:47:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-09-12 21:47:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-09-12 21:47:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-09-12 21:47:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2024-09-12 21:47:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2024-09-12 21:47:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2024-09-12 21:47:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2024-09-12 21:47:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:33,427 INFO L134 CoverageAnalysis]: Checked inductivity of 9313 backedges. 1272 proven. 3529 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-09-12 21:47:33,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:47:33,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127970505] [2024-09-12 21:47:33,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127970505] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:47:33,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743011212] [2024-09-12 21:47:33,428 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:47:33,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:47:33,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:47:33,429 INFO L229 MonitoredProcess]: Starting monitored process 98 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:47:33,430 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2024-09-12 21:47:33,609 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 49 check-sat command(s) [2024-09-12 21:47:33,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:47:33,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 104 conjuncts are in the unsatisfiable core [2024-09-12 21:47:33,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:47:33,813 INFO L134 CoverageAnalysis]: Checked inductivity of 9313 backedges. 1321 proven. 3480 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-09-12 21:47:33,814 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:47:35,598 INFO L134 CoverageAnalysis]: Checked inductivity of 9313 backedges. 1321 proven. 3480 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-09-12 21:47:35,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743011212] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:47:35,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:47:35,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 57 [2024-09-12 21:47:35,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989189063] [2024-09-12 21:47:35,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:47:35,599 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-09-12 21:47:35,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:47:35,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-09-12 21:47:35,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1339, Invalid=1853, Unknown=0, NotChecked=0, Total=3192 [2024-09-12 21:47:35,600 INFO L87 Difference]: Start difference. First operand 400 states and 401 transitions. Second operand has 57 states, 57 states have (on average 2.807017543859649) internal successors, (160), 55 states have internal predecessors, (160), 50 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-09-12 21:47:35,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:47:35,891 INFO L93 Difference]: Finished difference Result 413 states and 415 transitions. [2024-09-12 21:47:35,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-09-12 21:47:35,891 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 2.807017543859649) internal successors, (160), 55 states have internal predecessors, (160), 50 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Word has length 397 [2024-09-12 21:47:35,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:47:35,894 INFO L225 Difference]: With dead ends: 413 [2024-09-12 21:47:35,894 INFO L226 Difference]: Without dead ends: 411 [2024-09-12 21:47:35,894 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 994 GetRequests, 840 SyntacticMatches, 98 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2983 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1345, Invalid=1961, Unknown=0, NotChecked=0, Total=3306 [2024-09-12 21:47:35,894 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:47:35,895 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 117 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:47:35,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-09-12 21:47:35,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 407. [2024-09-12 21:47:35,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 303 states have (on average 1.0066006600660067) internal successors, (305), 304 states have internal predecessors, (305), 52 states have call successors, (52), 52 states have call predecessors, (52), 51 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2024-09-12 21:47:35,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 408 transitions. [2024-09-12 21:47:35,940 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 408 transitions. Word has length 397 [2024-09-12 21:47:35,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:47:35,940 INFO L474 AbstractCegarLoop]: Abstraction has 407 states and 408 transitions. [2024-09-12 21:47:35,941 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 2.807017543859649) internal successors, (160), 55 states have internal predecessors, (160), 50 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-09-12 21:47:35,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:47:35,941 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 408 transitions. [2024-09-12 21:47:35,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-09-12 21:47:35,943 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:47:35,943 INFO L216 NwaCegarLoop]: trace histogram [50, 50, 50, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:47:35,961 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Forceful destruction successful, exit code 0 [2024-09-12 21:47:36,143 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2024-09-12 21:47:36,144 INFO L399 AbstractCegarLoop]: === Iteration 100 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:47:36,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:47:36,144 INFO L85 PathProgramCache]: Analyzing trace with hash -666970580, now seen corresponding path program 97 times [2024-09-12 21:47:36,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:47:36,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276198465] [2024-09-12 21:47:36,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:47:36,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:47:36,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:47:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,778 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 21:47:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 21:47:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 21:47:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 21:47:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 21:47:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 21:47:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,784 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 21:47:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 21:47:39,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 21:47:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 21:47:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 21:47:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,788 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 21:47:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 21:47:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-09-12 21:47:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 21:47:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 21:47:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 21:47:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,794 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-09-12 21:47:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 21:47:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-09-12 21:47:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-09-12 21:47:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 21:47:39,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 21:47:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 21:47:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-09-12 21:47:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-09-12 21:47:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-09-12 21:47:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-09-12 21:47:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 21:47:39,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-09-12 21:47:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-09-12 21:47:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-09-12 21:47:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 21:47:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2024-09-12 21:47:39,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-09-12 21:47:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2024-09-12 21:47:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-09-12 21:47:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2024-09-12 21:47:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2024-09-12 21:47:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-09-12 21:47:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-09-12 21:47:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-09-12 21:47:39,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-09-12 21:47:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-09-12 21:47:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2024-09-12 21:47:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2024-09-12 21:47:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2024-09-12 21:47:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2024-09-12 21:47:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2024-09-12 21:47:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,822 INFO L134 CoverageAnalysis]: Checked inductivity of 9653 backedges. 3579 proven. 1370 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2024-09-12 21:47:39,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:47:39,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276198465] [2024-09-12 21:47:39,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276198465] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:47:39,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722504756] [2024-09-12 21:47:39,822 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 21:47:39,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:47:39,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:47:39,823 INFO L229 MonitoredProcess]: Starting monitored process 99 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:47:39,824 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2024-09-12 21:47:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:39,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 102 conjuncts are in the unsatisfiable core [2024-09-12 21:47:39,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:47:43,254 INFO L134 CoverageAnalysis]: Checked inductivity of 9653 backedges. 3724 proven. 1225 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2024-09-12 21:47:43,255 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:47:45,956 INFO L134 CoverageAnalysis]: Checked inductivity of 9653 backedges. 3724 proven. 1225 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2024-09-12 21:47:45,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722504756] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:47:45,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:47:45,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [103, 103, 103] total 155 [2024-09-12 21:47:45,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620540956] [2024-09-12 21:47:45,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:47:45,957 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 155 states [2024-09-12 21:47:45,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:47:45,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants. [2024-09-12 21:47:45,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5360, Invalid=18510, Unknown=0, NotChecked=0, Total=23870 [2024-09-12 21:47:45,959 INFO L87 Difference]: Start difference. First operand 407 states and 408 transitions. Second operand has 155 states, 155 states have (on average 1.696774193548387) internal successors, (263), 155 states have internal predecessors, (263), 101 states have call successors, (102), 2 states have call predecessors, (102), 1 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2024-09-12 21:47:46,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:47:46,872 INFO L93 Difference]: Finished difference Result 566 states and 617 transitions. [2024-09-12 21:47:46,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2024-09-12 21:47:46,873 INFO L78 Accepts]: Start accepts. Automaton has has 155 states, 155 states have (on average 1.696774193548387) internal successors, (263), 155 states have internal predecessors, (263), 101 states have call successors, (102), 2 states have call predecessors, (102), 1 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) Word has length 404 [2024-09-12 21:47:46,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:47:46,875 INFO L225 Difference]: With dead ends: 566 [2024-09-12 21:47:46,875 INFO L226 Difference]: Without dead ends: 408 [2024-09-12 21:47:46,877 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1010 GetRequests, 758 SyntacticMatches, 99 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15631 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=5360, Invalid=18510, Unknown=0, NotChecked=0, Total=23870 [2024-09-12 21:47:46,877 INFO L434 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 1942 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 21:47:46,877 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1211 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1942 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 21:47:46,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-09-12 21:47:46,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 408. [2024-09-12 21:47:46,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 304 states have (on average 1.006578947368421) internal successors, (306), 305 states have internal predecessors, (306), 52 states have call successors, (52), 52 states have call predecessors, (52), 51 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2024-09-12 21:47:46,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 409 transitions. [2024-09-12 21:47:46,910 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 409 transitions. Word has length 404 [2024-09-12 21:47:46,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:47:46,910 INFO L474 AbstractCegarLoop]: Abstraction has 408 states and 409 transitions. [2024-09-12 21:47:46,910 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 155 states, 155 states have (on average 1.696774193548387) internal successors, (263), 155 states have internal predecessors, (263), 101 states have call successors, (102), 2 states have call predecessors, (102), 1 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2024-09-12 21:47:46,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:47:46,911 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 409 transitions. [2024-09-12 21:47:46,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-09-12 21:47:46,912 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:47:46,912 INFO L216 NwaCegarLoop]: trace histogram [50, 50, 50, 50, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:47:46,924 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Forceful destruction successful, exit code 0 [2024-09-12 21:47:47,112 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2024-09-12 21:47:47,112 INFO L399 AbstractCegarLoop]: === Iteration 101 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:47:47,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:47:47,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1321460536, now seen corresponding path program 98 times [2024-09-12 21:47:47,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:47:47,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084508225] [2024-09-12 21:47:47,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:47:47,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:47:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:47:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 21:47:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 21:47:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 21:47:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,167 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 21:47:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 21:47:49,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 21:47:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,169 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 21:47:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 21:47:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,171 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 21:47:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 21:47:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 21:47:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-09-12 21:47:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,174 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 21:47:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,175 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 21:47:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,175 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-09-12 21:47:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,176 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 21:47:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 21:47:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-09-12 21:47:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-12 21:47:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,179 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-09-12 21:47:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,180 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-09-12 21:47:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,181 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 21:47:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,182 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-09-12 21:47:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,182 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 21:47:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,183 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-09-12 21:47:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 21:47:49,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,186 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 21:47:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,187 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-09-12 21:47:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-09-12 21:47:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,189 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-09-12 21:47:49,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,190 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2024-09-12 21:47:49,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-09-12 21:47:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,192 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-12 21:47:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,192 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-09-12 21:47:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-09-12 21:47:49,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-09-12 21:47:49,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,195 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-09-12 21:47:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-09-12 21:47:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2024-09-12 21:47:49,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,197 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-09-12 21:47:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2024-09-12 21:47:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-09-12 21:47:49,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-09-12 21:47:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,201 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-09-12 21:47:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,201 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-09-12 21:47:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,202 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-09-12 21:47:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,203 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-09-12 21:47:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,204 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2024-09-12 21:47:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,205 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2024-09-12 21:47:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:49,206 INFO L134 CoverageAnalysis]: Checked inductivity of 9703 backedges. 1323 proven. 3676 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2024-09-12 21:47:49,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:47:49,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084508225] [2024-09-12 21:47:49,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084508225] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:47:49,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130851076] [2024-09-12 21:47:49,206 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:47:49,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:47:49,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:47:49,208 INFO L229 MonitoredProcess]: Starting monitored process 100 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:47:49,208 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2024-09-12 21:47:49,336 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:47:49,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:47:49,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 979 conjuncts, 103 conjuncts are in the unsatisfiable core [2024-09-12 21:47:49,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:47:49,542 INFO L134 CoverageAnalysis]: Checked inductivity of 9703 backedges. 1373 proven. 3626 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2024-09-12 21:47:49,542 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:47:51,503 INFO L134 CoverageAnalysis]: Checked inductivity of 9703 backedges. 1373 proven. 3626 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2024-09-12 21:47:51,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130851076] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:47:51,503 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:47:51,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55, 55] total 58 [2024-09-12 21:47:51,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752949728] [2024-09-12 21:47:51,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:47:51,504 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-09-12 21:47:51,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:47:51,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-09-12 21:47:51,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1391, Invalid=1915, Unknown=0, NotChecked=0, Total=3306 [2024-09-12 21:47:51,505 INFO L87 Difference]: Start difference. First operand 408 states and 409 transitions. Second operand has 58 states, 58 states have (on average 2.810344827586207) internal successors, (163), 56 states have internal predecessors, (163), 51 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-09-12 21:47:51,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:47:51,808 INFO L93 Difference]: Finished difference Result 421 states and 423 transitions. [2024-09-12 21:47:51,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-09-12 21:47:51,809 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 2.810344827586207) internal successors, (163), 56 states have internal predecessors, (163), 51 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Word has length 405 [2024-09-12 21:47:51,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:47:51,811 INFO L225 Difference]: With dead ends: 421 [2024-09-12 21:47:51,812 INFO L226 Difference]: Without dead ends: 419 [2024-09-12 21:47:51,812 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1014 GetRequests, 855 SyntacticMatches, 102 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3196 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1397, Invalid=2025, Unknown=0, NotChecked=0, Total=3422 [2024-09-12 21:47:51,812 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:47:51,812 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 136 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:47:51,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-09-12 21:47:51,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 415. [2024-09-12 21:47:51,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 309 states have (on average 1.006472491909385) internal successors, (311), 310 states have internal predecessors, (311), 53 states have call successors, (53), 53 states have call predecessors, (53), 52 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2024-09-12 21:47:51,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 416 transitions. [2024-09-12 21:47:51,845 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 416 transitions. Word has length 405 [2024-09-12 21:47:51,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:47:51,845 INFO L474 AbstractCegarLoop]: Abstraction has 415 states and 416 transitions. [2024-09-12 21:47:51,845 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 2.810344827586207) internal successors, (163), 56 states have internal predecessors, (163), 51 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-09-12 21:47:51,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:47:51,845 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 416 transitions. [2024-09-12 21:47:51,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-09-12 21:47:51,847 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:47:51,847 INFO L216 NwaCegarLoop]: trace histogram [51, 51, 51, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:47:51,864 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Forceful destruction successful, exit code 0 [2024-09-12 21:47:52,047 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2024-09-12 21:47:52,047 INFO L399 AbstractCegarLoop]: === Iteration 102 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:47:52,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:47:52,048 INFO L85 PathProgramCache]: Analyzing trace with hash -122946837, now seen corresponding path program 99 times [2024-09-12 21:47:52,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:47:52,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508239400] [2024-09-12 21:47:52,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:47:52,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:47:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:47:55,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 21:47:55,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 21:47:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 21:47:55,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 21:47:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 21:47:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 21:47:55,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 21:47:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 21:47:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 21:47:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 21:47:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 21:47:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-09-12 21:47:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 21:47:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 21:47:55,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-09-12 21:47:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 21:47:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 21:47:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-09-12 21:47:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-12 21:47:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-09-12 21:47:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-09-12 21:47:55,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 21:47:55,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,823 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-09-12 21:47:55,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 21:47:55,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-09-12 21:47:55,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 21:47:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 21:47:55,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,827 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-09-12 21:47:55,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-09-12 21:47:55,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-09-12 21:47:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2024-09-12 21:47:55,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-09-12 21:47:55,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-12 21:47:55,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,832 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-09-12 21:47:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-09-12 21:47:55,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-09-12 21:47:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-09-12 21:47:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-09-12 21:47:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2024-09-12 21:47:55,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,837 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-09-12 21:47:55,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,839 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2024-09-12 21:47:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-09-12 21:47:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,841 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-09-12 21:47:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,843 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-09-12 21:47:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-09-12 21:47:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,845 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-09-12 21:47:55,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-09-12 21:47:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2024-09-12 21:47:55,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,849 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2024-09-12 21:47:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2024-09-12 21:47:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:47:55,852 INFO L134 CoverageAnalysis]: Checked inductivity of 10050 backedges. 3727 proven. 1423 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-09-12 21:47:55,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:47:55,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508239400] [2024-09-12 21:47:55,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508239400] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:47:55,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701963391] [2024-09-12 21:47:55,853 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:47:55,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:47:55,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:47:55,855 INFO L229 MonitoredProcess]: Starting monitored process 101 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:47:55,856 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2024-09-12 21:47:56,057 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 51 check-sat command(s) [2024-09-12 21:47:56,057 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:47:56,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 104 conjuncts are in the unsatisfiable core [2024-09-12 21:47:56,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:47:59,484 INFO L134 CoverageAnalysis]: Checked inductivity of 10050 backedges. 3875 proven. 1275 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-09-12 21:47:59,484 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:48:02,292 INFO L134 CoverageAnalysis]: Checked inductivity of 10050 backedges. 3875 proven. 1275 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-09-12 21:48:02,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701963391] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:48:02,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:48:02,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [105, 105, 105] total 158 [2024-09-12 21:48:02,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428354276] [2024-09-12 21:48:02,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:48:02,293 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 158 states [2024-09-12 21:48:02,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:48:02,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 158 interpolants. [2024-09-12 21:48:02,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5569, Invalid=19237, Unknown=0, NotChecked=0, Total=24806 [2024-09-12 21:48:02,295 INFO L87 Difference]: Start difference. First operand 415 states and 416 transitions. Second operand has 158 states, 158 states have (on average 1.6962025316455696) internal successors, (268), 158 states have internal predecessors, (268), 103 states have call successors, (104), 2 states have call predecessors, (104), 1 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2024-09-12 21:48:03,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:48:03,204 INFO L93 Difference]: Finished difference Result 577 states and 629 transitions. [2024-09-12 21:48:03,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2024-09-12 21:48:03,205 INFO L78 Accepts]: Start accepts. Automaton has has 158 states, 158 states have (on average 1.6962025316455696) internal successors, (268), 158 states have internal predecessors, (268), 103 states have call successors, (104), 2 states have call predecessors, (104), 1 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) Word has length 412 [2024-09-12 21:48:03,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:48:03,208 INFO L225 Difference]: With dead ends: 577 [2024-09-12 21:48:03,209 INFO L226 Difference]: Without dead ends: 416 [2024-09-12 21:48:03,210 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1030 GetRequests, 773 SyntacticMatches, 101 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16250 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=5569, Invalid=19237, Unknown=0, NotChecked=0, Total=24806 [2024-09-12 21:48:03,210 INFO L434 NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 1885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 21:48:03,211 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1450 Invalid, 1885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1885 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 21:48:03,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-09-12 21:48:03,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2024-09-12 21:48:03,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 310 states have (on average 1.0064516129032257) internal successors, (312), 311 states have internal predecessors, (312), 53 states have call successors, (53), 53 states have call predecessors, (53), 52 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2024-09-12 21:48:03,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 417 transitions. [2024-09-12 21:48:03,259 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 417 transitions. Word has length 412 [2024-09-12 21:48:03,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:48:03,259 INFO L474 AbstractCegarLoop]: Abstraction has 416 states and 417 transitions. [2024-09-12 21:48:03,260 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 158 states, 158 states have (on average 1.6962025316455696) internal successors, (268), 158 states have internal predecessors, (268), 103 states have call successors, (104), 2 states have call predecessors, (104), 1 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2024-09-12 21:48:03,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:48:03,260 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 417 transitions. [2024-09-12 21:48:03,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2024-09-12 21:48:03,262 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:48:03,262 INFO L216 NwaCegarLoop]: trace histogram [51, 51, 51, 51, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:48:03,279 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Forceful destruction successful, exit code 0 [2024-09-12 21:48:03,462 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2024-09-12 21:48:03,463 INFO L399 AbstractCegarLoop]: === Iteration 103 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:48:03,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:48:03,463 INFO L85 PathProgramCache]: Analyzing trace with hash -2029437961, now seen corresponding path program 100 times [2024-09-12 21:48:03,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:48:03,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749739248] [2024-09-12 21:48:03,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:48:03,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:48:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:48:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 21:48:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 21:48:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 21:48:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 21:48:05,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 21:48:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-09-12 21:48:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 21:48:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 21:48:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 21:48:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 21:48:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 21:48:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-09-12 21:48:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 21:48:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-09-12 21:48:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 21:48:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-09-12 21:48:05,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 21:48:05,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-09-12 21:48:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 21:48:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-09-12 21:48:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-09-12 21:48:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-09-12 21:48:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-09-12 21:48:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-09-12 21:48:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-09-12 21:48:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-09-12 21:48:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,608 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-12 21:48:05,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-09-12 21:48:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-09-12 21:48:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,610 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-09-12 21:48:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 21:48:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,612 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2024-09-12 21:48:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-09-12 21:48:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2024-09-12 21:48:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,614 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2024-09-12 21:48:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2024-09-12 21:48:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2024-09-12 21:48:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2024-09-12 21:48:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-09-12 21:48:05,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-09-12 21:48:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-09-12 21:48:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-09-12 21:48:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-09-12 21:48:05,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-09-12 21:48:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2024-09-12 21:48:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2024-09-12 21:48:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2024-09-12 21:48:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2024-09-12 21:48:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2024-09-12 21:48:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2024-09-12 21:48:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:05,628 INFO L134 CoverageAnalysis]: Checked inductivity of 10101 backedges. 1375 proven. 3826 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-09-12 21:48:05,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:48:05,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749739248] [2024-09-12 21:48:05,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749739248] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:48:05,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418660100] [2024-09-12 21:48:05,628 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:48:05,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:48:05,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:48:05,630 INFO L229 MonitoredProcess]: Starting monitored process 102 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:48:05,630 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2024-09-12 21:48:05,765 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:48:05,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:48:05,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 108 conjuncts are in the unsatisfiable core [2024-09-12 21:48:05,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:48:05,980 INFO L134 CoverageAnalysis]: Checked inductivity of 10101 backedges. 1426 proven. 3775 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-09-12 21:48:05,980 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:48:07,897 INFO L134 CoverageAnalysis]: Checked inductivity of 10101 backedges. 1426 proven. 3775 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-09-12 21:48:07,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418660100] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:48:07,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:48:07,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56, 56] total 59 [2024-09-12 21:48:07,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854643552] [2024-09-12 21:48:07,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:48:07,898 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2024-09-12 21:48:07,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:48:07,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2024-09-12 21:48:07,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1444, Invalid=1978, Unknown=0, NotChecked=0, Total=3422 [2024-09-12 21:48:07,899 INFO L87 Difference]: Start difference. First operand 416 states and 417 transitions. Second operand has 59 states, 59 states have (on average 2.8135593220338984) internal successors, (166), 57 states have internal predecessors, (166), 52 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-09-12 21:48:08,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:48:08,206 INFO L93 Difference]: Finished difference Result 429 states and 431 transitions. [2024-09-12 21:48:08,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-09-12 21:48:08,206 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 2.8135593220338984) internal successors, (166), 57 states have internal predecessors, (166), 52 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) Word has length 413 [2024-09-12 21:48:08,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:48:08,209 INFO L225 Difference]: With dead ends: 429 [2024-09-12 21:48:08,209 INFO L226 Difference]: Without dead ends: 427 [2024-09-12 21:48:08,209 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1034 GetRequests, 874 SyntacticMatches, 102 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3207 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1450, Invalid=2090, Unknown=0, NotChecked=0, Total=3540 [2024-09-12 21:48:08,209 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:48:08,209 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 116 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:48:08,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-09-12 21:48:08,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 423. [2024-09-12 21:48:08,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 315 states have (on average 1.0063492063492063) internal successors, (317), 316 states have internal predecessors, (317), 54 states have call successors, (54), 54 states have call predecessors, (54), 53 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-09-12 21:48:08,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 424 transitions. [2024-09-12 21:48:08,247 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 424 transitions. Word has length 413 [2024-09-12 21:48:08,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:48:08,247 INFO L474 AbstractCegarLoop]: Abstraction has 423 states and 424 transitions. [2024-09-12 21:48:08,247 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 2.8135593220338984) internal successors, (166), 57 states have internal predecessors, (166), 52 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-09-12 21:48:08,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:48:08,247 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 424 transitions. [2024-09-12 21:48:08,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2024-09-12 21:48:08,249 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:48:08,249 INFO L216 NwaCegarLoop]: trace histogram [52, 52, 52, 51, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:48:08,263 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Forceful destruction successful, exit code 0 [2024-09-12 21:48:08,450 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2024-09-12 21:48:08,450 INFO L399 AbstractCegarLoop]: === Iteration 104 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:48:08,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:48:08,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1053549236, now seen corresponding path program 101 times [2024-09-12 21:48:08,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:48:08,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889510614] [2024-09-12 21:48:08,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:48:08,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:48:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,372 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:48:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 21:48:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 21:48:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 21:48:12,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,375 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 21:48:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,376 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 21:48:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-09-12 21:48:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 21:48:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 21:48:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,379 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 21:48:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 21:48:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 21:48:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-09-12 21:48:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 21:48:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-09-12 21:48:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,384 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 21:48:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-09-12 21:48:12,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,386 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 21:48:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,386 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-09-12 21:48:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 21:48:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-09-12 21:48:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-09-12 21:48:12,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-09-12 21:48:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-09-12 21:48:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-09-12 21:48:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-09-12 21:48:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-09-12 21:48:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-12 21:48:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-09-12 21:48:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-09-12 21:48:12,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-09-12 21:48:12,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 21:48:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2024-09-12 21:48:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,399 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-09-12 21:48:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,399 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2024-09-12 21:48:12,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2024-09-12 21:48:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2024-09-12 21:48:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2024-09-12 21:48:12,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,403 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2024-09-12 21:48:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,404 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-09-12 21:48:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,404 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-09-12 21:48:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-09-12 21:48:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-09-12 21:48:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-09-12 21:48:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-09-12 21:48:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2024-09-12 21:48:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2024-09-12 21:48:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2024-09-12 21:48:12,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2024-09-12 21:48:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2024-09-12 21:48:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2024-09-12 21:48:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2024-09-12 21:48:12,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:12,415 INFO L134 CoverageAnalysis]: Checked inductivity of 10455 backedges. 3878 proven. 1477 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-09-12 21:48:12,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:48:12,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889510614] [2024-09-12 21:48:12,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889510614] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:48:12,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061145117] [2024-09-12 21:48:12,416 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:48:12,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:48:12,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:48:12,417 INFO L229 MonitoredProcess]: Starting monitored process 103 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:48:12,418 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2024-09-12 21:48:12,606 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 52 check-sat command(s) [2024-09-12 21:48:12,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:48:12,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 106 conjuncts are in the unsatisfiable core [2024-09-12 21:48:12,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:48:16,191 INFO L134 CoverageAnalysis]: Checked inductivity of 10455 backedges. 4029 proven. 1326 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-09-12 21:48:16,191 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:48:19,099 INFO L134 CoverageAnalysis]: Checked inductivity of 10455 backedges. 4029 proven. 1326 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-09-12 21:48:19,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061145117] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:48:19,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:48:19,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [107, 107, 107] total 161 [2024-09-12 21:48:19,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053719912] [2024-09-12 21:48:19,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:48:19,100 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 161 states [2024-09-12 21:48:19,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:48:19,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 161 interpolants. [2024-09-12 21:48:19,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5782, Invalid=19978, Unknown=0, NotChecked=0, Total=25760 [2024-09-12 21:48:19,103 INFO L87 Difference]: Start difference. First operand 423 states and 424 transitions. Second operand has 161 states, 161 states have (on average 1.6956521739130435) internal successors, (273), 161 states have internal predecessors, (273), 105 states have call successors, (106), 2 states have call predecessors, (106), 1 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-09-12 21:48:20,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:48:20,041 INFO L93 Difference]: Finished difference Result 588 states and 641 transitions. [2024-09-12 21:48:20,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2024-09-12 21:48:20,041 INFO L78 Accepts]: Start accepts. Automaton has has 161 states, 161 states have (on average 1.6956521739130435) internal successors, (273), 161 states have internal predecessors, (273), 105 states have call successors, (106), 2 states have call predecessors, (106), 1 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) Word has length 420 [2024-09-12 21:48:20,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:48:20,044 INFO L225 Difference]: With dead ends: 588 [2024-09-12 21:48:20,044 INFO L226 Difference]: Without dead ends: 424 [2024-09-12 21:48:20,045 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1050 GetRequests, 788 SyntacticMatches, 103 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16881 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=5782, Invalid=19978, Unknown=0, NotChecked=0, Total=25760 [2024-09-12 21:48:20,045 INFO L434 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 1943 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 1943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 21:48:20,045 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1543 Invalid, 1943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1943 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 21:48:20,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2024-09-12 21:48:20,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 424. [2024-09-12 21:48:20,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 316 states have (on average 1.0063291139240507) internal successors, (318), 317 states have internal predecessors, (318), 54 states have call successors, (54), 54 states have call predecessors, (54), 53 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-09-12 21:48:20,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 425 transitions. [2024-09-12 21:48:20,084 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 425 transitions. Word has length 420 [2024-09-12 21:48:20,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:48:20,084 INFO L474 AbstractCegarLoop]: Abstraction has 424 states and 425 transitions. [2024-09-12 21:48:20,084 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 161 states, 161 states have (on average 1.6956521739130435) internal successors, (273), 161 states have internal predecessors, (273), 105 states have call successors, (106), 2 states have call predecessors, (106), 1 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-09-12 21:48:20,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:48:20,084 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 425 transitions. [2024-09-12 21:48:20,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2024-09-12 21:48:20,085 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:48:20,085 INFO L216 NwaCegarLoop]: trace histogram [52, 52, 52, 52, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:48:20,098 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Forceful destruction successful, exit code 0 [2024-09-12 21:48:20,286 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2024-09-12 21:48:20,286 INFO L399 AbstractCegarLoop]: === Iteration 105 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:48:20,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:48:20,286 INFO L85 PathProgramCache]: Analyzing trace with hash -168455592, now seen corresponding path program 102 times [2024-09-12 21:48:20,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:48:20,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375680429] [2024-09-12 21:48:20,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:48:20,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:48:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:48:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-09-12 21:48:22,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-09-12 21:48:22,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 21:48:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 21:48:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 21:48:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 21:48:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 21:48:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 21:48:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-09-12 21:48:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 21:48:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 21:48:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 21:48:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 21:48:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,517 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-09-12 21:48:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 21:48:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,519 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-09-12 21:48:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,519 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-09-12 21:48:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 21:48:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 21:48:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,522 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 21:48:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,522 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-09-12 21:48:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-09-12 21:48:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 21:48:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-09-12 21:48:22,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 21:48:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,526 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-09-12 21:48:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,527 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 21:48:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,528 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-09-12 21:48:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,529 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-09-12 21:48:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,529 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 21:48:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-09-12 21:48:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,531 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2024-09-12 21:48:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,532 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-09-12 21:48:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-09-12 21:48:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-09-12 21:48:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2024-09-12 21:48:22,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,535 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2024-09-12 21:48:22,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,546 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-09-12 21:48:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-09-12 21:48:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-09-12 21:48:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-09-12 21:48:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-09-12 21:48:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-09-12 21:48:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-09-12 21:48:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-09-12 21:48:22,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-09-12 21:48:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2024-09-12 21:48:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,554 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2024-09-12 21:48:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,555 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2024-09-12 21:48:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2024-09-12 21:48:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2024-09-12 21:48:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:22,558 INFO L134 CoverageAnalysis]: Checked inductivity of 10507 backedges. 1428 proven. 3979 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-09-12 21:48:22,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:48:22,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375680429] [2024-09-12 21:48:22,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375680429] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:48:22,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680212177] [2024-09-12 21:48:22,558 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:48:22,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:48:22,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:48:22,559 INFO L229 MonitoredProcess]: Starting monitored process 104 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:48:22,560 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2024-09-12 21:48:22,752 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 52 check-sat command(s) [2024-09-12 21:48:22,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:48:22,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 1017 conjuncts, 110 conjuncts are in the unsatisfiable core [2024-09-12 21:48:22,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:48:22,966 INFO L134 CoverageAnalysis]: Checked inductivity of 10507 backedges. 1480 proven. 3927 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-09-12 21:48:22,967 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:48:24,940 INFO L134 CoverageAnalysis]: Checked inductivity of 10507 backedges. 1480 proven. 3927 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-09-12 21:48:24,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680212177] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:48:24,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:48:24,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57, 57] total 60 [2024-09-12 21:48:24,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584902012] [2024-09-12 21:48:24,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:48:24,941 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-09-12 21:48:24,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:48:24,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-09-12 21:48:24,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1498, Invalid=2042, Unknown=0, NotChecked=0, Total=3540 [2024-09-12 21:48:24,942 INFO L87 Difference]: Start difference. First operand 424 states and 425 transitions. Second operand has 60 states, 60 states have (on average 2.816666666666667) internal successors, (169), 58 states have internal predecessors, (169), 53 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-09-12 21:48:25,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:48:25,255 INFO L93 Difference]: Finished difference Result 437 states and 439 transitions. [2024-09-12 21:48:25,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-09-12 21:48:25,256 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 2.816666666666667) internal successors, (169), 58 states have internal predecessors, (169), 53 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Word has length 421 [2024-09-12 21:48:25,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:48:25,258 INFO L225 Difference]: With dead ends: 437 [2024-09-12 21:48:25,258 INFO L226 Difference]: Without dead ends: 435 [2024-09-12 21:48:25,259 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1054 GetRequests, 891 SyntacticMatches, 104 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3322 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1504, Invalid=2156, Unknown=0, NotChecked=0, Total=3660 [2024-09-12 21:48:25,259 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:48:25,259 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 152 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:48:25,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-09-12 21:48:25,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 431. [2024-09-12 21:48:25,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 321 states have (on average 1.0062305295950156) internal successors, (323), 322 states have internal predecessors, (323), 55 states have call successors, (55), 55 states have call predecessors, (55), 54 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2024-09-12 21:48:25,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 432 transitions. [2024-09-12 21:48:25,307 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 432 transitions. Word has length 421 [2024-09-12 21:48:25,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:48:25,307 INFO L474 AbstractCegarLoop]: Abstraction has 431 states and 432 transitions. [2024-09-12 21:48:25,307 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 2.816666666666667) internal successors, (169), 58 states have internal predecessors, (169), 53 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-09-12 21:48:25,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:48:25,307 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 432 transitions. [2024-09-12 21:48:25,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-09-12 21:48:25,309 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:48:25,309 INFO L216 NwaCegarLoop]: trace histogram [53, 53, 53, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:48:25,322 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Forceful destruction successful, exit code 0 [2024-09-12 21:48:25,509 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,104 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:48:25,509 INFO L399 AbstractCegarLoop]: === Iteration 106 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:48:25,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:48:25,510 INFO L85 PathProgramCache]: Analyzing trace with hash -231929909, now seen corresponding path program 103 times [2024-09-12 21:48:25,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:48:25,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437467411] [2024-09-12 21:48:25,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:48:25,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:48:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:48:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,578 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-09-12 21:48:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-09-12 21:48:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 21:48:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 21:48:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 21:48:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,582 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 21:48:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,583 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 21:48:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 21:48:29,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-09-12 21:48:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 21:48:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,586 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 21:48:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 21:48:29,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 21:48:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-09-12 21:48:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 21:48:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-09-12 21:48:29,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-09-12 21:48:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 21:48:29,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 21:48:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 21:48:29,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-09-12 21:48:29,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-09-12 21:48:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 21:48:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-09-12 21:48:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 21:48:29,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-09-12 21:48:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 21:48:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-09-12 21:48:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-09-12 21:48:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 21:48:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-09-12 21:48:29,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2024-09-12 21:48:29,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-09-12 21:48:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-09-12 21:48:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-09-12 21:48:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2024-09-12 21:48:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2024-09-12 21:48:29,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,608 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-09-12 21:48:29,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-09-12 21:48:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,610 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-09-12 21:48:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-09-12 21:48:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,612 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-09-12 21:48:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,612 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-09-12 21:48:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-09-12 21:48:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,614 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-09-12 21:48:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-09-12 21:48:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2024-09-12 21:48:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2024-09-12 21:48:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2024-09-12 21:48:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2024-09-12 21:48:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2024-09-12 21:48:29,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2024-09-12 21:48:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,622 INFO L134 CoverageAnalysis]: Checked inductivity of 10868 backedges. 4032 proven. 1532 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2024-09-12 21:48:29,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:48:29,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437467411] [2024-09-12 21:48:29,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437467411] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:48:29,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838404473] [2024-09-12 21:48:29,623 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 21:48:29,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:48:29,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:48:29,624 INFO L229 MonitoredProcess]: Starting monitored process 105 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:48:29,625 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Waiting until timeout for monitored process [2024-09-12 21:48:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:29,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 108 conjuncts are in the unsatisfiable core [2024-09-12 21:48:29,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:48:33,446 INFO L134 CoverageAnalysis]: Checked inductivity of 10868 backedges. 4186 proven. 1378 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2024-09-12 21:48:33,447 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:48:36,462 INFO L134 CoverageAnalysis]: Checked inductivity of 10868 backedges. 4186 proven. 1378 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2024-09-12 21:48:36,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838404473] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:48:36,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:48:36,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [109, 109, 109] total 164 [2024-09-12 21:48:36,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12450711] [2024-09-12 21:48:36,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:48:36,464 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 164 states [2024-09-12 21:48:36,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:48:36,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 164 interpolants. [2024-09-12 21:48:36,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5999, Invalid=20733, Unknown=0, NotChecked=0, Total=26732 [2024-09-12 21:48:36,466 INFO L87 Difference]: Start difference. First operand 431 states and 432 transitions. Second operand has 164 states, 164 states have (on average 1.6951219512195121) internal successors, (278), 164 states have internal predecessors, (278), 107 states have call successors, (108), 2 states have call predecessors, (108), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2024-09-12 21:48:37,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:48:37,272 INFO L93 Difference]: Finished difference Result 599 states and 653 transitions. [2024-09-12 21:48:37,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2024-09-12 21:48:37,273 INFO L78 Accepts]: Start accepts. Automaton has has 164 states, 164 states have (on average 1.6951219512195121) internal successors, (278), 164 states have internal predecessors, (278), 107 states have call successors, (108), 2 states have call predecessors, (108), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) Word has length 428 [2024-09-12 21:48:37,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:48:37,275 INFO L225 Difference]: With dead ends: 599 [2024-09-12 21:48:37,275 INFO L226 Difference]: Without dead ends: 432 [2024-09-12 21:48:37,277 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1070 GetRequests, 803 SyntacticMatches, 105 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17524 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=5999, Invalid=20733, Unknown=0, NotChecked=0, Total=26732 [2024-09-12 21:48:37,277 INFO L434 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 21:48:37,277 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1043 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 21:48:37,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-09-12 21:48:37,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2024-09-12 21:48:37,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 322 states have (on average 1.0062111801242235) internal successors, (324), 323 states have internal predecessors, (324), 55 states have call successors, (55), 55 states have call predecessors, (55), 54 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2024-09-12 21:48:37,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 433 transitions. [2024-09-12 21:48:37,323 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 433 transitions. Word has length 428 [2024-09-12 21:48:37,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:48:37,323 INFO L474 AbstractCegarLoop]: Abstraction has 432 states and 433 transitions. [2024-09-12 21:48:37,323 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 164 states, 164 states have (on average 1.6951219512195121) internal successors, (278), 164 states have internal predecessors, (278), 107 states have call successors, (108), 2 states have call predecessors, (108), 1 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2024-09-12 21:48:37,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:48:37,324 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 433 transitions. [2024-09-12 21:48:37,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-09-12 21:48:37,325 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:48:37,325 INFO L216 NwaCegarLoop]: trace histogram [53, 53, 53, 53, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:48:37,337 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Ended with exit code 0 [2024-09-12 21:48:37,525 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105,105 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:48:37,525 INFO L399 AbstractCegarLoop]: === Iteration 107 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:48:37,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:48:37,525 INFO L85 PathProgramCache]: Analyzing trace with hash 266252503, now seen corresponding path program 104 times [2024-09-12 21:48:37,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:48:37,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819584021] [2024-09-12 21:48:37,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:48:37,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:48:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:48:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 21:48:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-09-12 21:48:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 21:48:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 21:48:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 21:48:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 21:48:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 21:48:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,823 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 21:48:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 21:48:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 21:48:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 21:48:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,827 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 21:48:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 21:48:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-09-12 21:48:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 21:48:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 21:48:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 21:48:39,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,832 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-09-12 21:48:39,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 21:48:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-09-12 21:48:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 21:48:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-09-12 21:48:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-09-12 21:48:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,837 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-09-12 21:48:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,837 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-09-12 21:48:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-09-12 21:48:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,839 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 21:48:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-09-12 21:48:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,841 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 21:48:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,841 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 21:48:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-09-12 21:48:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,843 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-09-12 21:48:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-09-12 21:48:39,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2024-09-12 21:48:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,845 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2024-09-12 21:48:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2024-09-12 21:48:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2024-09-12 21:48:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-09-12 21:48:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-09-12 21:48:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,849 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-09-12 21:48:39,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-09-12 21:48:39,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-09-12 21:48:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-09-12 21:48:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-09-12 21:48:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-09-12 21:48:39,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-09-12 21:48:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2024-09-12 21:48:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2024-09-12 21:48:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2024-09-12 21:48:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,858 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2024-09-12 21:48:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2024-09-12 21:48:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2024-09-12 21:48:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:39,861 INFO L134 CoverageAnalysis]: Checked inductivity of 10921 backedges. 1482 proven. 4135 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2024-09-12 21:48:39,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:48:39,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819584021] [2024-09-12 21:48:39,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819584021] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:48:39,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701866326] [2024-09-12 21:48:39,862 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:48:39,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:48:39,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:48:39,863 INFO L229 MonitoredProcess]: Starting monitored process 106 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:48:39,864 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Waiting until timeout for monitored process [2024-09-12 21:48:39,999 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:48:39,999 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:48:40,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 109 conjuncts are in the unsatisfiable core [2024-09-12 21:48:40,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:48:40,235 INFO L134 CoverageAnalysis]: Checked inductivity of 10921 backedges. 1535 proven. 4082 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2024-09-12 21:48:40,235 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:48:42,312 INFO L134 CoverageAnalysis]: Checked inductivity of 10921 backedges. 1535 proven. 4082 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2024-09-12 21:48:42,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701866326] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:48:42,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:48:42,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58, 58] total 61 [2024-09-12 21:48:42,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200678208] [2024-09-12 21:48:42,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:48:42,313 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-09-12 21:48:42,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:48:42,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-09-12 21:48:42,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1553, Invalid=2107, Unknown=0, NotChecked=0, Total=3660 [2024-09-12 21:48:42,314 INFO L87 Difference]: Start difference. First operand 432 states and 433 transitions. Second operand has 61 states, 61 states have (on average 2.819672131147541) internal successors, (172), 59 states have internal predecessors, (172), 54 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-09-12 21:48:42,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:48:42,632 INFO L93 Difference]: Finished difference Result 445 states and 447 transitions. [2024-09-12 21:48:42,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-09-12 21:48:42,632 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 2.819672131147541) internal successors, (172), 59 states have internal predecessors, (172), 54 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Word has length 429 [2024-09-12 21:48:42,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:48:42,634 INFO L225 Difference]: With dead ends: 445 [2024-09-12 21:48:42,634 INFO L226 Difference]: Without dead ends: 443 [2024-09-12 21:48:42,635 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1074 GetRequests, 906 SyntacticMatches, 108 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3547 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1559, Invalid=2223, Unknown=0, NotChecked=0, Total=3782 [2024-09-12 21:48:42,635 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:48:42,635 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 146 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:48:42,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-09-12 21:48:42,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 439. [2024-09-12 21:48:42,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 327 states have (on average 1.0061162079510704) internal successors, (329), 328 states have internal predecessors, (329), 56 states have call successors, (56), 56 states have call predecessors, (56), 55 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2024-09-12 21:48:42,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 440 transitions. [2024-09-12 21:48:42,668 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 440 transitions. Word has length 429 [2024-09-12 21:48:42,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:48:42,669 INFO L474 AbstractCegarLoop]: Abstraction has 439 states and 440 transitions. [2024-09-12 21:48:42,669 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 2.819672131147541) internal successors, (172), 59 states have internal predecessors, (172), 54 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-09-12 21:48:42,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:48:42,669 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 440 transitions. [2024-09-12 21:48:42,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2024-09-12 21:48:42,670 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:48:42,670 INFO L216 NwaCegarLoop]: trace histogram [54, 54, 54, 53, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:48:42,682 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Ended with exit code 0 [2024-09-12 21:48:42,870 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2024-09-12 21:48:42,871 INFO L399 AbstractCegarLoop]: === Iteration 108 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:48:42,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:48:42,871 INFO L85 PathProgramCache]: Analyzing trace with hash 2082172012, now seen corresponding path program 105 times [2024-09-12 21:48:42,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:48:42,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072247356] [2024-09-12 21:48:42,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:48:42,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:48:42,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,113 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:48:47,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,114 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 21:48:47,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-09-12 21:48:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 21:48:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,117 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 21:48:47,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,117 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 21:48:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,118 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 21:48:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,119 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 21:48:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,120 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 21:48:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,121 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 21:48:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,121 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 21:48:47,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,122 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 21:48:47,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,123 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 21:48:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,124 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 21:48:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-09-12 21:48:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 21:48:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,126 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 21:48:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,127 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 21:48:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,128 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-09-12 21:48:47,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,129 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 21:48:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,129 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-09-12 21:48:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,130 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 21:48:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,131 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-09-12 21:48:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,132 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-09-12 21:48:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-09-12 21:48:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-09-12 21:48:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-09-12 21:48:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 21:48:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,136 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-09-12 21:48:47,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,137 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 21:48:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 21:48:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-09-12 21:48:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-09-12 21:48:47,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-09-12 21:48:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,141 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2024-09-12 21:48:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2024-09-12 21:48:47,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2024-09-12 21:48:47,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,144 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2024-09-12 21:48:47,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,144 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-09-12 21:48:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,145 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-09-12 21:48:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,146 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-09-12 21:48:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-09-12 21:48:47,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-09-12 21:48:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-09-12 21:48:47,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-09-12 21:48:47,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-09-12 21:48:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-09-12 21:48:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2024-09-12 21:48:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,153 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2024-09-12 21:48:47,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2024-09-12 21:48:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2024-09-12 21:48:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2024-09-12 21:48:47,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2024-09-12 21:48:47,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2024-09-12 21:48:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:47,159 INFO L134 CoverageAnalysis]: Checked inductivity of 11289 backedges. 4189 proven. 1588 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2024-09-12 21:48:47,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:48:47,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072247356] [2024-09-12 21:48:47,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072247356] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:48:47,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002498506] [2024-09-12 21:48:47,160 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:48:47,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:48:47,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:48:47,161 INFO L229 MonitoredProcess]: Starting monitored process 107 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:48:47,162 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2024-09-12 21:48:47,365 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 54 check-sat command(s) [2024-09-12 21:48:47,366 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:48:47,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 1050 conjuncts, 110 conjuncts are in the unsatisfiable core [2024-09-12 21:48:47,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:48:51,189 INFO L134 CoverageAnalysis]: Checked inductivity of 11289 backedges. 4346 proven. 1431 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2024-09-12 21:48:51,189 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:48:54,318 INFO L134 CoverageAnalysis]: Checked inductivity of 11289 backedges. 4346 proven. 1431 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2024-09-12 21:48:54,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002498506] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:48:54,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:48:54,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [111, 111, 111] total 167 [2024-09-12 21:48:54,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707267603] [2024-09-12 21:48:54,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:48:54,319 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 167 states [2024-09-12 21:48:54,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:48:54,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 167 interpolants. [2024-09-12 21:48:54,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6220, Invalid=21502, Unknown=0, NotChecked=0, Total=27722 [2024-09-12 21:48:54,321 INFO L87 Difference]: Start difference. First operand 439 states and 440 transitions. Second operand has 167 states, 167 states have (on average 1.6946107784431137) internal successors, (283), 167 states have internal predecessors, (283), 109 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-09-12 21:48:55,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:48:55,219 INFO L93 Difference]: Finished difference Result 610 states and 665 transitions. [2024-09-12 21:48:55,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2024-09-12 21:48:55,220 INFO L78 Accepts]: Start accepts. Automaton has has 167 states, 167 states have (on average 1.6946107784431137) internal successors, (283), 167 states have internal predecessors, (283), 109 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) Word has length 436 [2024-09-12 21:48:55,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:48:55,222 INFO L225 Difference]: With dead ends: 610 [2024-09-12 21:48:55,222 INFO L226 Difference]: Without dead ends: 440 [2024-09-12 21:48:55,223 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1090 GetRequests, 818 SyntacticMatches, 107 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18179 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=6220, Invalid=21502, Unknown=0, NotChecked=0, Total=27722 [2024-09-12 21:48:55,224 INFO L434 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 1801 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 1801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 21:48:55,224 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1305 Invalid, 1801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1801 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 21:48:55,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-09-12 21:48:55,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2024-09-12 21:48:55,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 328 states have (on average 1.0060975609756098) internal successors, (330), 329 states have internal predecessors, (330), 56 states have call successors, (56), 56 states have call predecessors, (56), 55 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2024-09-12 21:48:55,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 441 transitions. [2024-09-12 21:48:55,258 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 441 transitions. Word has length 436 [2024-09-12 21:48:55,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:48:55,258 INFO L474 AbstractCegarLoop]: Abstraction has 440 states and 441 transitions. [2024-09-12 21:48:55,258 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 167 states, 167 states have (on average 1.6946107784431137) internal successors, (283), 167 states have internal predecessors, (283), 109 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-09-12 21:48:55,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:48:55,259 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 441 transitions. [2024-09-12 21:48:55,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2024-09-12 21:48:55,260 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:48:55,260 INFO L216 NwaCegarLoop]: trace histogram [54, 54, 54, 54, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:48:55,272 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Forceful destruction successful, exit code 0 [2024-09-12 21:48:55,460 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 107 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2024-09-12 21:48:55,460 INFO L399 AbstractCegarLoop]: === Iteration 109 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:48:55,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:48:55,461 INFO L85 PathProgramCache]: Analyzing trace with hash 2034846072, now seen corresponding path program 106 times [2024-09-12 21:48:55,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:48:55,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487202154] [2024-09-12 21:48:55,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:48:55,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:48:55,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:48:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 21:48:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 21:48:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 21:48:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 21:48:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 21:48:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,868 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 21:48:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,868 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 21:48:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 21:48:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 21:48:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,871 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 21:48:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,871 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 21:48:57,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 21:48:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,874 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 21:48:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,875 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 21:48:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,876 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 21:48:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,876 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-09-12 21:48:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-09-12 21:48:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 21:48:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-09-12 21:48:57,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 21:48:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 21:48:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 21:48:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 21:48:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 21:48:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,883 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-09-12 21:48:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-09-12 21:48:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-09-12 21:48:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,886 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-09-12 21:48:57,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,886 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-09-12 21:48:57,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,887 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-09-12 21:48:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,888 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-09-12 21:48:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,889 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-09-12 21:48:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-09-12 21:48:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-09-12 21:48:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-09-12 21:48:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,892 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2024-09-12 21:48:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-09-12 21:48:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-09-12 21:48:57,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-09-12 21:48:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-09-12 21:48:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-09-12 21:48:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-09-12 21:48:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-09-12 21:48:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-09-12 21:48:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-09-12 21:48:57,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-09-12 21:48:57,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2024-09-12 21:48:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2024-09-12 21:48:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2024-09-12 21:48:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2024-09-12 21:48:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2024-09-12 21:48:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2024-09-12 21:48:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2024-09-12 21:48:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:48:57,907 INFO L134 CoverageAnalysis]: Checked inductivity of 11343 backedges. 1537 proven. 4294 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2024-09-12 21:48:57,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:48:57,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487202154] [2024-09-12 21:48:57,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487202154] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:48:57,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716639600] [2024-09-12 21:48:57,907 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:48:57,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:48:57,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:48:57,909 INFO L229 MonitoredProcess]: Starting monitored process 108 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:48:57,909 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Waiting until timeout for monitored process [2024-09-12 21:48:58,052 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:48:58,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:48:58,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 1055 conjuncts, 114 conjuncts are in the unsatisfiable core [2024-09-12 21:48:58,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:48:58,275 INFO L134 CoverageAnalysis]: Checked inductivity of 11343 backedges. 1591 proven. 4240 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2024-09-12 21:48:58,275 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:49:00,374 INFO L134 CoverageAnalysis]: Checked inductivity of 11343 backedges. 1591 proven. 4240 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2024-09-12 21:49:00,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716639600] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:49:00,374 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:49:00,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 59, 59] total 62 [2024-09-12 21:49:00,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211281709] [2024-09-12 21:49:00,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:49:00,375 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-09-12 21:49:00,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:49:00,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-09-12 21:49:00,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1609, Invalid=2173, Unknown=0, NotChecked=0, Total=3782 [2024-09-12 21:49:00,376 INFO L87 Difference]: Start difference. First operand 440 states and 441 transitions. Second operand has 62 states, 62 states have (on average 2.8225806451612905) internal successors, (175), 60 states have internal predecessors, (175), 55 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-09-12 21:49:00,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:49:00,696 INFO L93 Difference]: Finished difference Result 453 states and 455 transitions. [2024-09-12 21:49:00,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-09-12 21:49:00,697 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 2.8225806451612905) internal successors, (175), 60 states have internal predecessors, (175), 55 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Word has length 437 [2024-09-12 21:49:00,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:49:00,699 INFO L225 Difference]: With dead ends: 453 [2024-09-12 21:49:00,699 INFO L226 Difference]: Without dead ends: 451 [2024-09-12 21:49:00,699 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1094 GetRequests, 925 SyntacticMatches, 108 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3558 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1615, Invalid=2291, Unknown=0, NotChecked=0, Total=3906 [2024-09-12 21:49:00,700 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:49:00,700 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 165 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:49:00,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-09-12 21:49:00,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 447. [2024-09-12 21:49:00,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 333 states have (on average 1.006006006006006) internal successors, (335), 334 states have internal predecessors, (335), 57 states have call successors, (57), 57 states have call predecessors, (57), 56 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-09-12 21:49:00,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 448 transitions. [2024-09-12 21:49:00,734 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 448 transitions. Word has length 437 [2024-09-12 21:49:00,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:49:00,734 INFO L474 AbstractCegarLoop]: Abstraction has 447 states and 448 transitions. [2024-09-12 21:49:00,735 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 2.8225806451612905) internal successors, (175), 60 states have internal predecessors, (175), 55 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-09-12 21:49:00,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:49:00,735 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 448 transitions. [2024-09-12 21:49:00,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2024-09-12 21:49:00,736 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:49:00,736 INFO L216 NwaCegarLoop]: trace histogram [55, 55, 55, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:49:00,749 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Forceful destruction successful, exit code 0 [2024-09-12 21:49:00,936 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,108 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:49:00,936 INFO L399 AbstractCegarLoop]: === Iteration 110 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:49:00,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:49:00,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1900868437, now seen corresponding path program 107 times [2024-09-12 21:49:00,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:49:00,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612824490] [2024-09-12 21:49:00,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:49:00,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:49:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:49:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,352 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 21:49:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,353 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 21:49:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,354 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 21:49:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,355 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 21:49:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,355 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 21:49:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 21:49:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 21:49:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 21:49:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,359 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 21:49:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,359 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 21:49:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,360 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 21:49:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 21:49:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 21:49:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,363 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 21:49:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,363 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 21:49:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-09-12 21:49:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-09-12 21:49:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,366 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 21:49:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-09-12 21:49:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 21:49:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 21:49:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,369 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 21:49:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,370 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 21:49:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 21:49:05,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,372 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-09-12 21:49:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,372 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-09-12 21:49:05,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-09-12 21:49:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-09-12 21:49:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,375 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-09-12 21:49:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,376 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-09-12 21:49:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-09-12 21:49:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-09-12 21:49:05,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-09-12 21:49:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,379 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-09-12 21:49:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-09-12 21:49:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2024-09-12 21:49:05,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-09-12 21:49:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-09-12 21:49:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-09-12 21:49:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,384 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-09-12 21:49:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-09-12 21:49:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,386 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-09-12 21:49:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-09-12 21:49:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-09-12 21:49:05,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-09-12 21:49:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-09-12 21:49:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2024-09-12 21:49:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2024-09-12 21:49:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2024-09-12 21:49:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2024-09-12 21:49:05,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2024-09-12 21:49:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2024-09-12 21:49:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2024-09-12 21:49:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2024-09-12 21:49:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:05,398 INFO L134 CoverageAnalysis]: Checked inductivity of 11718 backedges. 4349 proven. 1645 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-09-12 21:49:05,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:49:05,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612824490] [2024-09-12 21:49:05,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612824490] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:49:05,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993445547] [2024-09-12 21:49:05,398 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:49:05,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:49:05,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:49:05,399 INFO L229 MonitoredProcess]: Starting monitored process 109 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:49:05,400 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Waiting until timeout for monitored process [2024-09-12 21:49:05,593 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 55 check-sat command(s) [2024-09-12 21:49:05,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:49:05,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 112 conjuncts are in the unsatisfiable core [2024-09-12 21:49:05,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:49:09,546 INFO L134 CoverageAnalysis]: Checked inductivity of 11718 backedges. 4509 proven. 1485 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-09-12 21:49:09,547 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:49:12,780 INFO L134 CoverageAnalysis]: Checked inductivity of 11718 backedges. 4509 proven. 1485 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-09-12 21:49:12,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993445547] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:49:12,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:49:12,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [113, 113, 113] total 170 [2024-09-12 21:49:12,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757586247] [2024-09-12 21:49:12,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:49:12,781 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 170 states [2024-09-12 21:49:12,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:49:12,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 170 interpolants. [2024-09-12 21:49:12,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6445, Invalid=22285, Unknown=0, NotChecked=0, Total=28730 [2024-09-12 21:49:12,783 INFO L87 Difference]: Start difference. First operand 447 states and 448 transitions. Second operand has 170 states, 170 states have (on average 1.6941176470588235) internal successors, (288), 170 states have internal predecessors, (288), 111 states have call successors, (112), 2 states have call predecessors, (112), 1 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-09-12 21:49:13,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:49:13,866 INFO L93 Difference]: Finished difference Result 621 states and 677 transitions. [2024-09-12 21:49:13,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2024-09-12 21:49:13,866 INFO L78 Accepts]: Start accepts. Automaton has has 170 states, 170 states have (on average 1.6941176470588235) internal successors, (288), 170 states have internal predecessors, (288), 111 states have call successors, (112), 2 states have call predecessors, (112), 1 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) Word has length 444 [2024-09-12 21:49:13,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:49:13,869 INFO L225 Difference]: With dead ends: 621 [2024-09-12 21:49:13,869 INFO L226 Difference]: Without dead ends: 448 [2024-09-12 21:49:13,870 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1110 GetRequests, 833 SyntacticMatches, 109 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18846 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=6445, Invalid=22285, Unknown=0, NotChecked=0, Total=28730 [2024-09-12 21:49:13,870 INFO L434 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 1436 mSDsCounter, 0 mSdLazyCounter, 2119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1554 SdHoareTripleChecker+Invalid, 2119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 21:49:13,870 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1554 Invalid, 2119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2119 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 21:49:13,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-09-12 21:49:13,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2024-09-12 21:49:13,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 334 states have (on average 1.0059880239520957) internal successors, (336), 335 states have internal predecessors, (336), 57 states have call successors, (57), 57 states have call predecessors, (57), 56 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-09-12 21:49:13,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 449 transitions. [2024-09-12 21:49:13,906 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 449 transitions. Word has length 444 [2024-09-12 21:49:13,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:49:13,906 INFO L474 AbstractCegarLoop]: Abstraction has 448 states and 449 transitions. [2024-09-12 21:49:13,906 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 170 states, 170 states have (on average 1.6941176470588235) internal successors, (288), 170 states have internal predecessors, (288), 111 states have call successors, (112), 2 states have call predecessors, (112), 1 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-09-12 21:49:13,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:49:13,906 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 449 transitions. [2024-09-12 21:49:13,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2024-09-12 21:49:13,907 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:49:13,908 INFO L216 NwaCegarLoop]: trace histogram [55, 55, 55, 55, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:49:13,920 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Ended with exit code 0 [2024-09-12 21:49:14,108 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 109 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable109 [2024-09-12 21:49:14,108 INFO L399 AbstractCegarLoop]: === Iteration 111 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:49:14,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:49:14,108 INFO L85 PathProgramCache]: Analyzing trace with hash 367599031, now seen corresponding path program 108 times [2024-09-12 21:49:14,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:49:14,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718492797] [2024-09-12 21:49:14,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:49:14,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:49:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,583 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:49:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 21:49:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 21:49:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,586 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 21:49:16,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,586 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 21:49:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 21:49:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 21:49:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 21:49:16,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 21:49:16,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 21:49:16,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 21:49:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 21:49:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 21:49:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-09-12 21:49:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 21:49:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 21:49:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 21:49:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 21:49:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 21:49:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-09-12 21:49:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 21:49:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 21:49:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-09-12 21:49:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-09-12 21:49:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-09-12 21:49:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-09-12 21:49:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-09-12 21:49:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-09-12 21:49:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 21:49:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-09-12 21:49:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-09-12 21:49:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-09-12 21:49:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,608 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-09-12 21:49:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,608 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-09-12 21:49:16,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-09-12 21:49:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,610 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-09-12 21:49:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-09-12 21:49:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,612 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2024-09-12 21:49:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,612 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-09-12 21:49:16,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-09-12 21:49:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,614 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-09-12 21:49:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-09-12 21:49:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-09-12 21:49:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-09-12 21:49:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-09-12 21:49:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2024-09-12 21:49:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-09-12 21:49:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2024-09-12 21:49:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2024-09-12 21:49:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2024-09-12 21:49:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2024-09-12 21:49:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2024-09-12 21:49:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2024-09-12 21:49:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2024-09-12 21:49:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2024-09-12 21:49:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:16,627 INFO L134 CoverageAnalysis]: Checked inductivity of 11773 backedges. 1593 proven. 4456 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-09-12 21:49:16,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:49:16,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718492797] [2024-09-12 21:49:16,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718492797] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:49:16,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330888218] [2024-09-12 21:49:16,627 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:49:16,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:49:16,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:49:16,628 INFO L229 MonitoredProcess]: Starting monitored process 110 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:49:16,629 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2024-09-12 21:49:16,832 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 55 check-sat command(s) [2024-09-12 21:49:16,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:49:16,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 1074 conjuncts, 116 conjuncts are in the unsatisfiable core [2024-09-12 21:49:16,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:49:17,064 INFO L134 CoverageAnalysis]: Checked inductivity of 11773 backedges. 1648 proven. 4401 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-09-12 21:49:17,064 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:49:19,247 INFO L134 CoverageAnalysis]: Checked inductivity of 11773 backedges. 1648 proven. 4401 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-09-12 21:49:19,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330888218] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:49:19,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:49:19,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 60, 60] total 63 [2024-09-12 21:49:19,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912494359] [2024-09-12 21:49:19,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:49:19,247 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-09-12 21:49:19,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:49:19,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-09-12 21:49:19,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1666, Invalid=2240, Unknown=0, NotChecked=0, Total=3906 [2024-09-12 21:49:19,248 INFO L87 Difference]: Start difference. First operand 448 states and 449 transitions. Second operand has 63 states, 63 states have (on average 2.8253968253968256) internal successors, (178), 61 states have internal predecessors, (178), 56 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-09-12 21:49:19,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:49:19,597 INFO L93 Difference]: Finished difference Result 461 states and 463 transitions. [2024-09-12 21:49:19,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-09-12 21:49:19,597 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 2.8253968253968256) internal successors, (178), 61 states have internal predecessors, (178), 56 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Word has length 445 [2024-09-12 21:49:19,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:49:19,600 INFO L225 Difference]: With dead ends: 461 [2024-09-12 21:49:19,600 INFO L226 Difference]: Without dead ends: 459 [2024-09-12 21:49:19,600 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1114 GetRequests, 942 SyntacticMatches, 110 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3679 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1672, Invalid=2360, Unknown=0, NotChecked=0, Total=4032 [2024-09-12 21:49:19,600 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 21:49:19,600 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 152 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 21:49:19,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-09-12 21:49:19,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 455. [2024-09-12 21:49:19,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 339 states have (on average 1.0058997050147493) internal successors, (341), 340 states have internal predecessors, (341), 58 states have call successors, (58), 58 states have call predecessors, (58), 57 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2024-09-12 21:49:19,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 456 transitions. [2024-09-12 21:49:19,657 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 456 transitions. Word has length 445 [2024-09-12 21:49:19,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:49:19,657 INFO L474 AbstractCegarLoop]: Abstraction has 455 states and 456 transitions. [2024-09-12 21:49:19,658 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 2.8253968253968256) internal successors, (178), 61 states have internal predecessors, (178), 56 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-09-12 21:49:19,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:49:19,658 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 456 transitions. [2024-09-12 21:49:19,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2024-09-12 21:49:19,660 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:49:19,660 INFO L216 NwaCegarLoop]: trace histogram [56, 56, 56, 55, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:49:19,677 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Forceful destruction successful, exit code 0 [2024-09-12 21:49:19,860 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable110 [2024-09-12 21:49:19,861 INFO L399 AbstractCegarLoop]: === Iteration 112 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:49:19,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:49:19,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1522975628, now seen corresponding path program 109 times [2024-09-12 21:49:19,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:49:19,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417049375] [2024-09-12 21:49:19,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:49:19,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:49:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:49:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,434 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 21:49:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 21:49:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,436 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 21:49:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,437 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 21:49:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,437 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 21:49:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,438 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 21:49:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 21:49:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 21:49:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 21:49:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 21:49:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 21:49:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,443 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 21:49:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-09-12 21:49:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 21:49:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 21:49:24,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 21:49:24,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 21:49:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 21:49:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,449 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-09-12 21:49:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,449 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 21:49:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 21:49:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-09-12 21:49:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,452 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-09-12 21:49:24,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-09-12 21:49:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-09-12 21:49:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-09-12 21:49:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-09-12 21:49:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 21:49:24,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-09-12 21:49:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-09-12 21:49:24,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-09-12 21:49:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-09-12 21:49:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-09-12 21:49:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-09-12 21:49:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-09-12 21:49:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-09-12 21:49:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2024-09-12 21:49:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-09-12 21:49:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-09-12 21:49:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,466 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-09-12 21:49:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-09-12 21:49:24,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-09-12 21:49:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,469 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-09-12 21:49:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-09-12 21:49:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2024-09-12 21:49:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,471 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-09-12 21:49:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,472 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2024-09-12 21:49:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2024-09-12 21:49:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,474 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2024-09-12 21:49:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2024-09-12 21:49:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,476 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2024-09-12 21:49:24,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,476 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2024-09-12 21:49:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2024-09-12 21:49:24,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2024-09-12 21:49:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2024-09-12 21:49:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,481 INFO L134 CoverageAnalysis]: Checked inductivity of 12155 backedges. 4512 proven. 1703 refuted. 0 times theorem prover too weak. 5940 trivial. 0 not checked. [2024-09-12 21:49:24,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:49:24,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417049375] [2024-09-12 21:49:24,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417049375] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:49:24,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500357420] [2024-09-12 21:49:24,481 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 21:49:24,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:49:24,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:49:24,482 INFO L229 MonitoredProcess]: Starting monitored process 111 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:49:24,483 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process [2024-09-12 21:49:24,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:24,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 1088 conjuncts, 114 conjuncts are in the unsatisfiable core [2024-09-12 21:49:24,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:49:28,757 INFO L134 CoverageAnalysis]: Checked inductivity of 12155 backedges. 4675 proven. 1540 refuted. 0 times theorem prover too weak. 5940 trivial. 0 not checked. [2024-09-12 21:49:28,758 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:49:32,114 INFO L134 CoverageAnalysis]: Checked inductivity of 12155 backedges. 4675 proven. 1540 refuted. 0 times theorem prover too weak. 5940 trivial. 0 not checked. [2024-09-12 21:49:32,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500357420] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:49:32,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:49:32,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [115, 115, 115] total 173 [2024-09-12 21:49:32,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349601041] [2024-09-12 21:49:32,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:49:32,115 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 173 states [2024-09-12 21:49:32,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:49:32,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 173 interpolants. [2024-09-12 21:49:32,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6674, Invalid=23082, Unknown=0, NotChecked=0, Total=29756 [2024-09-12 21:49:32,118 INFO L87 Difference]: Start difference. First operand 455 states and 456 transitions. Second operand has 173 states, 173 states have (on average 1.69364161849711) internal successors, (293), 173 states have internal predecessors, (293), 113 states have call successors, (114), 2 states have call predecessors, (114), 1 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2024-09-12 21:49:32,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:49:32,941 INFO L93 Difference]: Finished difference Result 632 states and 689 transitions. [2024-09-12 21:49:32,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2024-09-12 21:49:32,942 INFO L78 Accepts]: Start accepts. Automaton has has 173 states, 173 states have (on average 1.69364161849711) internal successors, (293), 173 states have internal predecessors, (293), 113 states have call successors, (114), 2 states have call predecessors, (114), 1 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) Word has length 452 [2024-09-12 21:49:32,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:49:32,944 INFO L225 Difference]: With dead ends: 632 [2024-09-12 21:49:32,944 INFO L226 Difference]: Without dead ends: 456 [2024-09-12 21:49:32,946 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1130 GetRequests, 848 SyntacticMatches, 111 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19525 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=6674, Invalid=23082, Unknown=0, NotChecked=0, Total=29756 [2024-09-12 21:49:32,946 INFO L434 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 21:49:32,946 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 923 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1462 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 21:49:32,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-09-12 21:49:32,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2024-09-12 21:49:32,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 340 states have (on average 1.0058823529411764) internal successors, (342), 341 states have internal predecessors, (342), 58 states have call successors, (58), 58 states have call predecessors, (58), 57 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2024-09-12 21:49:32,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 457 transitions. [2024-09-12 21:49:32,983 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 457 transitions. Word has length 452 [2024-09-12 21:49:32,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:49:32,983 INFO L474 AbstractCegarLoop]: Abstraction has 456 states and 457 transitions. [2024-09-12 21:49:32,984 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 173 states, 173 states have (on average 1.69364161849711) internal successors, (293), 173 states have internal predecessors, (293), 113 states have call successors, (114), 2 states have call predecessors, (114), 1 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2024-09-12 21:49:32,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:49:32,984 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 457 transitions. [2024-09-12 21:49:32,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2024-09-12 21:49:32,985 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:49:32,985 INFO L216 NwaCegarLoop]: trace histogram [56, 56, 56, 56, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:49:32,998 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Ended with exit code 0 [2024-09-12 21:49:33,185 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2024-09-12 21:49:33,185 INFO L399 AbstractCegarLoop]: === Iteration 113 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:49:33,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:49:33,186 INFO L85 PathProgramCache]: Analyzing trace with hash -896464744, now seen corresponding path program 110 times [2024-09-12 21:49:33,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:49:33,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152366923] [2024-09-12 21:49:33,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:49:33,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:49:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:49:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,788 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 21:49:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 21:49:35,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 21:49:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 21:49:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 21:49:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 21:49:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 21:49:35,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 21:49:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,794 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 21:49:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 21:49:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 21:49:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 21:49:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-09-12 21:49:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 21:49:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 21:49:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 21:49:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-09-12 21:49:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 21:49:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-09-12 21:49:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-09-12 21:49:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 21:49:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 21:49:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 21:49:35,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-09-12 21:49:35,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-09-12 21:49:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-09-12 21:49:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-09-12 21:49:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 21:49:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-09-12 21:49:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-09-12 21:49:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-09-12 21:49:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 21:49:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2024-09-12 21:49:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-09-12 21:49:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2024-09-12 21:49:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-09-12 21:49:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2024-09-12 21:49:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2024-09-12 21:49:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-09-12 21:49:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-09-12 21:49:35,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-09-12 21:49:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-09-12 21:49:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-09-12 21:49:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2024-09-12 21:49:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,823 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2024-09-12 21:49:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2024-09-12 21:49:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2024-09-12 21:49:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2024-09-12 21:49:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2024-09-12 21:49:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,827 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2024-09-12 21:49:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2024-09-12 21:49:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2024-09-12 21:49:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2024-09-12 21:49:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2024-09-12 21:49:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2024-09-12 21:49:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:35,833 INFO L134 CoverageAnalysis]: Checked inductivity of 12211 backedges. 1650 proven. 4621 refuted. 0 times theorem prover too weak. 5940 trivial. 0 not checked. [2024-09-12 21:49:35,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:49:35,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152366923] [2024-09-12 21:49:35,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152366923] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:49:35,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779096667] [2024-09-12 21:49:35,833 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:49:35,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:49:35,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:49:35,834 INFO L229 MonitoredProcess]: Starting monitored process 112 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:49:35,835 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Waiting until timeout for monitored process [2024-09-12 21:49:35,978 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:49:35,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:49:35,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 115 conjuncts are in the unsatisfiable core [2024-09-12 21:49:35,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:49:36,212 INFO L134 CoverageAnalysis]: Checked inductivity of 12211 backedges. 1706 proven. 4565 refuted. 0 times theorem prover too weak. 5940 trivial. 0 not checked. [2024-09-12 21:49:36,212 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:49:38,547 INFO L134 CoverageAnalysis]: Checked inductivity of 12211 backedges. 1706 proven. 4565 refuted. 0 times theorem prover too weak. 5940 trivial. 0 not checked. [2024-09-12 21:49:38,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779096667] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:49:38,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:49:38,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61, 61] total 64 [2024-09-12 21:49:38,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886457756] [2024-09-12 21:49:38,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:49:38,548 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-09-12 21:49:38,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:49:38,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-09-12 21:49:38,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1724, Invalid=2308, Unknown=0, NotChecked=0, Total=4032 [2024-09-12 21:49:38,549 INFO L87 Difference]: Start difference. First operand 456 states and 457 transitions. Second operand has 64 states, 64 states have (on average 2.828125) internal successors, (181), 62 states have internal predecessors, (181), 57 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-09-12 21:49:38,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:49:38,867 INFO L93 Difference]: Finished difference Result 469 states and 471 transitions. [2024-09-12 21:49:38,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-09-12 21:49:38,868 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 2.828125) internal successors, (181), 62 states have internal predecessors, (181), 57 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Word has length 453 [2024-09-12 21:49:38,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:49:38,871 INFO L225 Difference]: With dead ends: 469 [2024-09-12 21:49:38,871 INFO L226 Difference]: Without dead ends: 467 [2024-09-12 21:49:38,871 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1134 GetRequests, 957 SyntacticMatches, 114 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3916 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1730, Invalid=2430, Unknown=0, NotChecked=0, Total=4160 [2024-09-12 21:49:38,871 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:49:38,872 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 124 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:49:38,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-09-12 21:49:38,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 463. [2024-09-12 21:49:38,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 345 states have (on average 1.0057971014492753) internal successors, (347), 346 states have internal predecessors, (347), 59 states have call successors, (59), 59 states have call predecessors, (59), 58 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2024-09-12 21:49:38,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 464 transitions. [2024-09-12 21:49:38,909 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 464 transitions. Word has length 453 [2024-09-12 21:49:38,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:49:38,909 INFO L474 AbstractCegarLoop]: Abstraction has 463 states and 464 transitions. [2024-09-12 21:49:38,909 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 2.828125) internal successors, (181), 62 states have internal predecessors, (181), 57 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-09-12 21:49:38,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:49:38,910 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 464 transitions. [2024-09-12 21:49:38,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-09-12 21:49:38,911 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:49:38,911 INFO L216 NwaCegarLoop]: trace histogram [57, 57, 57, 56, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:49:38,930 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Forceful destruction successful, exit code 0 [2024-09-12 21:49:39,112 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2024-09-12 21:49:39,112 INFO L399 AbstractCegarLoop]: === Iteration 114 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:49:39,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:49:39,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1943271029, now seen corresponding path program 111 times [2024-09-12 21:49:39,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:49:39,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28088928] [2024-09-12 21:49:39,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:49:39,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:49:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:49:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 21:49:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 21:49:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 21:49:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 21:49:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 21:49:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 21:49:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 21:49:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 21:49:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,868 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 21:49:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 21:49:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 21:49:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 21:49:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,871 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-09-12 21:49:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 21:49:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 21:49:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,874 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 21:49:43,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,874 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-09-12 21:49:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,875 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 21:49:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,876 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-09-12 21:49:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-09-12 21:49:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 21:49:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 21:49:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 21:49:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-09-12 21:49:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-09-12 21:49:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-09-12 21:49:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-09-12 21:49:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,883 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 21:49:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-09-12 21:49:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-09-12 21:49:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,886 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-09-12 21:49:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,887 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 21:49:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,887 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2024-09-12 21:49:43,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,888 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-09-12 21:49:43,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,889 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2024-09-12 21:49:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-09-12 21:49:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2024-09-12 21:49:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,892 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2024-09-12 21:49:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,892 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-09-12 21:49:43,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-09-12 21:49:43,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-09-12 21:49:43,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-09-12 21:49:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-09-12 21:49:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2024-09-12 21:49:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2024-09-12 21:49:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2024-09-12 21:49:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2024-09-12 21:49:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2024-09-12 21:49:43,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2024-09-12 21:49:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2024-09-12 21:49:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2024-09-12 21:49:43,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2024-09-12 21:49:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2024-09-12 21:49:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2024-09-12 21:49:43,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2024-09-12 21:49:43,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2024-09-12 21:49:43,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:43,909 INFO L134 CoverageAnalysis]: Checked inductivity of 12600 backedges. 4678 proven. 1762 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2024-09-12 21:49:43,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:49:43,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28088928] [2024-09-12 21:49:43,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28088928] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:49:43,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742217035] [2024-09-12 21:49:43,909 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:49:43,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:49:43,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:49:43,910 INFO L229 MonitoredProcess]: Starting monitored process 113 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:49:43,911 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2024-09-12 21:49:44,131 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 57 check-sat command(s) [2024-09-12 21:49:44,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:49:44,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 116 conjuncts are in the unsatisfiable core [2024-09-12 21:49:44,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:49:48,363 INFO L134 CoverageAnalysis]: Checked inductivity of 12600 backedges. 4844 proven. 1596 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2024-09-12 21:49:48,363 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:49:51,818 INFO L134 CoverageAnalysis]: Checked inductivity of 12600 backedges. 4844 proven. 1596 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2024-09-12 21:49:51,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742217035] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:49:51,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:49:51,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [117, 117, 117] total 176 [2024-09-12 21:49:51,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465637838] [2024-09-12 21:49:51,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:49:51,819 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 176 states [2024-09-12 21:49:51,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:49:51,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 176 interpolants. [2024-09-12 21:49:51,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6907, Invalid=23893, Unknown=0, NotChecked=0, Total=30800 [2024-09-12 21:49:51,822 INFO L87 Difference]: Start difference. First operand 463 states and 464 transitions. Second operand has 176 states, 176 states have (on average 1.6931818181818181) internal successors, (298), 176 states have internal predecessors, (298), 115 states have call successors, (116), 2 states have call predecessors, (116), 1 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) [2024-09-12 21:49:52,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:49:52,924 INFO L93 Difference]: Finished difference Result 643 states and 701 transitions. [2024-09-12 21:49:52,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2024-09-12 21:49:52,925 INFO L78 Accepts]: Start accepts. Automaton has has 176 states, 176 states have (on average 1.6931818181818181) internal successors, (298), 176 states have internal predecessors, (298), 115 states have call successors, (116), 2 states have call predecessors, (116), 1 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) Word has length 460 [2024-09-12 21:49:52,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:49:52,927 INFO L225 Difference]: With dead ends: 643 [2024-09-12 21:49:52,927 INFO L226 Difference]: Without dead ends: 464 [2024-09-12 21:49:52,928 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1150 GetRequests, 863 SyntacticMatches, 113 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20216 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=6907, Invalid=23893, Unknown=0, NotChecked=0, Total=30800 [2024-09-12 21:49:52,929 INFO L434 NwaCegarLoop]: 122 mSDtfsCounter, 0 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 2142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 2142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 21:49:52,929 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1365 Invalid, 2142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2142 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 21:49:52,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-09-12 21:49:52,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2024-09-12 21:49:52,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 346 states have (on average 1.0057803468208093) internal successors, (348), 347 states have internal predecessors, (348), 59 states have call successors, (59), 59 states have call predecessors, (59), 58 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2024-09-12 21:49:52,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 465 transitions. [2024-09-12 21:49:52,968 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 465 transitions. Word has length 460 [2024-09-12 21:49:52,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:49:52,968 INFO L474 AbstractCegarLoop]: Abstraction has 464 states and 465 transitions. [2024-09-12 21:49:52,969 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 176 states, 176 states have (on average 1.6931818181818181) internal successors, (298), 176 states have internal predecessors, (298), 115 states have call successors, (116), 2 states have call predecessors, (116), 1 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) [2024-09-12 21:49:52,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:49:52,969 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 465 transitions. [2024-09-12 21:49:52,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-09-12 21:49:52,971 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:49:52,971 INFO L216 NwaCegarLoop]: trace histogram [57, 57, 57, 57, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:49:52,986 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Ended with exit code 0 [2024-09-12 21:49:53,171 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2024-09-12 21:49:53,172 INFO L399 AbstractCegarLoop]: === Iteration 115 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:49:53,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:49:53,172 INFO L85 PathProgramCache]: Analyzing trace with hash -149519721, now seen corresponding path program 112 times [2024-09-12 21:49:53,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:49:53,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954137421] [2024-09-12 21:49:53,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:49:53,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:49:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:49:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 21:49:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,871 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 21:49:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 21:49:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 21:49:55,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 21:49:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,874 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 21:49:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,875 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 21:49:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,876 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 21:49:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,876 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 21:49:55,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 21:49:55,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-09-12 21:49:55,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 21:49:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 21:49:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-09-12 21:49:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 21:49:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 21:49:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-09-12 21:49:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,883 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-12 21:49:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-09-12 21:49:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-09-12 21:49:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 21:49:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,886 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-09-12 21:49:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,887 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 21:49:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,888 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-09-12 21:49:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,889 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 21:49:55,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,889 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 21:49:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-09-12 21:49:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-09-12 21:49:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,892 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-09-12 21:49:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2024-09-12 21:49:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-09-12 21:49:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-12 21:49:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-09-12 21:49:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-09-12 21:49:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-09-12 21:49:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-09-12 21:49:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-09-12 21:49:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2024-09-12 21:49:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-09-12 21:49:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2024-09-12 21:49:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-09-12 21:49:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-09-12 21:49:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-09-12 21:49:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-09-12 21:49:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-09-12 21:49:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-09-12 21:49:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2024-09-12 21:49:55,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2024-09-12 21:49:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2024-09-12 21:49:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2024-09-12 21:49:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,910 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2024-09-12 21:49:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2024-09-12 21:49:55,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,912 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2024-09-12 21:49:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,912 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2024-09-12 21:49:55,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,913 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2024-09-12 21:49:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2024-09-12 21:49:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:49:55,916 INFO L134 CoverageAnalysis]: Checked inductivity of 12657 backedges. 1708 proven. 4789 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2024-09-12 21:49:55,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:49:55,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954137421] [2024-09-12 21:49:55,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954137421] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:49:55,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262447143] [2024-09-12 21:49:55,916 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:49:55,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:49:55,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:49:55,917 INFO L229 MonitoredProcess]: Starting monitored process 114 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:49:55,918 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Waiting until timeout for monitored process [2024-09-12 21:49:56,067 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:49:56,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:49:56,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 1112 conjuncts, 120 conjuncts are in the unsatisfiable core [2024-09-12 21:49:56,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:49:56,302 INFO L134 CoverageAnalysis]: Checked inductivity of 12657 backedges. 1765 proven. 4732 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2024-09-12 21:49:56,302 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:49:58,655 INFO L134 CoverageAnalysis]: Checked inductivity of 12657 backedges. 1765 proven. 4732 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2024-09-12 21:49:58,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262447143] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:49:58,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:49:58,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62, 62] total 65 [2024-09-12 21:49:58,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14045119] [2024-09-12 21:49:58,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:49:58,656 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2024-09-12 21:49:58,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:49:58,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2024-09-12 21:49:58,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1783, Invalid=2377, Unknown=0, NotChecked=0, Total=4160 [2024-09-12 21:49:58,657 INFO L87 Difference]: Start difference. First operand 464 states and 465 transitions. Second operand has 65 states, 65 states have (on average 2.830769230769231) internal successors, (184), 63 states have internal predecessors, (184), 58 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-09-12 21:49:58,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:49:58,976 INFO L93 Difference]: Finished difference Result 477 states and 479 transitions. [2024-09-12 21:49:58,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-09-12 21:49:58,977 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 2.830769230769231) internal successors, (184), 63 states have internal predecessors, (184), 58 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Word has length 461 [2024-09-12 21:49:58,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:49:58,979 INFO L225 Difference]: With dead ends: 477 [2024-09-12 21:49:58,979 INFO L226 Difference]: Without dead ends: 475 [2024-09-12 21:49:58,980 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1154 GetRequests, 976 SyntacticMatches, 114 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3927 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1789, Invalid=2501, Unknown=0, NotChecked=0, Total=4290 [2024-09-12 21:49:58,980 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:49:58,980 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 139 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:49:58,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-09-12 21:49:59,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 471. [2024-09-12 21:49:59,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 351 states have (on average 1.0056980056980056) internal successors, (353), 352 states have internal predecessors, (353), 60 states have call successors, (60), 60 states have call predecessors, (60), 59 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2024-09-12 21:49:59,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 472 transitions. [2024-09-12 21:49:59,019 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 472 transitions. Word has length 461 [2024-09-12 21:49:59,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:49:59,020 INFO L474 AbstractCegarLoop]: Abstraction has 471 states and 472 transitions. [2024-09-12 21:49:59,020 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 2.830769230769231) internal successors, (184), 63 states have internal predecessors, (184), 58 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-09-12 21:49:59,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:49:59,020 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 472 transitions. [2024-09-12 21:49:59,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-09-12 21:49:59,021 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:49:59,021 INFO L216 NwaCegarLoop]: trace histogram [58, 58, 58, 57, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:49:59,034 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Forceful destruction successful, exit code 0 [2024-09-12 21:49:59,221 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 114 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable114 [2024-09-12 21:49:59,222 INFO L399 AbstractCegarLoop]: === Iteration 116 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:49:59,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:49:59,222 INFO L85 PathProgramCache]: Analyzing trace with hash 394797740, now seen corresponding path program 113 times [2024-09-12 21:49:59,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:49:59,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141322951] [2024-09-12 21:49:59,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:49:59,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:49:59,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:50:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 21:50:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,153 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 21:50:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 21:50:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 21:50:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 21:50:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 21:50:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 21:50:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 21:50:04,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,159 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 21:50:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 21:50:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-09-12 21:50:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,161 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 21:50:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 21:50:04,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-09-12 21:50:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 21:50:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 21:50:04,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-09-12 21:50:04,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-12 21:50:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,167 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-09-12 21:50:04,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-09-12 21:50:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 21:50:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,169 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-09-12 21:50:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 21:50:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,171 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-09-12 21:50:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 21:50:04,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 21:50:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-09-12 21:50:04,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,174 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-09-12 21:50:04,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,175 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-09-12 21:50:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,176 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2024-09-12 21:50:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-09-12 21:50:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-12 21:50:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-09-12 21:50:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,179 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-09-12 21:50:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,180 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-09-12 21:50:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,181 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-09-12 21:50:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,182 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-09-12 21:50:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,183 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2024-09-12 21:50:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-09-12 21:50:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,186 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2024-09-12 21:50:04,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,187 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-09-12 21:50:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-09-12 21:50:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,189 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-09-12 21:50:04,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,190 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-09-12 21:50:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,192 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-09-12 21:50:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-09-12 21:50:04,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2024-09-12 21:50:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2024-09-12 21:50:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,195 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2024-09-12 21:50:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2024-09-12 21:50:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,197 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2024-09-12 21:50:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2024-09-12 21:50:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2024-09-12 21:50:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2024-09-12 21:50:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2024-09-12 21:50:04,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,201 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2024-09-12 21:50:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,202 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2024-09-12 21:50:04,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:04,204 INFO L134 CoverageAnalysis]: Checked inductivity of 13053 backedges. 4847 proven. 1822 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2024-09-12 21:50:04,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:50:04,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141322951] [2024-09-12 21:50:04,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141322951] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:50:04,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171082705] [2024-09-12 21:50:04,204 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:50:04,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:50:04,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:50:04,205 INFO L229 MonitoredProcess]: Starting monitored process 115 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:50:04,206 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Waiting until timeout for monitored process [2024-09-12 21:50:04,410 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 58 check-sat command(s) [2024-09-12 21:50:04,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:50:04,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 118 conjuncts are in the unsatisfiable core [2024-09-12 21:50:04,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:50:08,764 INFO L134 CoverageAnalysis]: Checked inductivity of 13053 backedges. 5016 proven. 1653 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2024-09-12 21:50:08,764 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:50:12,337 INFO L134 CoverageAnalysis]: Checked inductivity of 13053 backedges. 5016 proven. 1653 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2024-09-12 21:50:12,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171082705] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:50:12,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:50:12,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [119, 119, 119] total 179 [2024-09-12 21:50:12,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949940264] [2024-09-12 21:50:12,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:50:12,338 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 179 states [2024-09-12 21:50:12,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:50:12,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 179 interpolants. [2024-09-12 21:50:12,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7144, Invalid=24718, Unknown=0, NotChecked=0, Total=31862 [2024-09-12 21:50:12,341 INFO L87 Difference]: Start difference. First operand 471 states and 472 transitions. Second operand has 179 states, 179 states have (on average 1.6927374301675977) internal successors, (303), 179 states have internal predecessors, (303), 117 states have call successors, (118), 2 states have call predecessors, (118), 1 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2024-09-12 21:50:13,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:50:13,359 INFO L93 Difference]: Finished difference Result 654 states and 713 transitions. [2024-09-12 21:50:13,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2024-09-12 21:50:13,359 INFO L78 Accepts]: Start accepts. Automaton has has 179 states, 179 states have (on average 1.6927374301675977) internal successors, (303), 179 states have internal predecessors, (303), 117 states have call successors, (118), 2 states have call predecessors, (118), 1 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) Word has length 468 [2024-09-12 21:50:13,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:50:13,362 INFO L225 Difference]: With dead ends: 654 [2024-09-12 21:50:13,362 INFO L226 Difference]: Without dead ends: 472 [2024-09-12 21:50:13,363 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1170 GetRequests, 878 SyntacticMatches, 115 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20919 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=7144, Invalid=24718, Unknown=0, NotChecked=0, Total=31862 [2024-09-12 21:50:13,363 INFO L434 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 1934 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1184 SdHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 21:50:13,364 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1184 Invalid, 1934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1934 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 21:50:13,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-09-12 21:50:13,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2024-09-12 21:50:13,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 352 states have (on average 1.0056818181818181) internal successors, (354), 353 states have internal predecessors, (354), 60 states have call successors, (60), 60 states have call predecessors, (60), 59 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2024-09-12 21:50:13,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 473 transitions. [2024-09-12 21:50:13,408 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 473 transitions. Word has length 468 [2024-09-12 21:50:13,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:50:13,409 INFO L474 AbstractCegarLoop]: Abstraction has 472 states and 473 transitions. [2024-09-12 21:50:13,409 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 179 states, 179 states have (on average 1.6927374301675977) internal successors, (303), 179 states have internal predecessors, (303), 117 states have call successors, (118), 2 states have call predecessors, (118), 1 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2024-09-12 21:50:13,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:50:13,409 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 473 transitions. [2024-09-12 21:50:13,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2024-09-12 21:50:13,410 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:50:13,410 INFO L216 NwaCegarLoop]: trace histogram [58, 58, 58, 58, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:50:13,423 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Ended with exit code 0 [2024-09-12 21:50:13,611 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115,115 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:50:13,611 INFO L399 AbstractCegarLoop]: === Iteration 117 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:50:13,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:50:13,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1142869944, now seen corresponding path program 114 times [2024-09-12 21:50:13,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:50:13,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646992958] [2024-09-12 21:50:13,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:50:13,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:50:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:50:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 21:50:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 21:50:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 21:50:16,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 21:50:16,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-09-12 21:50:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 21:50:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 21:50:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 21:50:16,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 21:50:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 21:50:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-09-12 21:50:16,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 21:50:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-09-12 21:50:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 21:50:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-09-12 21:50:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 21:50:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-09-12 21:50:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 21:50:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-09-12 21:50:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-09-12 21:50:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-09-12 21:50:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-09-12 21:50:16,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-09-12 21:50:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-09-12 21:50:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-09-12 21:50:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-12 21:50:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-09-12 21:50:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-09-12 21:50:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-09-12 21:50:16,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 21:50:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2024-09-12 21:50:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-09-12 21:50:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2024-09-12 21:50:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2024-09-12 21:50:16,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2024-09-12 21:50:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2024-09-12 21:50:16,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2024-09-12 21:50:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-09-12 21:50:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-09-12 21:50:16,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-09-12 21:50:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-09-12 21:50:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-09-12 21:50:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-09-12 21:50:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,434 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2024-09-12 21:50:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2024-09-12 21:50:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2024-09-12 21:50:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,436 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2024-09-12 21:50:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,437 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2024-09-12 21:50:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,438 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2024-09-12 21:50:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2024-09-12 21:50:16,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2024-09-12 21:50:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2024-09-12 21:50:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2024-09-12 21:50:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2024-09-12 21:50:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,443 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2024-09-12 21:50:16,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2024-09-12 21:50:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2024-09-12 21:50:16,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:16,446 INFO L134 CoverageAnalysis]: Checked inductivity of 13111 backedges. 1767 proven. 4960 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2024-09-12 21:50:16,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:50:16,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646992958] [2024-09-12 21:50:16,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646992958] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:50:16,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312033827] [2024-09-12 21:50:16,446 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:50:16,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:50:16,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:50:16,447 INFO L229 MonitoredProcess]: Starting monitored process 116 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:50:16,448 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Waiting until timeout for monitored process [2024-09-12 21:50:16,665 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 58 check-sat command(s) [2024-09-12 21:50:16,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:50:16,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 1131 conjuncts, 122 conjuncts are in the unsatisfiable core [2024-09-12 21:50:16,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:50:16,902 INFO L134 CoverageAnalysis]: Checked inductivity of 13111 backedges. 1825 proven. 4902 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2024-09-12 21:50:16,902 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:50:19,290 INFO L134 CoverageAnalysis]: Checked inductivity of 13111 backedges. 1825 proven. 4902 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2024-09-12 21:50:19,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312033827] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:50:19,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:50:19,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63, 63] total 66 [2024-09-12 21:50:19,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32292342] [2024-09-12 21:50:19,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:50:19,291 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-09-12 21:50:19,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:50:19,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-09-12 21:50:19,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1843, Invalid=2447, Unknown=0, NotChecked=0, Total=4290 [2024-09-12 21:50:19,292 INFO L87 Difference]: Start difference. First operand 472 states and 473 transitions. Second operand has 66 states, 66 states have (on average 2.8333333333333335) internal successors, (187), 64 states have internal predecessors, (187), 59 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-09-12 21:50:19,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:50:19,622 INFO L93 Difference]: Finished difference Result 485 states and 487 transitions. [2024-09-12 21:50:19,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-09-12 21:50:19,623 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.8333333333333335) internal successors, (187), 64 states have internal predecessors, (187), 59 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Word has length 469 [2024-09-12 21:50:19,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:50:19,625 INFO L225 Difference]: With dead ends: 485 [2024-09-12 21:50:19,625 INFO L226 Difference]: Without dead ends: 483 [2024-09-12 21:50:19,626 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1174 GetRequests, 993 SyntacticMatches, 116 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4054 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1849, Invalid=2573, Unknown=0, NotChecked=0, Total=4422 [2024-09-12 21:50:19,626 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:50:19,626 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 151 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:50:19,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-09-12 21:50:19,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 479. [2024-09-12 21:50:19,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 357 states have (on average 1.0056022408963585) internal successors, (359), 358 states have internal predecessors, (359), 61 states have call successors, (61), 61 states have call predecessors, (61), 60 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2024-09-12 21:50:19,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 480 transitions. [2024-09-12 21:50:19,673 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 480 transitions. Word has length 469 [2024-09-12 21:50:19,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:50:19,674 INFO L474 AbstractCegarLoop]: Abstraction has 479 states and 480 transitions. [2024-09-12 21:50:19,674 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.8333333333333335) internal successors, (187), 64 states have internal predecessors, (187), 59 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-09-12 21:50:19,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:50:19,674 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 480 transitions. [2024-09-12 21:50:19,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2024-09-12 21:50:19,676 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:50:19,676 INFO L216 NwaCegarLoop]: trace histogram [59, 59, 59, 58, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:50:19,694 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Ended with exit code 0 [2024-09-12 21:50:19,877 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 116 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable116 [2024-09-12 21:50:19,877 INFO L399 AbstractCegarLoop]: === Iteration 118 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:50:19,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:50:19,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1341784469, now seen corresponding path program 115 times [2024-09-12 21:50:19,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:50:19,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052898249] [2024-09-12 21:50:19,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:50:19,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:50:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:50:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 21:50:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,010 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 21:50:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 21:50:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,012 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 21:50:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,013 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-09-12 21:50:25,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,014 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 21:50:25,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 21:50:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 21:50:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 21:50:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,018 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 21:50:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,019 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-09-12 21:50:25,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 21:50:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,021 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-09-12 21:50:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 21:50:25,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-09-12 21:50:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 21:50:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-09-12 21:50:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 21:50:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,026 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-09-12 21:50:25,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-09-12 21:50:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-09-12 21:50:25,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-09-12 21:50:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-09-12 21:50:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-09-12 21:50:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-09-12 21:50:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-12 21:50:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-09-12 21:50:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-09-12 21:50:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-09-12 21:50:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 21:50:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2024-09-12 21:50:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-09-12 21:50:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2024-09-12 21:50:25,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2024-09-12 21:50:25,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2024-09-12 21:50:25,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2024-09-12 21:50:25,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2024-09-12 21:50:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-09-12 21:50:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-09-12 21:50:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-09-12 21:50:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,044 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-09-12 21:50:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-09-12 21:50:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,046 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-09-12 21:50:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2024-09-12 21:50:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,048 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2024-09-12 21:50:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,048 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2024-09-12 21:50:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2024-09-12 21:50:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,050 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2024-09-12 21:50:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2024-09-12 21:50:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2024-09-12 21:50:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,053 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2024-09-12 21:50:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2024-09-12 21:50:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2024-09-12 21:50:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2024-09-12 21:50:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,056 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2024-09-12 21:50:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,057 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2024-09-12 21:50:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,058 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2024-09-12 21:50:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2024-09-12 21:50:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,061 INFO L134 CoverageAnalysis]: Checked inductivity of 13514 backedges. 5019 proven. 1883 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-09-12 21:50:25,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:50:25,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052898249] [2024-09-12 21:50:25,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052898249] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:50:25,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816200625] [2024-09-12 21:50:25,061 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 21:50:25,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:50:25,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:50:25,062 INFO L229 MonitoredProcess]: Starting monitored process 117 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:50:25,063 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Waiting until timeout for monitored process [2024-09-12 21:50:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:25,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 1145 conjuncts, 120 conjuncts are in the unsatisfiable core [2024-09-12 21:50:25,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:50:29,690 INFO L134 CoverageAnalysis]: Checked inductivity of 13514 backedges. 5191 proven. 1711 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-09-12 21:50:29,690 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:50:33,467 INFO L134 CoverageAnalysis]: Checked inductivity of 13514 backedges. 5191 proven. 1711 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-09-12 21:50:33,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816200625] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:50:33,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:50:33,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [121, 121, 121] total 182 [2024-09-12 21:50:33,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783050438] [2024-09-12 21:50:33,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:50:33,469 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 182 states [2024-09-12 21:50:33,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:50:33,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 182 interpolants. [2024-09-12 21:50:33,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7385, Invalid=25557, Unknown=0, NotChecked=0, Total=32942 [2024-09-12 21:50:33,471 INFO L87 Difference]: Start difference. First operand 479 states and 480 transitions. Second operand has 182 states, 182 states have (on average 1.6923076923076923) internal successors, (308), 182 states have internal predecessors, (308), 119 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2024-09-12 21:50:34,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:50:34,565 INFO L93 Difference]: Finished difference Result 665 states and 725 transitions. [2024-09-12 21:50:34,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2024-09-12 21:50:34,566 INFO L78 Accepts]: Start accepts. Automaton has has 182 states, 182 states have (on average 1.6923076923076923) internal successors, (308), 182 states have internal predecessors, (308), 119 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) Word has length 476 [2024-09-12 21:50:34,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:50:34,569 INFO L225 Difference]: With dead ends: 665 [2024-09-12 21:50:34,569 INFO L226 Difference]: Without dead ends: 480 [2024-09-12 21:50:34,570 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1190 GetRequests, 893 SyntacticMatches, 117 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21634 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=7385, Invalid=25557, Unknown=0, NotChecked=0, Total=32942 [2024-09-12 21:50:34,570 INFO L434 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 1846 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 21:50:34,570 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1687 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1846 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 21:50:34,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2024-09-12 21:50:34,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2024-09-12 21:50:34,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 358 states have (on average 1.005586592178771) internal successors, (360), 359 states have internal predecessors, (360), 61 states have call successors, (61), 61 states have call predecessors, (61), 60 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2024-09-12 21:50:34,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 481 transitions. [2024-09-12 21:50:34,611 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 481 transitions. Word has length 476 [2024-09-12 21:50:34,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:50:34,611 INFO L474 AbstractCegarLoop]: Abstraction has 480 states and 481 transitions. [2024-09-12 21:50:34,611 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 182 states, 182 states have (on average 1.6923076923076923) internal successors, (308), 182 states have internal predecessors, (308), 119 states have call successors, (120), 2 states have call predecessors, (120), 1 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2024-09-12 21:50:34,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:50:34,612 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 481 transitions. [2024-09-12 21:50:34,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2024-09-12 21:50:34,613 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:50:34,613 INFO L216 NwaCegarLoop]: trace histogram [59, 59, 59, 59, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:50:34,625 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Forceful destruction successful, exit code 0 [2024-09-12 21:50:34,813 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117,117 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:50:34,813 INFO L399 AbstractCegarLoop]: === Iteration 119 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:50:34,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:50:34,814 INFO L85 PathProgramCache]: Analyzing trace with hash 416604023, now seen corresponding path program 116 times [2024-09-12 21:50:34,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:50:34,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592091661] [2024-09-12 21:50:34,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:50:34,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:50:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:50:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-09-12 21:50:37,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 21:50:37,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,671 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 21:50:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,672 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 21:50:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,672 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 21:50:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 21:50:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,674 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 21:50:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-09-12 21:50:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 21:50:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 21:50:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 21:50:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 21:50:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-09-12 21:50:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 21:50:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-09-12 21:50:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-09-12 21:50:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 21:50:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 21:50:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 21:50:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-09-12 21:50:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-09-12 21:50:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 21:50:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-09-12 21:50:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 21:50:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-09-12 21:50:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 21:50:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,690 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-09-12 21:50:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,690 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-09-12 21:50:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 21:50:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-09-12 21:50:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2024-09-12 21:50:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-09-12 21:50:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-09-12 21:50:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-09-12 21:50:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2024-09-12 21:50:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,697 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2024-09-12 21:50:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-09-12 21:50:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-09-12 21:50:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-09-12 21:50:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-09-12 21:50:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-09-12 21:50:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,702 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-09-12 21:50:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-09-12 21:50:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-09-12 21:50:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-09-12 21:50:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2024-09-12 21:50:37,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,718 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2024-09-12 21:50:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,719 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2024-09-12 21:50:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2024-09-12 21:50:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,721 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2024-09-12 21:50:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,721 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2024-09-12 21:50:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,722 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2024-09-12 21:50:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2024-09-12 21:50:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,724 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2024-09-12 21:50:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,724 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2024-09-12 21:50:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,725 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2024-09-12 21:50:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2024-09-12 21:50:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2024-09-12 21:50:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:37,728 INFO L134 CoverageAnalysis]: Checked inductivity of 13573 backedges. 1827 proven. 5134 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-09-12 21:50:37,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:50:37,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592091661] [2024-09-12 21:50:37,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592091661] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:50:37,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562865667] [2024-09-12 21:50:37,728 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:50:37,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:50:37,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:50:37,730 INFO L229 MonitoredProcess]: Starting monitored process 118 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:50:37,730 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Waiting until timeout for monitored process [2024-09-12 21:50:37,879 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:50:37,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:50:37,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 121 conjuncts are in the unsatisfiable core [2024-09-12 21:50:37,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:50:38,120 INFO L134 CoverageAnalysis]: Checked inductivity of 13573 backedges. 1886 proven. 5075 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-09-12 21:50:38,120 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:50:40,612 INFO L134 CoverageAnalysis]: Checked inductivity of 13573 backedges. 1886 proven. 5075 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2024-09-12 21:50:40,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562865667] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:50:40,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:50:40,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 67 [2024-09-12 21:50:40,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675026350] [2024-09-12 21:50:40,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:50:40,613 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-09-12 21:50:40,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:50:40,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-09-12 21:50:40,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1904, Invalid=2518, Unknown=0, NotChecked=0, Total=4422 [2024-09-12 21:50:40,614 INFO L87 Difference]: Start difference. First operand 480 states and 481 transitions. Second operand has 67 states, 67 states have (on average 2.8358208955223883) internal successors, (190), 65 states have internal predecessors, (190), 60 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-09-12 21:50:40,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:50:40,965 INFO L93 Difference]: Finished difference Result 493 states and 495 transitions. [2024-09-12 21:50:40,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2024-09-12 21:50:40,965 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 2.8358208955223883) internal successors, (190), 65 states have internal predecessors, (190), 60 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Word has length 477 [2024-09-12 21:50:40,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:50:40,968 INFO L225 Difference]: With dead ends: 493 [2024-09-12 21:50:40,968 INFO L226 Difference]: Without dead ends: 491 [2024-09-12 21:50:40,968 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1194 GetRequests, 1008 SyntacticMatches, 120 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4303 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1910, Invalid=2646, Unknown=0, NotChecked=0, Total=4556 [2024-09-12 21:50:40,968 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 21:50:40,969 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 138 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 21:50:40,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-09-12 21:50:41,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 487. [2024-09-12 21:50:41,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 363 states have (on average 1.0055096418732783) internal successors, (365), 364 states have internal predecessors, (365), 62 states have call successors, (62), 62 states have call predecessors, (62), 61 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-09-12 21:50:41,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 488 transitions. [2024-09-12 21:50:41,020 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 488 transitions. Word has length 477 [2024-09-12 21:50:41,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:50:41,021 INFO L474 AbstractCegarLoop]: Abstraction has 487 states and 488 transitions. [2024-09-12 21:50:41,021 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.8358208955223883) internal successors, (190), 65 states have internal predecessors, (190), 60 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-09-12 21:50:41,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:50:41,021 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 488 transitions. [2024-09-12 21:50:41,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2024-09-12 21:50:41,022 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:50:41,022 INFO L216 NwaCegarLoop]: trace histogram [60, 60, 60, 59, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:50:41,036 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Ended with exit code 0 [2024-09-12 21:50:41,223 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118,118 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:50:41,223 INFO L399 AbstractCegarLoop]: === Iteration 120 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:50:41,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:50:41,223 INFO L85 PathProgramCache]: Analyzing trace with hash -181302836, now seen corresponding path program 117 times [2024-09-12 21:50:41,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:50:41,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349283696] [2024-09-12 21:50:41,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:50:41,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:50:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:50:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,476 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-09-12 21:50:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 21:50:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 21:50:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 21:50:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 21:50:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 21:50:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 21:50:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-09-12 21:50:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,483 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 21:50:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 21:50:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 21:50:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 21:50:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-09-12 21:50:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 21:50:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-09-12 21:50:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-09-12 21:50:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 21:50:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,490 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 21:50:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 21:50:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-09-12 21:50:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-09-12 21:50:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,493 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 21:50:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,494 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-09-12 21:50:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 21:50:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,496 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-09-12 21:50:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,496 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 21:50:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-09-12 21:50:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,498 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-09-12 21:50:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 21:50:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-09-12 21:50:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2024-09-12 21:50:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-09-12 21:50:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,502 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-09-12 21:50:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-09-12 21:50:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2024-09-12 21:50:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2024-09-12 21:50:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-09-12 21:50:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-09-12 21:50:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-09-12 21:50:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-09-12 21:50:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-09-12 21:50:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-09-12 21:50:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-09-12 21:50:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-09-12 21:50:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-09-12 21:50:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2024-09-12 21:50:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2024-09-12 21:50:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2024-09-12 21:50:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2024-09-12 21:50:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2024-09-12 21:50:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,517 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2024-09-12 21:50:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2024-09-12 21:50:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,519 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2024-09-12 21:50:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2024-09-12 21:50:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2024-09-12 21:50:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2024-09-12 21:50:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,522 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2024-09-12 21:50:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2024-09-12 21:50:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2024-09-12 21:50:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:46,526 INFO L134 CoverageAnalysis]: Checked inductivity of 13983 backedges. 5194 proven. 1945 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2024-09-12 21:50:46,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:50:46,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349283696] [2024-09-12 21:50:46,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349283696] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:50:46,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865468343] [2024-09-12 21:50:46,526 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:50:46,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:50:46,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:50:46,527 INFO L229 MonitoredProcess]: Starting monitored process 119 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:50:46,528 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Waiting until timeout for monitored process [2024-09-12 21:50:46,763 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 60 check-sat command(s) [2024-09-12 21:50:46,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:50:46,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 1164 conjuncts, 122 conjuncts are in the unsatisfiable core [2024-09-12 21:50:46,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:50:51,400 INFO L134 CoverageAnalysis]: Checked inductivity of 13983 backedges. 5369 proven. 1770 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2024-09-12 21:50:51,401 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:50:55,201 INFO L134 CoverageAnalysis]: Checked inductivity of 13983 backedges. 5369 proven. 1770 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2024-09-12 21:50:55,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865468343] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:50:55,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:50:55,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [123, 123, 123] total 185 [2024-09-12 21:50:55,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363707663] [2024-09-12 21:50:55,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:50:55,202 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 185 states [2024-09-12 21:50:55,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:50:55,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 185 interpolants. [2024-09-12 21:50:55,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7630, Invalid=26410, Unknown=0, NotChecked=0, Total=34040 [2024-09-12 21:50:55,206 INFO L87 Difference]: Start difference. First operand 487 states and 488 transitions. Second operand has 185 states, 185 states have (on average 1.691891891891892) internal successors, (313), 185 states have internal predecessors, (313), 121 states have call successors, (122), 2 states have call predecessors, (122), 1 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-09-12 21:50:56,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:50:56,293 INFO L93 Difference]: Finished difference Result 676 states and 737 transitions. [2024-09-12 21:50:56,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2024-09-12 21:50:56,293 INFO L78 Accepts]: Start accepts. Automaton has has 185 states, 185 states have (on average 1.691891891891892) internal successors, (313), 185 states have internal predecessors, (313), 121 states have call successors, (122), 2 states have call predecessors, (122), 1 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) Word has length 484 [2024-09-12 21:50:56,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:50:56,296 INFO L225 Difference]: With dead ends: 676 [2024-09-12 21:50:56,296 INFO L226 Difference]: Without dead ends: 488 [2024-09-12 21:50:56,298 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1210 GetRequests, 908 SyntacticMatches, 119 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22361 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=7630, Invalid=26410, Unknown=0, NotChecked=0, Total=34040 [2024-09-12 21:50:56,298 INFO L434 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 1437 mSDsCounter, 0 mSdLazyCounter, 1865 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1565 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 21:50:56,298 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1565 Invalid, 1865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1865 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 21:50:56,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-09-12 21:50:56,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2024-09-12 21:50:56,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 364 states have (on average 1.0054945054945055) internal successors, (366), 365 states have internal predecessors, (366), 62 states have call successors, (62), 62 states have call predecessors, (62), 61 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-09-12 21:50:56,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 489 transitions. [2024-09-12 21:50:56,340 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 489 transitions. Word has length 484 [2024-09-12 21:50:56,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:50:56,340 INFO L474 AbstractCegarLoop]: Abstraction has 488 states and 489 transitions. [2024-09-12 21:50:56,340 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 185 states, 185 states have (on average 1.691891891891892) internal successors, (313), 185 states have internal predecessors, (313), 121 states have call successors, (122), 2 states have call predecessors, (122), 1 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-09-12 21:50:56,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:50:56,340 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 489 transitions. [2024-09-12 21:50:56,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2024-09-12 21:50:56,342 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:50:56,342 INFO L216 NwaCegarLoop]: trace histogram [60, 60, 60, 60, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:50:56,355 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Forceful destruction successful, exit code 0 [2024-09-12 21:50:56,542 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 119 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable119 [2024-09-12 21:50:56,542 INFO L399 AbstractCegarLoop]: === Iteration 121 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:50:56,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:50:56,542 INFO L85 PathProgramCache]: Analyzing trace with hash -926638376, now seen corresponding path program 118 times [2024-09-12 21:50:56,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:50:56,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210738417] [2024-09-12 21:50:56,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:50:56,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:50:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,529 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:50:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-09-12 21:50:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,531 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 21:50:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,532 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 21:50:59,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 21:50:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 21:50:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 21:50:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,535 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 21:50:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,536 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 21:50:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,536 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 21:50:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,537 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 21:50:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 21:50:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 21:50:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-09-12 21:50:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 21:50:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 21:50:59,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 21:50:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-09-12 21:50:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 21:50:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,544 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-09-12 21:50:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,545 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 21:50:59,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,545 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-09-12 21:50:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,546 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-09-12 21:50:59,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-09-12 21:50:59,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-09-12 21:50:59,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-09-12 21:50:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 21:50:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-09-12 21:50:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 21:50:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 21:50:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-09-12 21:50:59,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-09-12 21:50:59,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,554 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-09-12 21:50:59,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,555 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2024-09-12 21:50:59,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2024-09-12 21:50:59,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,557 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2024-09-12 21:50:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,558 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2024-09-12 21:50:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-09-12 21:50:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-09-12 21:50:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-09-12 21:50:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-09-12 21:50:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-09-12 21:50:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,563 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-09-12 21:50:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,563 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-09-12 21:50:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-09-12 21:50:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-09-12 21:50:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2024-09-12 21:50:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2024-09-12 21:50:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2024-09-12 21:50:59,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2024-09-12 21:50:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2024-09-12 21:50:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,570 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2024-09-12 21:50:59,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2024-09-12 21:50:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2024-09-12 21:50:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2024-09-12 21:50:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,573 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2024-09-12 21:50:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2024-09-12 21:50:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2024-09-12 21:50:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2024-09-12 21:50:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2024-09-12 21:50:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:50:59,578 INFO L134 CoverageAnalysis]: Checked inductivity of 14043 backedges. 1888 proven. 5311 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2024-09-12 21:50:59,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:50:59,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210738417] [2024-09-12 21:50:59,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210738417] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:50:59,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314170330] [2024-09-12 21:50:59,579 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:50:59,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:50:59,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:50:59,580 INFO L229 MonitoredProcess]: Starting monitored process 120 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:50:59,580 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (120)] Waiting until timeout for monitored process [2024-09-12 21:50:59,740 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:50:59,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:50:59,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 1169 conjuncts, 126 conjuncts are in the unsatisfiable core [2024-09-12 21:50:59,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:51:00,007 INFO L134 CoverageAnalysis]: Checked inductivity of 14043 backedges. 1948 proven. 5251 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2024-09-12 21:51:00,007 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:51:02,550 INFO L134 CoverageAnalysis]: Checked inductivity of 14043 backedges. 1948 proven. 5251 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2024-09-12 21:51:02,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314170330] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:51:02,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:51:02,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 68 [2024-09-12 21:51:02,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314496409] [2024-09-12 21:51:02,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:51:02,551 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2024-09-12 21:51:02,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:51:02,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2024-09-12 21:51:02,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1966, Invalid=2590, Unknown=0, NotChecked=0, Total=4556 [2024-09-12 21:51:02,552 INFO L87 Difference]: Start difference. First operand 488 states and 489 transitions. Second operand has 68 states, 68 states have (on average 2.838235294117647) internal successors, (193), 66 states have internal predecessors, (193), 61 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-09-12 21:51:02,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:51:02,904 INFO L93 Difference]: Finished difference Result 501 states and 503 transitions. [2024-09-12 21:51:02,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-09-12 21:51:02,904 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 2.838235294117647) internal successors, (193), 66 states have internal predecessors, (193), 61 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) Word has length 485 [2024-09-12 21:51:02,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:51:02,907 INFO L225 Difference]: With dead ends: 501 [2024-09-12 21:51:02,907 INFO L226 Difference]: Without dead ends: 499 [2024-09-12 21:51:02,907 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1214 GetRequests, 1027 SyntacticMatches, 120 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4314 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1972, Invalid=2720, Unknown=0, NotChecked=0, Total=4692 [2024-09-12 21:51:02,907 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 21:51:02,907 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 153 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 21:51:02,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-09-12 21:51:02,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 495. [2024-09-12 21:51:02,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 369 states have (on average 1.005420054200542) internal successors, (371), 370 states have internal predecessors, (371), 63 states have call successors, (63), 63 states have call predecessors, (63), 62 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2024-09-12 21:51:02,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 496 transitions. [2024-09-12 21:51:02,953 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 496 transitions. Word has length 485 [2024-09-12 21:51:02,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:51:02,953 INFO L474 AbstractCegarLoop]: Abstraction has 495 states and 496 transitions. [2024-09-12 21:51:02,953 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 2.838235294117647) internal successors, (193), 66 states have internal predecessors, (193), 61 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-09-12 21:51:02,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:51:02,953 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 496 transitions. [2024-09-12 21:51:02,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2024-09-12 21:51:02,954 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:51:02,955 INFO L216 NwaCegarLoop]: trace histogram [61, 61, 61, 60, 60, 60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:51:02,967 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (120)] Ended with exit code 0 [2024-09-12 21:51:03,155 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120,120 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:51:03,155 INFO L399 AbstractCegarLoop]: === Iteration 122 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:51:03,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:51:03,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1490097333, now seen corresponding path program 119 times [2024-09-12 21:51:03,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:51:03,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916984950] [2024-09-12 21:51:03,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:51:03,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:51:03,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:51:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-09-12 21:51:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 21:51:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 21:51:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 21:51:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 21:51:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 21:51:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 21:51:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 21:51:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 21:51:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 21:51:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 21:51:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 21:51:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-09-12 21:51:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 21:51:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 21:51:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,608 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 21:51:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-09-12 21:51:08,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 21:51:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,610 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-09-12 21:51:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 21:51:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,612 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-09-12 21:51:08,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-09-12 21:51:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-09-12 21:51:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,614 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-09-12 21:51:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-09-12 21:51:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 21:51:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-09-12 21:51:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 21:51:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 21:51:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-09-12 21:51:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-09-12 21:51:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-09-12 21:51:08,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2024-09-12 21:51:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2024-09-12 21:51:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2024-09-12 21:51:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2024-09-12 21:51:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-09-12 21:51:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-09-12 21:51:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-09-12 21:51:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-09-12 21:51:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-09-12 21:51:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-09-12 21:51:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-09-12 21:51:08,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-09-12 21:51:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-09-12 21:51:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2024-09-12 21:51:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2024-09-12 21:51:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2024-09-12 21:51:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2024-09-12 21:51:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2024-09-12 21:51:08,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2024-09-12 21:51:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2024-09-12 21:51:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2024-09-12 21:51:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2024-09-12 21:51:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2024-09-12 21:51:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2024-09-12 21:51:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2024-09-12 21:51:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2024-09-12 21:51:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2024-09-12 21:51:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2024-09-12 21:51:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:08,646 INFO L134 CoverageAnalysis]: Checked inductivity of 14460 backedges. 5372 proven. 2008 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-09-12 21:51:08,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:51:08,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916984950] [2024-09-12 21:51:08,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916984950] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:51:08,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561702466] [2024-09-12 21:51:08,647 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:51:08,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:51:08,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:51:08,648 INFO L229 MonitoredProcess]: Starting monitored process 121 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:51:08,648 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (121)] Waiting until timeout for monitored process [2024-09-12 21:51:08,862 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 61 check-sat command(s) [2024-09-12 21:51:08,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:51:08,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 1183 conjuncts, 124 conjuncts are in the unsatisfiable core [2024-09-12 21:51:08,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:51:13,647 INFO L134 CoverageAnalysis]: Checked inductivity of 14460 backedges. 5550 proven. 1830 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-09-12 21:51:13,647 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:51:17,570 INFO L134 CoverageAnalysis]: Checked inductivity of 14460 backedges. 5550 proven. 1830 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-09-12 21:51:17,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561702466] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:51:17,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:51:17,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [125, 125, 125] total 188 [2024-09-12 21:51:17,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430655304] [2024-09-12 21:51:17,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:51:17,571 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 188 states [2024-09-12 21:51:17,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:51:17,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 188 interpolants. [2024-09-12 21:51:17,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7879, Invalid=27277, Unknown=0, NotChecked=0, Total=35156 [2024-09-12 21:51:17,573 INFO L87 Difference]: Start difference. First operand 495 states and 496 transitions. Second operand has 188 states, 188 states have (on average 1.6914893617021276) internal successors, (318), 188 states have internal predecessors, (318), 123 states have call successors, (124), 2 states have call predecessors, (124), 1 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2024-09-12 21:51:18,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:51:18,618 INFO L93 Difference]: Finished difference Result 687 states and 749 transitions. [2024-09-12 21:51:18,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2024-09-12 21:51:18,618 INFO L78 Accepts]: Start accepts. Automaton has has 188 states, 188 states have (on average 1.6914893617021276) internal successors, (318), 188 states have internal predecessors, (318), 123 states have call successors, (124), 2 states have call predecessors, (124), 1 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) Word has length 492 [2024-09-12 21:51:18,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:51:18,622 INFO L225 Difference]: With dead ends: 687 [2024-09-12 21:51:18,622 INFO L226 Difference]: Without dead ends: 496 [2024-09-12 21:51:18,624 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1230 GetRequests, 923 SyntacticMatches, 121 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23100 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=7879, Invalid=27277, Unknown=0, NotChecked=0, Total=35156 [2024-09-12 21:51:18,625 INFO L434 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 1865 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 21:51:18,625 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 922 Invalid, 1865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1865 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 21:51:18,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-09-12 21:51:18,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2024-09-12 21:51:18,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 370 states have (on average 1.0054054054054054) internal successors, (372), 371 states have internal predecessors, (372), 63 states have call successors, (63), 63 states have call predecessors, (63), 62 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2024-09-12 21:51:18,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 497 transitions. [2024-09-12 21:51:18,712 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 497 transitions. Word has length 492 [2024-09-12 21:51:18,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:51:18,712 INFO L474 AbstractCegarLoop]: Abstraction has 496 states and 497 transitions. [2024-09-12 21:51:18,713 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 188 states, 188 states have (on average 1.6914893617021276) internal successors, (318), 188 states have internal predecessors, (318), 123 states have call successors, (124), 2 states have call predecessors, (124), 1 states have return successors, (122), 122 states have call predecessors, (122), 122 states have call successors, (122) [2024-09-12 21:51:18,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:51:18,713 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 497 transitions. [2024-09-12 21:51:18,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2024-09-12 21:51:18,715 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:51:18,715 INFO L216 NwaCegarLoop]: trace histogram [61, 61, 61, 61, 60, 60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:51:18,732 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (121)] Ended with exit code 0 [2024-09-12 21:51:18,915 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121,121 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:51:18,916 INFO L399 AbstractCegarLoop]: === Iteration 123 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:51:18,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:51:18,916 INFO L85 PathProgramCache]: Analyzing trace with hash -938331049, now seen corresponding path program 120 times [2024-09-12 21:51:18,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:51:18,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141813524] [2024-09-12 21:51:18,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:51:18,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:51:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:21,988 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:51:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:21,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 21:51:21,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:21,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 21:51:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:21,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 21:51:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:21,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 21:51:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:21,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 21:51:21,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:21,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 21:51:21,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:21,994 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 21:51:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:21,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 21:51:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:21,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 21:51:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:21,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 21:51:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:21,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 21:51:21,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:21,998 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 21:51:21,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:21,998 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 21:51:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:21,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 21:51:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-09-12 21:51:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-09-12 21:51:22,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 21:51:22,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-09-12 21:51:22,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,003 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 21:51:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 21:51:22,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 21:51:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 21:51:22,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 21:51:22,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-09-12 21:51:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-09-12 21:51:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-09-12 21:51:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-09-12 21:51:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,010 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-09-12 21:51:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-09-12 21:51:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,012 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-09-12 21:51:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,012 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-09-12 21:51:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,013 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-09-12 21:51:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,014 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-09-12 21:51:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-09-12 21:51:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,016 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2024-09-12 21:51:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,016 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-09-12 21:51:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-09-12 21:51:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,018 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-09-12 21:51:22,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,019 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-09-12 21:51:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-09-12 21:51:22,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-09-12 21:51:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,021 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-09-12 21:51:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-09-12 21:51:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-09-12 21:51:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-09-12 21:51:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2024-09-12 21:51:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2024-09-12 21:51:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,026 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2024-09-12 21:51:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2024-09-12 21:51:22,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2024-09-12 21:51:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2024-09-12 21:51:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2024-09-12 21:51:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2024-09-12 21:51:22,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2024-09-12 21:51:22,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2024-09-12 21:51:22,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2024-09-12 21:51:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 461 [2024-09-12 21:51:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2024-09-12 21:51:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 475 [2024-09-12 21:51:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2024-09-12 21:51:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:22,038 INFO L134 CoverageAnalysis]: Checked inductivity of 14521 backedges. 1950 proven. 5491 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-09-12 21:51:22,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:51:22,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141813524] [2024-09-12 21:51:22,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141813524] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:51:22,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179402959] [2024-09-12 21:51:22,038 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:51:22,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:51:22,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:51:22,039 INFO L229 MonitoredProcess]: Starting monitored process 122 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:51:22,040 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Waiting until timeout for monitored process [2024-09-12 21:51:22,276 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 61 check-sat command(s) [2024-09-12 21:51:22,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:51:22,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 1188 conjuncts, 128 conjuncts are in the unsatisfiable core [2024-09-12 21:51:22,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:51:22,525 INFO L134 CoverageAnalysis]: Checked inductivity of 14521 backedges. 2011 proven. 5430 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-09-12 21:51:22,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:51:25,155 INFO L134 CoverageAnalysis]: Checked inductivity of 14521 backedges. 2011 proven. 5430 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2024-09-12 21:51:25,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179402959] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:51:25,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:51:25,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66, 66] total 69 [2024-09-12 21:51:25,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356403285] [2024-09-12 21:51:25,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:51:25,156 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2024-09-12 21:51:25,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:51:25,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2024-09-12 21:51:25,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2029, Invalid=2663, Unknown=0, NotChecked=0, Total=4692 [2024-09-12 21:51:25,157 INFO L87 Difference]: Start difference. First operand 496 states and 497 transitions. Second operand has 69 states, 69 states have (on average 2.8405797101449277) internal successors, (196), 67 states have internal predecessors, (196), 62 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-09-12 21:51:25,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:51:25,539 INFO L93 Difference]: Finished difference Result 509 states and 511 transitions. [2024-09-12 21:51:25,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-09-12 21:51:25,539 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 2.8405797101449277) internal successors, (196), 67 states have internal predecessors, (196), 62 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Word has length 493 [2024-09-12 21:51:25,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:51:25,542 INFO L225 Difference]: With dead ends: 509 [2024-09-12 21:51:25,542 INFO L226 Difference]: Without dead ends: 507 [2024-09-12 21:51:25,543 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1234 GetRequests, 1044 SyntacticMatches, 122 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4447 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=2035, Invalid=2795, Unknown=0, NotChecked=0, Total=4830 [2024-09-12 21:51:25,543 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 21:51:25,543 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 154 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 21:51:25,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-09-12 21:51:25,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 503. [2024-09-12 21:51:25,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 375 states have (on average 1.0053333333333334) internal successors, (377), 376 states have internal predecessors, (377), 64 states have call successors, (64), 64 states have call predecessors, (64), 63 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2024-09-12 21:51:25,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 504 transitions. [2024-09-12 21:51:25,586 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 504 transitions. Word has length 493 [2024-09-12 21:51:25,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:51:25,587 INFO L474 AbstractCegarLoop]: Abstraction has 503 states and 504 transitions. [2024-09-12 21:51:25,587 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 2.8405797101449277) internal successors, (196), 67 states have internal predecessors, (196), 62 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-09-12 21:51:25,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:51:25,587 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 504 transitions. [2024-09-12 21:51:25,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2024-09-12 21:51:25,588 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:51:25,588 INFO L216 NwaCegarLoop]: trace histogram [62, 62, 62, 61, 61, 61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:51:25,601 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Ended with exit code 0 [2024-09-12 21:51:25,788 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 122 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable122 [2024-09-12 21:51:25,789 INFO L399 AbstractCegarLoop]: === Iteration 124 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:51:25,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:51:25,789 INFO L85 PathProgramCache]: Analyzing trace with hash -552273684, now seen corresponding path program 121 times [2024-09-12 21:51:25,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:51:25,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741963865] [2024-09-12 21:51:25,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:51:25,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:51:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:51:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,399 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 21:51:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 21:51:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 21:51:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 21:51:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 21:51:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,403 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 21:51:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,404 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 21:51:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 21:51:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 21:51:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 21:51:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 21:51:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 21:51:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 21:51:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 21:51:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-09-12 21:51:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-09-12 21:51:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 21:51:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-09-12 21:51:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 21:51:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 21:51:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 21:51:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 21:51:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 21:51:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-09-12 21:51:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-09-12 21:51:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-09-12 21:51:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-09-12 21:51:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-09-12 21:51:31,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-09-12 21:51:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-09-12 21:51:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-09-12 21:51:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-09-12 21:51:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-09-12 21:51:31,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-09-12 21:51:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2024-09-12 21:51:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-09-12 21:51:31,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-09-12 21:51:31,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-09-12 21:51:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-09-12 21:51:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-09-12 21:51:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-09-12 21:51:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-09-12 21:51:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-09-12 21:51:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,434 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-09-12 21:51:31,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-09-12 21:51:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,436 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2024-09-12 21:51:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,437 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2024-09-12 21:51:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,438 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2024-09-12 21:51:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2024-09-12 21:51:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2024-09-12 21:51:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2024-09-12 21:51:31,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2024-09-12 21:51:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2024-09-12 21:51:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,443 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2024-09-12 21:51:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2024-09-12 21:51:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2024-09-12 21:51:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 461 [2024-09-12 21:51:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2024-09-12 21:51:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 475 [2024-09-12 21:51:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2024-09-12 21:51:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,449 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 489 [2024-09-12 21:51:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,451 INFO L134 CoverageAnalysis]: Checked inductivity of 14945 backedges. 5553 proven. 2072 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-09-12 21:51:31,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:51:31,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741963865] [2024-09-12 21:51:31,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741963865] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:51:31,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294914658] [2024-09-12 21:51:31,451 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 21:51:31,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:51:31,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:51:31,452 INFO L229 MonitoredProcess]: Starting monitored process 123 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:51:31,453 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (123)] Waiting until timeout for monitored process [2024-09-12 21:51:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:31,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 126 conjuncts are in the unsatisfiable core [2024-09-12 21:51:31,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:51:36,541 INFO L134 CoverageAnalysis]: Checked inductivity of 14945 backedges. 5734 proven. 1891 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-09-12 21:51:36,541 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:51:40,584 INFO L134 CoverageAnalysis]: Checked inductivity of 14945 backedges. 5734 proven. 1891 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-09-12 21:51:40,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294914658] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:51:40,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:51:40,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [127, 127, 127] total 191 [2024-09-12 21:51:40,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716424841] [2024-09-12 21:51:40,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:51:40,585 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2024-09-12 21:51:40,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:51:40,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2024-09-12 21:51:40,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8132, Invalid=28158, Unknown=0, NotChecked=0, Total=36290 [2024-09-12 21:51:40,588 INFO L87 Difference]: Start difference. First operand 503 states and 504 transitions. Second operand has 191 states, 191 states have (on average 1.6910994764397906) internal successors, (323), 191 states have internal predecessors, (323), 125 states have call successors, (126), 2 states have call predecessors, (126), 1 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2024-09-12 21:51:41,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:51:41,558 INFO L93 Difference]: Finished difference Result 698 states and 761 transitions. [2024-09-12 21:51:41,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2024-09-12 21:51:41,559 INFO L78 Accepts]: Start accepts. Automaton has has 191 states, 191 states have (on average 1.6910994764397906) internal successors, (323), 191 states have internal predecessors, (323), 125 states have call successors, (126), 2 states have call predecessors, (126), 1 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) Word has length 500 [2024-09-12 21:51:41,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:51:41,563 INFO L225 Difference]: With dead ends: 698 [2024-09-12 21:51:41,563 INFO L226 Difference]: Without dead ends: 504 [2024-09-12 21:51:41,565 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1250 GetRequests, 938 SyntacticMatches, 123 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23851 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=8132, Invalid=28158, Unknown=0, NotChecked=0, Total=36290 [2024-09-12 21:51:41,565 INFO L434 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 1609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 21:51:41,565 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1150 Invalid, 1609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1609 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 21:51:41,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-09-12 21:51:41,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2024-09-12 21:51:41,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 376 states have (on average 1.0053191489361701) internal successors, (378), 377 states have internal predecessors, (378), 64 states have call successors, (64), 64 states have call predecessors, (64), 63 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2024-09-12 21:51:41,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 505 transitions. [2024-09-12 21:51:41,610 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 505 transitions. Word has length 500 [2024-09-12 21:51:41,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:51:41,610 INFO L474 AbstractCegarLoop]: Abstraction has 504 states and 505 transitions. [2024-09-12 21:51:41,610 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 191 states have (on average 1.6910994764397906) internal successors, (323), 191 states have internal predecessors, (323), 125 states have call successors, (126), 2 states have call predecessors, (126), 1 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2024-09-12 21:51:41,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:51:41,611 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 505 transitions. [2024-09-12 21:51:41,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2024-09-12 21:51:41,612 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:51:41,612 INFO L216 NwaCegarLoop]: trace histogram [62, 62, 62, 62, 61, 61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:51:41,625 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (123)] Ended with exit code 0 [2024-09-12 21:51:41,812 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123,123 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:51:41,813 INFO L399 AbstractCegarLoop]: === Iteration 125 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:51:41,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:51:41,813 INFO L85 PathProgramCache]: Analyzing trace with hash -472615432, now seen corresponding path program 122 times [2024-09-12 21:51:41,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:51:41,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656198495] [2024-09-12 21:51:41,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:51:41,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:51:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:44,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:51:44,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:44,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 21:51:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:44,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 21:51:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:44,994 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 21:51:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:44,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 21:51:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:44,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 21:51:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:44,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 21:51:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:44,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 21:51:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:44,998 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 21:51:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:44,998 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 21:51:44,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:44,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 21:51:44,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 21:51:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-09-12 21:51:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 21:51:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 21:51:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,003 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 21:51:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 21:51:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 21:51:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-09-12 21:51:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 21:51:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 21:51:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-09-12 21:51:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-09-12 21:51:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-09-12 21:51:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,010 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-09-12 21:51:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-09-12 21:51:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-09-12 21:51:45,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,012 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 21:51:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,013 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-09-12 21:51:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,014 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-09-12 21:51:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-09-12 21:51:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,016 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-09-12 21:51:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-09-12 21:51:45,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-09-12 21:51:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,018 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-09-12 21:51:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,019 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-09-12 21:51:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2024-09-12 21:51:45,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,021 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-09-12 21:51:45,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,021 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-09-12 21:51:45,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-09-12 21:51:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-09-12 21:51:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-09-12 21:51:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-09-12 21:51:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-09-12 21:51:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,026 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2024-09-12 21:51:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-09-12 21:51:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2024-09-12 21:51:45,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2024-09-12 21:51:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2024-09-12 21:51:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2024-09-12 21:51:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,044 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2024-09-12 21:51:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2024-09-12 21:51:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2024-09-12 21:51:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,046 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2024-09-12 21:51:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2024-09-12 21:51:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,048 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2024-09-12 21:51:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,048 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2024-09-12 21:51:45,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2024-09-12 21:51:45,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,050 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2024-09-12 21:51:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2024-09-12 21:51:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2024-09-12 21:51:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2024-09-12 21:51:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:45,054 INFO L134 CoverageAnalysis]: Checked inductivity of 15007 backedges. 2013 proven. 5674 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-09-12 21:51:45,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:51:45,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656198495] [2024-09-12 21:51:45,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656198495] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:51:45,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368752664] [2024-09-12 21:51:45,054 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:51:45,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:51:45,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:51:45,055 INFO L229 MonitoredProcess]: Starting monitored process 124 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:51:45,056 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (124)] Waiting until timeout for monitored process [2024-09-12 21:51:45,212 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:51:45,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:51:45,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 1207 conjuncts, 127 conjuncts are in the unsatisfiable core [2024-09-12 21:51:45,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:51:45,466 INFO L134 CoverageAnalysis]: Checked inductivity of 15007 backedges. 2075 proven. 5612 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-09-12 21:51:45,467 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:51:48,210 INFO L134 CoverageAnalysis]: Checked inductivity of 15007 backedges. 2075 proven. 5612 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2024-09-12 21:51:48,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368752664] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:51:48,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:51:48,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67, 67] total 70 [2024-09-12 21:51:48,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882465074] [2024-09-12 21:51:48,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:51:48,211 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2024-09-12 21:51:48,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:51:48,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2024-09-12 21:51:48,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2093, Invalid=2737, Unknown=0, NotChecked=0, Total=4830 [2024-09-12 21:51:48,212 INFO L87 Difference]: Start difference. First operand 504 states and 505 transitions. Second operand has 70 states, 70 states have (on average 2.842857142857143) internal successors, (199), 68 states have internal predecessors, (199), 63 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-09-12 21:51:48,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:51:48,541 INFO L93 Difference]: Finished difference Result 517 states and 519 transitions. [2024-09-12 21:51:48,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-09-12 21:51:48,541 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 2.842857142857143) internal successors, (199), 68 states have internal predecessors, (199), 63 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Word has length 501 [2024-09-12 21:51:48,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:51:48,544 INFO L225 Difference]: With dead ends: 517 [2024-09-12 21:51:48,544 INFO L226 Difference]: Without dead ends: 515 [2024-09-12 21:51:48,545 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1254 GetRequests, 1059 SyntacticMatches, 126 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4708 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=2099, Invalid=2871, Unknown=0, NotChecked=0, Total=4970 [2024-09-12 21:51:48,545 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 21:51:48,545 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 134 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 21:51:48,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2024-09-12 21:51:48,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 511. [2024-09-12 21:51:48,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 381 states have (on average 1.005249343832021) internal successors, (383), 382 states have internal predecessors, (383), 65 states have call successors, (65), 65 states have call predecessors, (65), 64 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-09-12 21:51:48,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 512 transitions. [2024-09-12 21:51:48,600 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 512 transitions. Word has length 501 [2024-09-12 21:51:48,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:51:48,601 INFO L474 AbstractCegarLoop]: Abstraction has 511 states and 512 transitions. [2024-09-12 21:51:48,601 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 2.842857142857143) internal successors, (199), 68 states have internal predecessors, (199), 63 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-09-12 21:51:48,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:51:48,601 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 512 transitions. [2024-09-12 21:51:48,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2024-09-12 21:51:48,602 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:51:48,602 INFO L216 NwaCegarLoop]: trace histogram [63, 63, 63, 62, 62, 62, 62, 62, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:51:48,615 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (124)] Ended with exit code 0 [2024-09-12 21:51:48,803 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 124 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable124 [2024-09-12 21:51:48,803 INFO L399 AbstractCegarLoop]: === Iteration 126 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:51:48,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:51:48,803 INFO L85 PathProgramCache]: Analyzing trace with hash -434843605, now seen corresponding path program 123 times [2024-09-12 21:51:48,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:51:48,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996919980] [2024-09-12 21:51:48,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:51:48,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:51:48,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:51:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 21:51:54,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 21:51:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 21:51:54,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 21:51:54,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 21:51:54,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,608 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 21:51:54,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 21:51:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,610 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 21:51:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 21:51:54,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,612 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 21:51:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,614 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 21:51:54,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-09-12 21:51:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 21:51:54,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 21:51:54,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 21:51:54,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 21:51:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 21:51:54,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-09-12 21:51:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 21:51:54,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 21:51:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-09-12 21:51:54,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-09-12 21:51:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-09-12 21:51:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-09-12 21:51:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-09-12 21:51:54,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-09-12 21:51:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 21:51:54,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-09-12 21:51:54,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-09-12 21:51:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-09-12 21:51:54,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-09-12 21:51:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-09-12 21:51:54,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-09-12 21:51:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-09-12 21:51:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-09-12 21:51:54,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2024-09-12 21:51:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-09-12 21:51:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-09-12 21:51:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-09-12 21:51:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-09-12 21:51:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-09-12 21:51:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-09-12 21:51:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-09-12 21:51:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2024-09-12 21:51:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-09-12 21:51:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2024-09-12 21:51:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2024-09-12 21:51:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2024-09-12 21:51:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2024-09-12 21:51:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,662 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2024-09-12 21:51:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2024-09-12 21:51:54,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,664 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2024-09-12 21:51:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2024-09-12 21:51:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,667 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2024-09-12 21:51:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2024-09-12 21:51:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2024-09-12 21:51:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,671 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2024-09-12 21:51:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,672 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2024-09-12 21:51:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2024-09-12 21:51:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2024-09-12 21:51:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2024-09-12 21:51:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 497 [2024-09-12 21:51:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:51:54,679 INFO L134 CoverageAnalysis]: Checked inductivity of 15438 backedges. 5737 proven. 2137 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2024-09-12 21:51:54,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:51:54,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996919980] [2024-09-12 21:51:54,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996919980] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:51:54,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817635340] [2024-09-12 21:51:54,679 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:51:54,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:51:54,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:51:54,680 INFO L229 MonitoredProcess]: Starting monitored process 125 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:51:54,681 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (125)] Waiting until timeout for monitored process [2024-09-12 21:51:54,949 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 63 check-sat command(s) [2024-09-12 21:51:54,949 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:51:54,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 1221 conjuncts, 128 conjuncts are in the unsatisfiable core [2024-09-12 21:51:54,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:52:00,037 INFO L134 CoverageAnalysis]: Checked inductivity of 15438 backedges. 5921 proven. 1953 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2024-09-12 21:52:00,037 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:52:04,199 INFO L134 CoverageAnalysis]: Checked inductivity of 15438 backedges. 5921 proven. 1953 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2024-09-12 21:52:04,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817635340] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:52:04,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:52:04,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129, 129] total 194 [2024-09-12 21:52:04,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105836459] [2024-09-12 21:52:04,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:52:04,200 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2024-09-12 21:52:04,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:52:04,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2024-09-12 21:52:04,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8389, Invalid=29053, Unknown=0, NotChecked=0, Total=37442 [2024-09-12 21:52:04,203 INFO L87 Difference]: Start difference. First operand 511 states and 512 transitions. Second operand has 194 states, 194 states have (on average 1.690721649484536) internal successors, (328), 194 states have internal predecessors, (328), 127 states have call successors, (128), 2 states have call predecessors, (128), 1 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-09-12 21:52:05,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:52:05,383 INFO L93 Difference]: Finished difference Result 709 states and 773 transitions. [2024-09-12 21:52:05,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2024-09-12 21:52:05,384 INFO L78 Accepts]: Start accepts. Automaton has has 194 states, 194 states have (on average 1.690721649484536) internal successors, (328), 194 states have internal predecessors, (328), 127 states have call successors, (128), 2 states have call predecessors, (128), 1 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) Word has length 508 [2024-09-12 21:52:05,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:52:05,387 INFO L225 Difference]: With dead ends: 709 [2024-09-12 21:52:05,387 INFO L226 Difference]: Without dead ends: 512 [2024-09-12 21:52:05,388 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1270 GetRequests, 953 SyntacticMatches, 125 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24614 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=8389, Invalid=29053, Unknown=0, NotChecked=0, Total=37442 [2024-09-12 21:52:05,388 INFO L434 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 2019 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 2019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 21:52:05,389 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1216 Invalid, 2019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2019 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 21:52:05,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-09-12 21:52:05,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 512. [2024-09-12 21:52:05,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 382 states have (on average 1.0052356020942408) internal successors, (384), 383 states have internal predecessors, (384), 65 states have call successors, (65), 65 states have call predecessors, (65), 64 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2024-09-12 21:52:05,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 513 transitions. [2024-09-12 21:52:05,434 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 513 transitions. Word has length 508 [2024-09-12 21:52:05,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:52:05,434 INFO L474 AbstractCegarLoop]: Abstraction has 512 states and 513 transitions. [2024-09-12 21:52:05,434 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 194 states, 194 states have (on average 1.690721649484536) internal successors, (328), 194 states have internal predecessors, (328), 127 states have call successors, (128), 2 states have call predecessors, (128), 1 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-09-12 21:52:05,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:52:05,435 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 513 transitions. [2024-09-12 21:52:05,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2024-09-12 21:52:05,436 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:52:05,436 INFO L216 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 62, 62, 62, 62, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:52:05,449 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (125)] Ended with exit code 0 [2024-09-12 21:52:05,636 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 125 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable125 [2024-09-12 21:52:05,637 INFO L399 AbstractCegarLoop]: === Iteration 127 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:52:05,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:52:05,637 INFO L85 PathProgramCache]: Analyzing trace with hash 423395639, now seen corresponding path program 124 times [2024-09-12 21:52:05,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:52:05,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558655465] [2024-09-12 21:52:05,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:52:05,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:52:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:52:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 21:52:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 21:52:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 21:52:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 21:52:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 21:52:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 21:52:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,967 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 21:52:08,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 21:52:08,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 21:52:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 21:52:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,970 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 21:52:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,971 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-09-12 21:52:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,972 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 21:52:08,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,972 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 21:52:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,973 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 21:52:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,974 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-09-12 21:52:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,975 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 21:52:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-09-12 21:52:08,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-09-12 21:52:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 21:52:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,978 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 21:52:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 21:52:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-09-12 21:52:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-09-12 21:52:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-09-12 21:52:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-09-12 21:52:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 21:52:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-09-12 21:52:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,985 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-09-12 21:52:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,985 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-09-12 21:52:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 21:52:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,987 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2024-09-12 21:52:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,988 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-09-12 21:52:08,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,988 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2024-09-12 21:52:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-09-12 21:52:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2024-09-12 21:52:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2024-09-12 21:52:08,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-09-12 21:52:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-09-12 21:52:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-09-12 21:52:08,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,994 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-09-12 21:52:08,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-09-12 21:52:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2024-09-12 21:52:08,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2024-09-12 21:52:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2024-09-12 21:52:08,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,998 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2024-09-12 21:52:08,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:08,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2024-09-12 21:52:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:09,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2024-09-12 21:52:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:09,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2024-09-12 21:52:09,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:09,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2024-09-12 21:52:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:09,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2024-09-12 21:52:09,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:09,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2024-09-12 21:52:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:09,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2024-09-12 21:52:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:09,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2024-09-12 21:52:09,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:09,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2024-09-12 21:52:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:09,010 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2024-09-12 21:52:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:09,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2024-09-12 21:52:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:09,012 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2024-09-12 21:52:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:09,014 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2024-09-12 21:52:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:09,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2024-09-12 21:52:09,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:09,016 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2024-09-12 21:52:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:09,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2024-09-12 21:52:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:09,020 INFO L134 CoverageAnalysis]: Checked inductivity of 15501 backedges. 2077 proven. 5860 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2024-09-12 21:52:09,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:52:09,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558655465] [2024-09-12 21:52:09,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558655465] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:52:09,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538250171] [2024-09-12 21:52:09,020 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:52:09,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:52:09,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:52:09,023 INFO L229 MonitoredProcess]: Starting monitored process 126 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:52:09,023 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (126)] Waiting until timeout for monitored process [2024-09-12 21:52:09,192 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:52:09,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:52:09,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 1226 conjuncts, 132 conjuncts are in the unsatisfiable core [2024-09-12 21:52:09,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:52:09,452 INFO L134 CoverageAnalysis]: Checked inductivity of 15501 backedges. 2140 proven. 5797 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2024-09-12 21:52:09,452 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:52:12,274 INFO L134 CoverageAnalysis]: Checked inductivity of 15501 backedges. 2140 proven. 5797 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2024-09-12 21:52:12,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538250171] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:52:12,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:52:12,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 68, 68] total 71 [2024-09-12 21:52:12,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759047328] [2024-09-12 21:52:12,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:52:12,275 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2024-09-12 21:52:12,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:52:12,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2024-09-12 21:52:12,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2158, Invalid=2812, Unknown=0, NotChecked=0, Total=4970 [2024-09-12 21:52:12,276 INFO L87 Difference]: Start difference. First operand 512 states and 513 transitions. Second operand has 71 states, 71 states have (on average 2.8450704225352115) internal successors, (202), 69 states have internal predecessors, (202), 64 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-09-12 21:52:12,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:52:12,668 INFO L93 Difference]: Finished difference Result 525 states and 527 transitions. [2024-09-12 21:52:12,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-09-12 21:52:12,668 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 2.8450704225352115) internal successors, (202), 69 states have internal predecessors, (202), 64 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Word has length 509 [2024-09-12 21:52:12,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:52:12,671 INFO L225 Difference]: With dead ends: 525 [2024-09-12 21:52:12,671 INFO L226 Difference]: Without dead ends: 523 [2024-09-12 21:52:12,672 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1274 GetRequests, 1078 SyntacticMatches, 126 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4719 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=2164, Invalid=2948, Unknown=0, NotChecked=0, Total=5112 [2024-09-12 21:52:12,672 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 21:52:12,672 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 191 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 21:52:12,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-09-12 21:52:12,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 519. [2024-09-12 21:52:12,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 387 states have (on average 1.0051679586563307) internal successors, (389), 388 states have internal predecessors, (389), 66 states have call successors, (66), 66 states have call predecessors, (66), 65 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2024-09-12 21:52:12,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 520 transitions. [2024-09-12 21:52:12,718 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 520 transitions. Word has length 509 [2024-09-12 21:52:12,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:52:12,718 INFO L474 AbstractCegarLoop]: Abstraction has 519 states and 520 transitions. [2024-09-12 21:52:12,718 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 2.8450704225352115) internal successors, (202), 69 states have internal predecessors, (202), 64 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-09-12 21:52:12,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:52:12,719 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 520 transitions. [2024-09-12 21:52:12,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2024-09-12 21:52:12,720 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:52:12,720 INFO L216 NwaCegarLoop]: trace histogram [64, 64, 64, 63, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:52:12,734 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (126)] Forceful destruction successful, exit code 0 [2024-09-12 21:52:12,921 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 126 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable126 [2024-09-12 21:52:12,921 INFO L399 AbstractCegarLoop]: === Iteration 128 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:52:12,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:52:12,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1996197876, now seen corresponding path program 125 times [2024-09-12 21:52:12,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:52:12,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150127274] [2024-09-12 21:52:12,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:52:12,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:52:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,947 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:52:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 21:52:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,949 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 21:52:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,950 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 21:52:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,951 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 21:52:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,951 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 21:52:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,952 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 21:52:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,953 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 21:52:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,954 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 21:52:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,955 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 21:52:18,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,955 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 21:52:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,956 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 21:52:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-09-12 21:52:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,958 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 21:52:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,959 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 21:52:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 21:52:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-09-12 21:52:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,961 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 21:52:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-09-12 21:52:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-09-12 21:52:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 21:52:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 21:52:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 21:52:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-09-12 21:52:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,967 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-09-12 21:52:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-09-12 21:52:18,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-09-12 21:52:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 21:52:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,970 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-09-12 21:52:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,971 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-09-12 21:52:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,972 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-09-12 21:52:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,973 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 21:52:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,974 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2024-09-12 21:52:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,974 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-09-12 21:52:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,975 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2024-09-12 21:52:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-09-12 21:52:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2024-09-12 21:52:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,978 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2024-09-12 21:52:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-09-12 21:52:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-09-12 21:52:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-09-12 21:52:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-09-12 21:52:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-09-12 21:52:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,983 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2024-09-12 21:52:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2024-09-12 21:52:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2024-09-12 21:52:18,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,985 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2024-09-12 21:52:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2024-09-12 21:52:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,987 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2024-09-12 21:52:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,988 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2024-09-12 21:52:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2024-09-12 21:52:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2024-09-12 21:52:18,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2024-09-12 21:52:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2024-09-12 21:52:18,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2024-09-12 21:52:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2024-09-12 21:52:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,994 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2024-09-12 21:52:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2024-09-12 21:52:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2024-09-12 21:52:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2024-09-12 21:52:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,998 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2024-09-12 21:52:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,998 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2024-09-12 21:52:18,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:18,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2024-09-12 21:52:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:19,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2024-09-12 21:52:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:19,002 INFO L134 CoverageAnalysis]: Checked inductivity of 15939 backedges. 5924 proven. 2203 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-09-12 21:52:19,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:52:19,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150127274] [2024-09-12 21:52:19,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150127274] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:52:19,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688740542] [2024-09-12 21:52:19,003 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:52:19,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:52:19,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:52:19,004 INFO L229 MonitoredProcess]: Starting monitored process 127 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:52:19,005 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (127)] Waiting until timeout for monitored process [2024-09-12 21:52:19,271 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 64 check-sat command(s) [2024-09-12 21:52:19,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:52:19,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 130 conjuncts are in the unsatisfiable core [2024-09-12 21:52:19,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:52:24,555 INFO L134 CoverageAnalysis]: Checked inductivity of 15939 backedges. 6111 proven. 2016 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-09-12 21:52:24,555 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:52:29,032 INFO L134 CoverageAnalysis]: Checked inductivity of 15939 backedges. 6111 proven. 2016 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-09-12 21:52:29,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688740542] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:52:29,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:52:29,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [131, 131, 131] total 197 [2024-09-12 21:52:29,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874663134] [2024-09-12 21:52:29,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:52:29,033 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 197 states [2024-09-12 21:52:29,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:52:29,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 197 interpolants. [2024-09-12 21:52:29,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8650, Invalid=29962, Unknown=0, NotChecked=0, Total=38612 [2024-09-12 21:52:29,037 INFO L87 Difference]: Start difference. First operand 519 states and 520 transitions. Second operand has 197 states, 197 states have (on average 1.6903553299492386) internal successors, (333), 197 states have internal predecessors, (333), 129 states have call successors, (130), 2 states have call predecessors, (130), 1 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) [2024-09-12 21:52:30,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:52:30,087 INFO L93 Difference]: Finished difference Result 720 states and 785 transitions. [2024-09-12 21:52:30,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2024-09-12 21:52:30,087 INFO L78 Accepts]: Start accepts. Automaton has has 197 states, 197 states have (on average 1.6903553299492386) internal successors, (333), 197 states have internal predecessors, (333), 129 states have call successors, (130), 2 states have call predecessors, (130), 1 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) Word has length 516 [2024-09-12 21:52:30,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:52:30,090 INFO L225 Difference]: With dead ends: 720 [2024-09-12 21:52:30,091 INFO L226 Difference]: Without dead ends: 520 [2024-09-12 21:52:30,092 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1290 GetRequests, 968 SyntacticMatches, 127 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25389 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=8650, Invalid=29962, Unknown=0, NotChecked=0, Total=38612 [2024-09-12 21:52:30,092 INFO L434 NwaCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 1841 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 1841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 21:52:30,092 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 631 Invalid, 1841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1841 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 21:52:30,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-09-12 21:52:30,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2024-09-12 21:52:30,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 388 states have (on average 1.0051546391752577) internal successors, (390), 389 states have internal predecessors, (390), 66 states have call successors, (66), 66 states have call predecessors, (66), 65 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2024-09-12 21:52:30,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 521 transitions. [2024-09-12 21:52:30,146 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 521 transitions. Word has length 516 [2024-09-12 21:52:30,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:52:30,146 INFO L474 AbstractCegarLoop]: Abstraction has 520 states and 521 transitions. [2024-09-12 21:52:30,146 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 197 states, 197 states have (on average 1.6903553299492386) internal successors, (333), 197 states have internal predecessors, (333), 129 states have call successors, (130), 2 states have call predecessors, (130), 1 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) [2024-09-12 21:52:30,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:52:30,147 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 521 transitions. [2024-09-12 21:52:30,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2024-09-12 21:52:30,149 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:52:30,149 INFO L216 NwaCegarLoop]: trace histogram [64, 64, 64, 64, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:52:30,162 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (127)] Ended with exit code 0 [2024-09-12 21:52:30,349 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127,127 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:52:30,349 INFO L399 AbstractCegarLoop]: === Iteration 129 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:52:30,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:52:30,350 INFO L85 PathProgramCache]: Analyzing trace with hash -383757032, now seen corresponding path program 126 times [2024-09-12 21:52:30,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:52:30,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566011823] [2024-09-12 21:52:30,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:52:30,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:52:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,772 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:52:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 21:52:33,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 21:52:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,774 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 21:52:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 21:52:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 21:52:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 21:52:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 21:52:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,778 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 21:52:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 21:52:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-09-12 21:52:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 21:52:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 21:52:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-09-12 21:52:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 21:52:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 21:52:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,784 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-09-12 21:52:33,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-12 21:52:33,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-09-12 21:52:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-09-12 21:52:33,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 21:52:33,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,788 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-09-12 21:52:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,788 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 21:52:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-09-12 21:52:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 21:52:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 21:52:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-09-12 21:52:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-09-12 21:52:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-09-12 21:52:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,794 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2024-09-12 21:52:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-09-12 21:52:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-12 21:52:33,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-09-12 21:52:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-09-12 21:52:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-09-12 21:52:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-09-12 21:52:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-09-12 21:52:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2024-09-12 21:52:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-09-12 21:52:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2024-09-12 21:52:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-09-12 21:52:33,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-09-12 21:52:33,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-09-12 21:52:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-09-12 21:52:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-09-12 21:52:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-09-12 21:52:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2024-09-12 21:52:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2024-09-12 21:52:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2024-09-12 21:52:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2024-09-12 21:52:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2024-09-12 21:52:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2024-09-12 21:52:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2024-09-12 21:52:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2024-09-12 21:52:33,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2024-09-12 21:52:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2024-09-12 21:52:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2024-09-12 21:52:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2024-09-12 21:52:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2024-09-12 21:52:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2024-09-12 21:52:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2024-09-12 21:52:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2024-09-12 21:52:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2024-09-12 21:52:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2024-09-12 21:52:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:33,823 INFO L134 CoverageAnalysis]: Checked inductivity of 16003 backedges. 2142 proven. 6049 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-09-12 21:52:33,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:52:33,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566011823] [2024-09-12 21:52:33,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566011823] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:52:33,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827427935] [2024-09-12 21:52:33,824 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:52:33,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:52:33,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:52:33,825 INFO L229 MonitoredProcess]: Starting monitored process 128 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:52:33,826 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (128)] Waiting until timeout for monitored process [2024-09-12 21:52:34,077 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2024-09-12 21:52:34,078 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:52:34,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 1245 conjuncts, 134 conjuncts are in the unsatisfiable core [2024-09-12 21:52:34,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:52:34,381 INFO L134 CoverageAnalysis]: Checked inductivity of 16003 backedges. 2206 proven. 5985 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-09-12 21:52:34,381 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:52:37,279 INFO L134 CoverageAnalysis]: Checked inductivity of 16003 backedges. 2206 proven. 5985 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-09-12 21:52:37,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827427935] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:52:37,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:52:37,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69, 69] total 72 [2024-09-12 21:52:37,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405014481] [2024-09-12 21:52:37,280 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:52:37,280 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2024-09-12 21:52:37,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:52:37,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2024-09-12 21:52:37,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2224, Invalid=2888, Unknown=0, NotChecked=0, Total=5112 [2024-09-12 21:52:37,282 INFO L87 Difference]: Start difference. First operand 520 states and 521 transitions. Second operand has 72 states, 72 states have (on average 2.8472222222222223) internal successors, (205), 70 states have internal predecessors, (205), 65 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-09-12 21:52:37,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:52:37,662 INFO L93 Difference]: Finished difference Result 533 states and 535 transitions. [2024-09-12 21:52:37,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-09-12 21:52:37,663 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 2.8472222222222223) internal successors, (205), 70 states have internal predecessors, (205), 65 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 517 [2024-09-12 21:52:37,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:52:37,666 INFO L225 Difference]: With dead ends: 533 [2024-09-12 21:52:37,666 INFO L226 Difference]: Without dead ends: 531 [2024-09-12 21:52:37,666 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1294 GetRequests, 1095 SyntacticMatches, 128 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4858 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=2230, Invalid=3026, Unknown=0, NotChecked=0, Total=5256 [2024-09-12 21:52:37,666 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 21:52:37,667 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 139 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 21:52:37,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-09-12 21:52:37,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 527. [2024-09-12 21:52:37,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 393 states have (on average 1.005089058524173) internal successors, (395), 394 states have internal predecessors, (395), 67 states have call successors, (67), 67 states have call predecessors, (67), 66 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-09-12 21:52:37,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 528 transitions. [2024-09-12 21:52:37,727 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 528 transitions. Word has length 517 [2024-09-12 21:52:37,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:52:37,727 INFO L474 AbstractCegarLoop]: Abstraction has 527 states and 528 transitions. [2024-09-12 21:52:37,727 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 2.8472222222222223) internal successors, (205), 70 states have internal predecessors, (205), 65 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-09-12 21:52:37,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:52:37,728 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 528 transitions. [2024-09-12 21:52:37,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2024-09-12 21:52:37,729 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:52:37,729 INFO L216 NwaCegarLoop]: trace histogram [65, 65, 65, 64, 64, 64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:52:37,742 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (128)] Forceful destruction successful, exit code 0 [2024-09-12 21:52:37,929 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128,128 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:52:37,930 INFO L399 AbstractCegarLoop]: === Iteration 130 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:52:37,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:52:37,930 INFO L85 PathProgramCache]: Analyzing trace with hash -2002408181, now seen corresponding path program 127 times [2024-09-12 21:52:37,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:52:37,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197189228] [2024-09-12 21:52:37,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:52:37,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:52:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:52:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 21:52:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 21:52:44,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 21:52:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,169 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 21:52:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 21:52:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,171 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 21:52:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 21:52:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 21:52:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 21:52:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,174 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-09-12 21:52:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,175 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 21:52:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,176 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 21:52:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,176 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-09-12 21:52:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 21:52:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,179 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 21:52:44,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,180 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-09-12 21:52:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,181 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-12 21:52:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,182 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-09-12 21:52:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,183 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-09-12 21:52:44,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,185 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 21:52:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,186 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-09-12 21:52:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,187 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 21:52:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-09-12 21:52:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,189 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 21:52:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 21:52:44,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,192 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-09-12 21:52:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-09-12 21:52:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-09-12 21:52:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,195 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2024-09-12 21:52:44,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-09-12 21:52:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-12 21:52:44,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,197 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-09-12 21:52:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-09-12 21:52:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-09-12 21:52:44,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-09-12 21:52:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,201 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-09-12 21:52:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,202 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2024-09-12 21:52:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,202 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-09-12 21:52:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,203 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2024-09-12 21:52:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,204 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-09-12 21:52:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,205 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-09-12 21:52:44,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,206 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-09-12 21:52:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,207 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-09-12 21:52:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,207 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-09-12 21:52:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,208 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-09-12 21:52:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,209 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2024-09-12 21:52:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,210 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2024-09-12 21:52:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2024-09-12 21:52:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,212 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2024-09-12 21:52:44,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2024-09-12 21:52:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,214 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2024-09-12 21:52:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,214 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2024-09-12 21:52:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,215 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2024-09-12 21:52:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,216 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2024-09-12 21:52:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,217 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2024-09-12 21:52:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2024-09-12 21:52:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,219 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2024-09-12 21:52:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,220 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2024-09-12 21:52:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2024-09-12 21:52:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2024-09-12 21:52:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2024-09-12 21:52:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2024-09-12 21:52:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,224 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2024-09-12 21:52:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2024-09-12 21:52:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,227 INFO L134 CoverageAnalysis]: Checked inductivity of 16448 backedges. 6114 proven. 2270 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2024-09-12 21:52:44,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:52:44,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197189228] [2024-09-12 21:52:44,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197189228] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:52:44,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146005544] [2024-09-12 21:52:44,227 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 21:52:44,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:52:44,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:52:44,229 INFO L229 MonitoredProcess]: Starting monitored process 129 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:52:44,230 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (129)] Waiting until timeout for monitored process [2024-09-12 21:52:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:44,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 1259 conjuncts, 132 conjuncts are in the unsatisfiable core [2024-09-12 21:52:44,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:52:49,795 INFO L134 CoverageAnalysis]: Checked inductivity of 16448 backedges. 6304 proven. 2080 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2024-09-12 21:52:49,796 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:52:54,216 INFO L134 CoverageAnalysis]: Checked inductivity of 16448 backedges. 6304 proven. 2080 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2024-09-12 21:52:54,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146005544] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:52:54,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:52:54,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [133, 133, 133] total 200 [2024-09-12 21:52:54,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200459730] [2024-09-12 21:52:54,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:52:54,219 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 200 states [2024-09-12 21:52:54,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:52:54,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 200 interpolants. [2024-09-12 21:52:54,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8915, Invalid=30885, Unknown=0, NotChecked=0, Total=39800 [2024-09-12 21:52:54,224 INFO L87 Difference]: Start difference. First operand 527 states and 528 transitions. Second operand has 200 states, 200 states have (on average 1.69) internal successors, (338), 200 states have internal predecessors, (338), 131 states have call successors, (132), 2 states have call predecessors, (132), 1 states have return successors, (130), 130 states have call predecessors, (130), 130 states have call successors, (130) [2024-09-12 21:52:55,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:52:55,778 INFO L93 Difference]: Finished difference Result 731 states and 797 transitions. [2024-09-12 21:52:55,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2024-09-12 21:52:55,778 INFO L78 Accepts]: Start accepts. Automaton has has 200 states, 200 states have (on average 1.69) internal successors, (338), 200 states have internal predecessors, (338), 131 states have call successors, (132), 2 states have call predecessors, (132), 1 states have return successors, (130), 130 states have call predecessors, (130), 130 states have call successors, (130) Word has length 524 [2024-09-12 21:52:55,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:52:55,782 INFO L225 Difference]: With dead ends: 731 [2024-09-12 21:52:55,782 INFO L226 Difference]: Without dead ends: 528 [2024-09-12 21:52:55,783 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1310 GetRequests, 983 SyntacticMatches, 129 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26176 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=8915, Invalid=30885, Unknown=0, NotChecked=0, Total=39800 [2024-09-12 21:52:55,783 INFO L434 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 2599 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1894 SdHoareTripleChecker+Invalid, 2599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 21:52:55,783 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1894 Invalid, 2599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2599 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 21:52:55,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-09-12 21:52:55,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2024-09-12 21:52:55,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 394 states have (on average 1.0050761421319796) internal successors, (396), 395 states have internal predecessors, (396), 67 states have call successors, (67), 67 states have call predecessors, (67), 66 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-09-12 21:52:55,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 529 transitions. [2024-09-12 21:52:55,850 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 529 transitions. Word has length 524 [2024-09-12 21:52:55,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:52:55,850 INFO L474 AbstractCegarLoop]: Abstraction has 528 states and 529 transitions. [2024-09-12 21:52:55,850 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 200 states, 200 states have (on average 1.69) internal successors, (338), 200 states have internal predecessors, (338), 131 states have call successors, (132), 2 states have call predecessors, (132), 1 states have return successors, (130), 130 states have call predecessors, (130), 130 states have call successors, (130) [2024-09-12 21:52:55,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:52:55,850 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 529 transitions. [2024-09-12 21:52:55,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2024-09-12 21:52:55,852 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:52:55,852 INFO L216 NwaCegarLoop]: trace histogram [65, 65, 65, 65, 64, 64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:52:55,865 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (129)] Ended with exit code 0 [2024-09-12 21:52:56,052 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 129 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable129 [2024-09-12 21:52:56,052 INFO L399 AbstractCegarLoop]: === Iteration 131 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:52:56,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:52:56,053 INFO L85 PathProgramCache]: Analyzing trace with hash -935213545, now seen corresponding path program 128 times [2024-09-12 21:52:56,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:52:56,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531726295] [2024-09-12 21:52:56,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:52:56,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:52:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:52:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 21:52:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,578 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 21:52:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 21:52:59,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-09-12 21:52:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 21:52:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 21:52:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,582 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 21:52:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,582 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 21:52:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,583 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 21:52:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-09-12 21:52:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 21:52:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-09-12 21:52:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,586 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 21:52:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-09-12 21:52:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 21:52:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-09-12 21:52:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 21:52:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-09-12 21:52:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-09-12 21:52:59,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-09-12 21:52:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-09-12 21:52:59,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-09-12 21:52:59,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-09-12 21:52:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-09-12 21:52:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-12 21:52:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-09-12 21:52:59,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-09-12 21:52:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-09-12 21:52:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 21:52:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2024-09-12 21:52:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-09-12 21:52:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2024-09-12 21:52:59,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2024-09-12 21:52:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2024-09-12 21:52:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2024-09-12 21:52:59,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2024-09-12 21:52:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-09-12 21:52:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-09-12 21:52:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-09-12 21:52:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,608 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-09-12 21:52:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-09-12 21:52:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,610 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-09-12 21:52:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2024-09-12 21:52:59,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2024-09-12 21:52:59,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,612 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2024-09-12 21:52:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2024-09-12 21:52:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,614 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2024-09-12 21:52:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2024-09-12 21:52:59,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2024-09-12 21:52:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2024-09-12 21:52:59,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2024-09-12 21:52:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2024-09-12 21:52:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2024-09-12 21:52:59,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2024-09-12 21:52:59,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2024-09-12 21:52:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2024-09-12 21:52:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2024-09-12 21:52:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2024-09-12 21:52:59,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2024-09-12 21:52:59,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2024-09-12 21:52:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2024-09-12 21:52:59,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2024-09-12 21:52:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507 [2024-09-12 21:52:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2024-09-12 21:52:59,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:52:59,643 INFO L134 CoverageAnalysis]: Checked inductivity of 16513 backedges. 2208 proven. 6241 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2024-09-12 21:52:59,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:52:59,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531726295] [2024-09-12 21:52:59,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531726295] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:52:59,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072928230] [2024-09-12 21:52:59,644 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:52:59,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:52:59,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:52:59,645 INFO L229 MonitoredProcess]: Starting monitored process 130 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:52:59,645 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (130)] Waiting until timeout for monitored process [2024-09-12 21:52:59,810 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:52:59,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:52:59,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 1264 conjuncts, 133 conjuncts are in the unsatisfiable core [2024-09-12 21:52:59,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:53:00,076 INFO L134 CoverageAnalysis]: Checked inductivity of 16513 backedges. 2273 proven. 6176 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2024-09-12 21:53:00,077 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:53:03,072 INFO L134 CoverageAnalysis]: Checked inductivity of 16513 backedges. 2273 proven. 6176 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2024-09-12 21:53:03,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072928230] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:53:03,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:53:03,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70, 70] total 73 [2024-09-12 21:53:03,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866079717] [2024-09-12 21:53:03,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:53:03,073 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2024-09-12 21:53:03,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:53:03,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2024-09-12 21:53:03,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2291, Invalid=2965, Unknown=0, NotChecked=0, Total=5256 [2024-09-12 21:53:03,074 INFO L87 Difference]: Start difference. First operand 528 states and 529 transitions. Second operand has 73 states, 73 states have (on average 2.8493150684931505) internal successors, (208), 71 states have internal predecessors, (208), 66 states have call successors, (68), 3 states have call predecessors, (68), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-09-12 21:53:03,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:53:03,435 INFO L93 Difference]: Finished difference Result 541 states and 543 transitions. [2024-09-12 21:53:03,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-09-12 21:53:03,435 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 2.8493150684931505) internal successors, (208), 71 states have internal predecessors, (208), 66 states have call successors, (68), 3 states have call predecessors, (68), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Word has length 525 [2024-09-12 21:53:03,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:53:03,439 INFO L225 Difference]: With dead ends: 541 [2024-09-12 21:53:03,439 INFO L226 Difference]: Without dead ends: 539 [2024-09-12 21:53:03,439 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1314 GetRequests, 1110 SyntacticMatches, 132 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5131 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=2297, Invalid=3105, Unknown=0, NotChecked=0, Total=5402 [2024-09-12 21:53:03,439 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 21:53:03,439 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 137 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 21:53:03,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-09-12 21:53:03,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 535. [2024-09-12 21:53:03,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 399 states have (on average 1.005012531328321) internal successors, (401), 400 states have internal predecessors, (401), 68 states have call successors, (68), 68 states have call predecessors, (68), 67 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2024-09-12 21:53:03,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 536 transitions. [2024-09-12 21:53:03,488 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 536 transitions. Word has length 525 [2024-09-12 21:53:03,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:53:03,488 INFO L474 AbstractCegarLoop]: Abstraction has 535 states and 536 transitions. [2024-09-12 21:53:03,488 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 2.8493150684931505) internal successors, (208), 71 states have internal predecessors, (208), 66 states have call successors, (68), 3 states have call predecessors, (68), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-09-12 21:53:03,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:53:03,488 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 536 transitions. [2024-09-12 21:53:03,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2024-09-12 21:53:03,490 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:53:03,490 INFO L216 NwaCegarLoop]: trace histogram [66, 66, 66, 65, 65, 65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:53:03,511 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (130)] Forceful destruction successful, exit code 0 [2024-09-12 21:53:03,690 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130,130 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:53:03,691 INFO L399 AbstractCegarLoop]: === Iteration 132 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:53:03,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:53:03,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1890455764, now seen corresponding path program 129 times [2024-09-12 21:53:03,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:53:03,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296449497] [2024-09-12 21:53:03,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:53:03,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:53:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,075 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:53:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 21:53:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,077 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 21:53:10,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,078 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 21:53:10,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,079 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-09-12 21:53:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,080 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 21:53:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,080 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 21:53:10,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,081 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 21:53:10,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,082 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 21:53:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,083 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 21:53:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,084 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-09-12 21:53:10,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,084 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 21:53:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,085 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-09-12 21:53:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,086 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 21:53:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,087 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-09-12 21:53:10,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,088 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 21:53:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,088 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-09-12 21:53:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,089 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 21:53:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,090 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-09-12 21:53:10,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,091 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-09-12 21:53:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,092 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-09-12 21:53:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,092 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-09-12 21:53:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-09-12 21:53:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,094 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-09-12 21:53:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,095 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-09-12 21:53:10,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,096 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-12 21:53:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,096 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-09-12 21:53:10,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-09-12 21:53:10,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,098 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-09-12 21:53:10,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,099 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 21:53:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,100 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2024-09-12 21:53:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,100 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-09-12 21:53:10,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,101 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2024-09-12 21:53:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,102 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2024-09-12 21:53:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2024-09-12 21:53:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,104 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2024-09-12 21:53:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2024-09-12 21:53:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-09-12 21:53:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-09-12 21:53:10,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,107 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-09-12 21:53:10,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-09-12 21:53:10,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-09-12 21:53:10,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,110 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-09-12 21:53:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,110 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2024-09-12 21:53:10,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2024-09-12 21:53:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,112 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2024-09-12 21:53:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,113 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2024-09-12 21:53:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,114 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2024-09-12 21:53:10,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2024-09-12 21:53:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2024-09-12 21:53:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,117 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2024-09-12 21:53:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,117 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2024-09-12 21:53:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,118 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2024-09-12 21:53:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,119 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2024-09-12 21:53:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,120 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2024-09-12 21:53:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,121 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2024-09-12 21:53:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,122 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2024-09-12 21:53:10,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,123 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2024-09-12 21:53:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,124 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2024-09-12 21:53:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2024-09-12 21:53:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,126 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2024-09-12 21:53:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,128 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2024-09-12 21:53:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,129 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2024-09-12 21:53:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,131 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507 [2024-09-12 21:53:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,132 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2024-09-12 21:53:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2024-09-12 21:53:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:10,136 INFO L134 CoverageAnalysis]: Checked inductivity of 16965 backedges. 6307 proven. 2338 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-09-12 21:53:10,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:53:10,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296449497] [2024-09-12 21:53:10,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296449497] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:53:10,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765917181] [2024-09-12 21:53:10,137 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:53:10,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:53:10,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:53:10,139 INFO L229 MonitoredProcess]: Starting monitored process 131 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:53:10,140 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (131)] Waiting until timeout for monitored process [2024-09-12 21:53:10,465 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 66 check-sat command(s) [2024-09-12 21:53:10,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:53:10,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 1278 conjuncts, 134 conjuncts are in the unsatisfiable core [2024-09-12 21:53:10,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:53:16,051 INFO L134 CoverageAnalysis]: Checked inductivity of 16965 backedges. 6500 proven. 2145 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-09-12 21:53:16,051 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:53:20,618 INFO L134 CoverageAnalysis]: Checked inductivity of 16965 backedges. 6500 proven. 2145 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-09-12 21:53:20,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765917181] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:53:20,619 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:53:20,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [135, 135, 135] total 203 [2024-09-12 21:53:20,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194973007] [2024-09-12 21:53:20,619 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:53:20,620 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 203 states [2024-09-12 21:53:20,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:53:20,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 203 interpolants. [2024-09-12 21:53:20,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9184, Invalid=31822, Unknown=0, NotChecked=0, Total=41006 [2024-09-12 21:53:20,622 INFO L87 Difference]: Start difference. First operand 535 states and 536 transitions. Second operand has 203 states, 203 states have (on average 1.6896551724137931) internal successors, (343), 203 states have internal predecessors, (343), 133 states have call successors, (134), 2 states have call predecessors, (134), 1 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2024-09-12 21:53:21,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:53:21,792 INFO L93 Difference]: Finished difference Result 742 states and 809 transitions. [2024-09-12 21:53:21,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2024-09-12 21:53:21,793 INFO L78 Accepts]: Start accepts. Automaton has has 203 states, 203 states have (on average 1.6896551724137931) internal successors, (343), 203 states have internal predecessors, (343), 133 states have call successors, (134), 2 states have call predecessors, (134), 1 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) Word has length 532 [2024-09-12 21:53:21,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:53:21,796 INFO L225 Difference]: With dead ends: 742 [2024-09-12 21:53:21,796 INFO L226 Difference]: Without dead ends: 536 [2024-09-12 21:53:21,797 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1330 GetRequests, 998 SyntacticMatches, 131 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26975 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=9184, Invalid=31822, Unknown=0, NotChecked=0, Total=41006 [2024-09-12 21:53:21,798 INFO L434 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 1827 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 1827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 21:53:21,798 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 919 Invalid, 1827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1827 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 21:53:21,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-09-12 21:53:21,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-09-12 21:53:21,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 400 states have (on average 1.005) internal successors, (402), 401 states have internal predecessors, (402), 68 states have call successors, (68), 68 states have call predecessors, (68), 67 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2024-09-12 21:53:21,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 537 transitions. [2024-09-12 21:53:21,867 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 537 transitions. Word has length 532 [2024-09-12 21:53:21,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:53:21,867 INFO L474 AbstractCegarLoop]: Abstraction has 536 states and 537 transitions. [2024-09-12 21:53:21,868 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 203 states, 203 states have (on average 1.6896551724137931) internal successors, (343), 203 states have internal predecessors, (343), 133 states have call successors, (134), 2 states have call predecessors, (134), 1 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2024-09-12 21:53:21,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:53:21,868 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 537 transitions. [2024-09-12 21:53:21,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-09-12 21:53:21,869 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:53:21,869 INFO L216 NwaCegarLoop]: trace histogram [66, 66, 66, 66, 65, 65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:53:21,882 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (131)] Forceful destruction successful, exit code 0 [2024-09-12 21:53:22,070 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131,131 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:53:22,070 INFO L399 AbstractCegarLoop]: === Iteration 133 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:53:22,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:53:22,070 INFO L85 PathProgramCache]: Analyzing trace with hash 351943736, now seen corresponding path program 130 times [2024-09-12 21:53:22,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:53:22,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740796473] [2024-09-12 21:53:22,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:53:22,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:53:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:53:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 21:53:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 21:53:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 21:53:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,707 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 21:53:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 21:53:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 21:53:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,709 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-09-12 21:53:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 21:53:25,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 21:53:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,711 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 21:53:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 21:53:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,713 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-09-12 21:53:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,713 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 21:53:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-09-12 21:53:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,715 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-09-12 21:53:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,716 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 21:53:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,717 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 21:53:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,717 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 21:53:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,718 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-09-12 21:53:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,719 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-09-12 21:53:25,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 21:53:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-09-12 21:53:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,721 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 21:53:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,722 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-09-12 21:53:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 21:53:25,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-09-12 21:53:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,724 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-09-12 21:53:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,725 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 21:53:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-09-12 21:53:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2024-09-12 21:53:25,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-09-12 21:53:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,728 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-09-12 21:53:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,729 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-09-12 21:53:25,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2024-09-12 21:53:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2024-09-12 21:53:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,731 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-09-12 21:53:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-09-12 21:53:25,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,733 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-09-12 21:53:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,733 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-09-12 21:53:25,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,734 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-09-12 21:53:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,735 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-09-12 21:53:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,736 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-09-12 21:53:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-09-12 21:53:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-09-12 21:53:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,738 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2024-09-12 21:53:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,739 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2024-09-12 21:53:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2024-09-12 21:53:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,741 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2024-09-12 21:53:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,741 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2024-09-12 21:53:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,742 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2024-09-12 21:53:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,743 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2024-09-12 21:53:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,744 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2024-09-12 21:53:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2024-09-12 21:53:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2024-09-12 21:53:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,746 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2024-09-12 21:53:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2024-09-12 21:53:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2024-09-12 21:53:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2024-09-12 21:53:25,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2024-09-12 21:53:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,750 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2024-09-12 21:53:25,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,751 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2024-09-12 21:53:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2024-09-12 21:53:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2024-09-12 21:53:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 515 [2024-09-12 21:53:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2024-09-12 21:53:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:25,756 INFO L134 CoverageAnalysis]: Checked inductivity of 17031 backedges. 2275 proven. 6436 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-09-12 21:53:25,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:53:25,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740796473] [2024-09-12 21:53:25,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740796473] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:53:25,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202774310] [2024-09-12 21:53:25,756 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:53:25,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:53:25,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:53:25,758 INFO L229 MonitoredProcess]: Starting monitored process 132 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:53:25,759 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (132)] Waiting until timeout for monitored process [2024-09-12 21:53:25,931 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:53:25,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:53:25,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 1283 conjuncts, 138 conjuncts are in the unsatisfiable core [2024-09-12 21:53:25,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:53:26,201 INFO L134 CoverageAnalysis]: Checked inductivity of 17031 backedges. 2341 proven. 6370 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-09-12 21:53:26,201 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:53:29,241 INFO L134 CoverageAnalysis]: Checked inductivity of 17031 backedges. 2341 proven. 6370 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2024-09-12 21:53:29,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202774310] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:53:29,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:53:29,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71, 71] total 74 [2024-09-12 21:53:29,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526357077] [2024-09-12 21:53:29,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:53:29,242 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2024-09-12 21:53:29,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:53:29,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2024-09-12 21:53:29,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2359, Invalid=3043, Unknown=0, NotChecked=0, Total=5402 [2024-09-12 21:53:29,243 INFO L87 Difference]: Start difference. First operand 536 states and 537 transitions. Second operand has 74 states, 74 states have (on average 2.8513513513513513) internal successors, (211), 72 states have internal predecessors, (211), 67 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-09-12 21:53:29,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:53:29,651 INFO L93 Difference]: Finished difference Result 549 states and 551 transitions. [2024-09-12 21:53:29,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2024-09-12 21:53:29,652 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 2.8513513513513513) internal successors, (211), 72 states have internal predecessors, (211), 67 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) Word has length 533 [2024-09-12 21:53:29,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:53:29,655 INFO L225 Difference]: With dead ends: 549 [2024-09-12 21:53:29,655 INFO L226 Difference]: Without dead ends: 547 [2024-09-12 21:53:29,655 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1334 GetRequests, 1129 SyntacticMatches, 132 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5142 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=2365, Invalid=3185, Unknown=0, NotChecked=0, Total=5550 [2024-09-12 21:53:29,655 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 21:53:29,655 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 141 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 21:53:29,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-09-12 21:53:29,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 543. [2024-09-12 21:53:29,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 405 states have (on average 1.0049382716049382) internal successors, (407), 406 states have internal predecessors, (407), 69 states have call successors, (69), 69 states have call predecessors, (69), 68 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2024-09-12 21:53:29,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 544 transitions. [2024-09-12 21:53:29,707 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 544 transitions. Word has length 533 [2024-09-12 21:53:29,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:53:29,707 INFO L474 AbstractCegarLoop]: Abstraction has 543 states and 544 transitions. [2024-09-12 21:53:29,707 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 2.8513513513513513) internal successors, (211), 72 states have internal predecessors, (211), 67 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-09-12 21:53:29,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:53:29,708 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 544 transitions. [2024-09-12 21:53:29,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2024-09-12 21:53:29,710 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:53:29,710 INFO L216 NwaCegarLoop]: trace histogram [67, 67, 67, 66, 66, 66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:53:29,723 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (132)] Ended with exit code 0 [2024-09-12 21:53:29,910 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132,132 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:53:29,910 INFO L399 AbstractCegarLoop]: === Iteration 134 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:53:29,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:53:29,911 INFO L85 PathProgramCache]: Analyzing trace with hash 844071403, now seen corresponding path program 131 times [2024-09-12 21:53:29,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:53:29,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988708420] [2024-09-12 21:53:29,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:53:29,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:53:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:53:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 21:53:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 21:53:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 21:53:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 21:53:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 21:53:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 21:53:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-09-12 21:53:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 21:53:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 21:53:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 21:53:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 21:53:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-09-12 21:53:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 21:53:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,517 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-09-12 21:53:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-09-12 21:53:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,519 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 21:53:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,519 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 21:53:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 21:53:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-09-12 21:53:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,522 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-09-12 21:53:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 21:53:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-09-12 21:53:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 21:53:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-09-12 21:53:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,526 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 21:53:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,527 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-09-12 21:53:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,528 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-09-12 21:53:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 21:53:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,531 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-09-12 21:53:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,532 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2024-09-12 21:53:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-09-12 21:53:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-09-12 21:53:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,535 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-09-12 21:53:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,536 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2024-09-12 21:53:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,537 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2024-09-12 21:53:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-09-12 21:53:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-09-12 21:53:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-09-12 21:53:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-09-12 21:53:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-09-12 21:53:36,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-09-12 21:53:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-09-12 21:53:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-09-12 21:53:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,544 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-09-12 21:53:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,545 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2024-09-12 21:53:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,546 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2024-09-12 21:53:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2024-09-12 21:53:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2024-09-12 21:53:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2024-09-12 21:53:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2024-09-12 21:53:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2024-09-12 21:53:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2024-09-12 21:53:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2024-09-12 21:53:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2024-09-12 21:53:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,554 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2024-09-12 21:53:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,555 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2024-09-12 21:53:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2024-09-12 21:53:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,557 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2024-09-12 21:53:36,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,557 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2024-09-12 21:53:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,558 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2024-09-12 21:53:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2024-09-12 21:53:36,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2024-09-12 21:53:36,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2024-09-12 21:53:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 515 [2024-09-12 21:53:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,563 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2024-09-12 21:53:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 529 [2024-09-12 21:53:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:36,566 INFO L134 CoverageAnalysis]: Checked inductivity of 17490 backedges. 6503 proven. 2407 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-09-12 21:53:36,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:53:36,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988708420] [2024-09-12 21:53:36,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988708420] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:53:36,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750510064] [2024-09-12 21:53:36,566 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:53:36,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:53:36,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:53:36,567 INFO L229 MonitoredProcess]: Starting monitored process 133 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:53:36,568 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (133)] Waiting until timeout for monitored process [2024-09-12 21:53:36,817 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 67 check-sat command(s) [2024-09-12 21:53:36,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:53:36,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 1297 conjuncts, 136 conjuncts are in the unsatisfiable core [2024-09-12 21:53:36,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:53:42,554 INFO L134 CoverageAnalysis]: Checked inductivity of 17490 backedges. 6699 proven. 2211 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-09-12 21:53:42,555 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:53:47,258 INFO L134 CoverageAnalysis]: Checked inductivity of 17490 backedges. 6699 proven. 2211 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-09-12 21:53:47,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750510064] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:53:47,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:53:47,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [137, 137, 137] total 206 [2024-09-12 21:53:47,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817733383] [2024-09-12 21:53:47,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:53:47,260 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 206 states [2024-09-12 21:53:47,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:53:47,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 206 interpolants. [2024-09-12 21:53:47,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9457, Invalid=32773, Unknown=0, NotChecked=0, Total=42230 [2024-09-12 21:53:47,262 INFO L87 Difference]: Start difference. First operand 543 states and 544 transitions. Second operand has 206 states, 206 states have (on average 1.6893203883495145) internal successors, (348), 206 states have internal predecessors, (348), 135 states have call successors, (136), 2 states have call predecessors, (136), 1 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2024-09-12 21:53:48,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:53:48,563 INFO L93 Difference]: Finished difference Result 753 states and 821 transitions. [2024-09-12 21:53:48,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2024-09-12 21:53:48,563 INFO L78 Accepts]: Start accepts. Automaton has has 206 states, 206 states have (on average 1.6893203883495145) internal successors, (348), 206 states have internal predecessors, (348), 135 states have call successors, (136), 2 states have call predecessors, (136), 1 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) Word has length 540 [2024-09-12 21:53:48,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:53:48,566 INFO L225 Difference]: With dead ends: 753 [2024-09-12 21:53:48,566 INFO L226 Difference]: Without dead ends: 544 [2024-09-12 21:53:48,568 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1350 GetRequests, 1013 SyntacticMatches, 133 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27786 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=9457, Invalid=32773, Unknown=0, NotChecked=0, Total=42230 [2024-09-12 21:53:48,568 INFO L434 NwaCegarLoop]: 142 mSDtfsCounter, 0 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 2178 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 2178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 21:53:48,568 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1443 Invalid, 2178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2178 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 21:53:48,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-09-12 21:53:48,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 544. [2024-09-12 21:53:48,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 406 states have (on average 1.0049261083743843) internal successors, (408), 407 states have internal predecessors, (408), 69 states have call successors, (69), 69 states have call predecessors, (69), 68 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2024-09-12 21:53:48,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 545 transitions. [2024-09-12 21:53:48,647 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 545 transitions. Word has length 540 [2024-09-12 21:53:48,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:53:48,647 INFO L474 AbstractCegarLoop]: Abstraction has 544 states and 545 transitions. [2024-09-12 21:53:48,648 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 206 states, 206 states have (on average 1.6893203883495145) internal successors, (348), 206 states have internal predecessors, (348), 135 states have call successors, (136), 2 states have call predecessors, (136), 1 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2024-09-12 21:53:48,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:53:48,648 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 545 transitions. [2024-09-12 21:53:48,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2024-09-12 21:53:48,651 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:53:48,651 INFO L216 NwaCegarLoop]: trace histogram [67, 67, 67, 67, 66, 66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:53:48,670 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (133)] Ended with exit code 0 [2024-09-12 21:53:48,851 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133,133 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:53:48,851 INFO L399 AbstractCegarLoop]: === Iteration 135 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:53:48,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:53:48,852 INFO L85 PathProgramCache]: Analyzing trace with hash 412091127, now seen corresponding path program 132 times [2024-09-12 21:53:48,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:53:48,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185189028] [2024-09-12 21:53:48,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:53:48,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:53:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:53:52,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 21:53:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 21:53:52,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 21:53:52,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 21:53:52,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 21:53:52,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 21:53:52,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 21:53:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 21:53:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 21:53:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 21:53:52,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 21:53:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-09-12 21:53:52,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 21:53:52,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 21:53:52,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 21:53:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-09-12 21:53:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 21:53:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-09-12 21:53:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 21:53:52,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-09-12 21:53:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-09-12 21:53:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-09-12 21:53:52,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-09-12 21:53:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-09-12 21:53:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 21:53:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-09-12 21:53:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 21:53:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 21:53:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-09-12 21:53:52,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-09-12 21:53:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-09-12 21:53:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2024-09-12 21:53:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2024-09-12 21:53:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2024-09-12 21:53:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2024-09-12 21:53:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-09-12 21:53:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-09-12 21:53:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-09-12 21:53:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-09-12 21:53:52,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-09-12 21:53:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-09-12 21:53:52,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,659 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-09-12 21:53:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-09-12 21:53:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-09-12 21:53:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,662 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2024-09-12 21:53:52,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,662 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2024-09-12 21:53:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2024-09-12 21:53:52,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,664 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2024-09-12 21:53:52,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,665 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2024-09-12 21:53:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2024-09-12 21:53:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2024-09-12 21:53:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,667 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2024-09-12 21:53:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2024-09-12 21:53:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2024-09-12 21:53:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2024-09-12 21:53:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,671 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2024-09-12 21:53:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,671 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2024-09-12 21:53:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,672 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2024-09-12 21:53:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2024-09-12 21:53:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,674 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2024-09-12 21:53:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2024-09-12 21:53:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2024-09-12 21:53:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 509 [2024-09-12 21:53:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2024-09-12 21:53:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2024-09-12 21:53:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2024-09-12 21:53:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:53:52,681 INFO L134 CoverageAnalysis]: Checked inductivity of 17557 backedges. 2343 proven. 6634 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-09-12 21:53:52,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:53:52,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185189028] [2024-09-12 21:53:52,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185189028] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:53:52,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798234365] [2024-09-12 21:53:52,681 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:53:52,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:53:52,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:53:52,682 INFO L229 MonitoredProcess]: Starting monitored process 134 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:53:52,683 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (134)] Waiting until timeout for monitored process [2024-09-12 21:53:52,947 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 67 check-sat command(s) [2024-09-12 21:53:52,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:53:52,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 1302 conjuncts, 140 conjuncts are in the unsatisfiable core [2024-09-12 21:53:52,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:53:53,238 INFO L134 CoverageAnalysis]: Checked inductivity of 17557 backedges. 2410 proven. 6567 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-09-12 21:53:53,238 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:53:56,363 INFO L134 CoverageAnalysis]: Checked inductivity of 17557 backedges. 2410 proven. 6567 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-09-12 21:53:56,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798234365] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:53:56,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:53:56,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 72, 72] total 75 [2024-09-12 21:53:56,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400053187] [2024-09-12 21:53:56,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:53:56,364 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-09-12 21:53:56,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:53:56,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-09-12 21:53:56,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2428, Invalid=3122, Unknown=0, NotChecked=0, Total=5550 [2024-09-12 21:53:56,366 INFO L87 Difference]: Start difference. First operand 544 states and 545 transitions. Second operand has 75 states, 75 states have (on average 2.8533333333333335) internal successors, (214), 73 states have internal predecessors, (214), 68 states have call successors, (70), 3 states have call predecessors, (70), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-09-12 21:53:56,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:53:56,773 INFO L93 Difference]: Finished difference Result 557 states and 559 transitions. [2024-09-12 21:53:56,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-09-12 21:53:56,774 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 2.8533333333333335) internal successors, (214), 73 states have internal predecessors, (214), 68 states have call successors, (70), 3 states have call predecessors, (70), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) Word has length 541 [2024-09-12 21:53:56,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:53:56,777 INFO L225 Difference]: With dead ends: 557 [2024-09-12 21:53:56,777 INFO L226 Difference]: Without dead ends: 555 [2024-09-12 21:53:56,778 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1354 GetRequests, 1146 SyntacticMatches, 134 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5287 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=2434, Invalid=3266, Unknown=0, NotChecked=0, Total=5700 [2024-09-12 21:53:56,778 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 21:53:56,778 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 142 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 21:53:56,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-09-12 21:53:56,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 551. [2024-09-12 21:53:56,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 411 states have (on average 1.0048661800486618) internal successors, (413), 412 states have internal predecessors, (413), 70 states have call successors, (70), 70 states have call predecessors, (70), 69 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2024-09-12 21:53:56,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 552 transitions. [2024-09-12 21:53:56,830 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 552 transitions. Word has length 541 [2024-09-12 21:53:56,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:53:56,830 INFO L474 AbstractCegarLoop]: Abstraction has 551 states and 552 transitions. [2024-09-12 21:53:56,830 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 2.8533333333333335) internal successors, (214), 73 states have internal predecessors, (214), 68 states have call successors, (70), 3 states have call predecessors, (70), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-09-12 21:53:56,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:53:56,830 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 552 transitions. [2024-09-12 21:53:56,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2024-09-12 21:53:56,832 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:53:56,832 INFO L216 NwaCegarLoop]: trace histogram [68, 68, 68, 67, 67, 67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:53:56,845 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (134)] Ended with exit code 0 [2024-09-12 21:53:57,032 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 134 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable134 [2024-09-12 21:53:57,032 INFO L399 AbstractCegarLoop]: === Iteration 136 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:53:57,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:53:57,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1764788660, now seen corresponding path program 133 times [2024-09-12 21:53:57,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:53:57,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987501528] [2024-09-12 21:53:57,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:53:57,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:53:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:54:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 21:54:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 21:54:03,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 21:54:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 21:54:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 21:54:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 21:54:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 21:54:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 21:54:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 21:54:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 21:54:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 21:54:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-09-12 21:54:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 21:54:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 21:54:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 21:54:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-09-12 21:54:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 21:54:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-09-12 21:54:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 21:54:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-09-12 21:54:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,910 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-09-12 21:54:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,910 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-09-12 21:54:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-09-12 21:54:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,912 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-09-12 21:54:03,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,913 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 21:54:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-09-12 21:54:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,915 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 21:54:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 21:54:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-09-12 21:54:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-09-12 21:54:03,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,918 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-09-12 21:54:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,919 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2024-09-12 21:54:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2024-09-12 21:54:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2024-09-12 21:54:03,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2024-09-12 21:54:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,922 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-09-12 21:54:03,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,923 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-09-12 21:54:03,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-09-12 21:54:03,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-09-12 21:54:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,926 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-09-12 21:54:03,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,926 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-09-12 21:54:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-09-12 21:54:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-09-12 21:54:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,929 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2024-09-12 21:54:03,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2024-09-12 21:54:03,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,931 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2024-09-12 21:54:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,931 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2024-09-12 21:54:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2024-09-12 21:54:03,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2024-09-12 21:54:03,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,934 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2024-09-12 21:54:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,935 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2024-09-12 21:54:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2024-09-12 21:54:03,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2024-09-12 21:54:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2024-09-12 21:54:03,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2024-09-12 21:54:03,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2024-09-12 21:54:03,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2024-09-12 21:54:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2024-09-12 21:54:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2024-09-12 21:54:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2024-09-12 21:54:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2024-09-12 21:54:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2024-09-12 21:54:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,945 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 509 [2024-09-12 21:54:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2024-09-12 21:54:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,947 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2024-09-12 21:54:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2024-09-12 21:54:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,949 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2024-09-12 21:54:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:03,951 INFO L134 CoverageAnalysis]: Checked inductivity of 18023 backedges. 6702 proven. 2477 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked. [2024-09-12 21:54:03,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:54:03,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987501528] [2024-09-12 21:54:03,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987501528] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:54:03,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298878515] [2024-09-12 21:54:03,951 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 21:54:03,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:54:03,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:54:03,952 INFO L229 MonitoredProcess]: Starting monitored process 135 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:54:03,953 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (135)] Waiting until timeout for monitored process [2024-09-12 21:54:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:04,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 1316 conjuncts, 138 conjuncts are in the unsatisfiable core [2024-09-12 21:54:04,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:54:10,029 INFO L134 CoverageAnalysis]: Checked inductivity of 18023 backedges. 6901 proven. 2278 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked. [2024-09-12 21:54:10,029 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:54:14,888 INFO L134 CoverageAnalysis]: Checked inductivity of 18023 backedges. 6901 proven. 2278 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked. [2024-09-12 21:54:14,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298878515] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:54:14,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:54:14,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [139, 139, 139] total 209 [2024-09-12 21:54:14,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339147380] [2024-09-12 21:54:14,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:54:14,889 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 209 states [2024-09-12 21:54:14,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:54:14,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 209 interpolants. [2024-09-12 21:54:14,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9734, Invalid=33738, Unknown=0, NotChecked=0, Total=43472 [2024-09-12 21:54:14,892 INFO L87 Difference]: Start difference. First operand 551 states and 552 transitions. Second operand has 209 states, 209 states have (on average 1.6889952153110048) internal successors, (353), 209 states have internal predecessors, (353), 137 states have call successors, (138), 2 states have call predecessors, (138), 1 states have return successors, (136), 136 states have call predecessors, (136), 136 states have call successors, (136) [2024-09-12 21:54:16,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:54:16,169 INFO L93 Difference]: Finished difference Result 764 states and 833 transitions. [2024-09-12 21:54:16,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2024-09-12 21:54:16,170 INFO L78 Accepts]: Start accepts. Automaton has has 209 states, 209 states have (on average 1.6889952153110048) internal successors, (353), 209 states have internal predecessors, (353), 137 states have call successors, (138), 2 states have call predecessors, (138), 1 states have return successors, (136), 136 states have call predecessors, (136), 136 states have call successors, (136) Word has length 548 [2024-09-12 21:54:16,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:54:16,173 INFO L225 Difference]: With dead ends: 764 [2024-09-12 21:54:16,173 INFO L226 Difference]: Without dead ends: 552 [2024-09-12 21:54:16,175 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1370 GetRequests, 1028 SyntacticMatches, 135 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28609 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=9734, Invalid=33738, Unknown=0, NotChecked=0, Total=43472 [2024-09-12 21:54:16,175 INFO L434 NwaCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 2113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 2113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 21:54:16,175 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1246 Invalid, 2113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2113 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 21:54:16,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-09-12 21:54:16,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-09-12 21:54:16,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 412 states have (on average 1.0048543689320388) internal successors, (414), 413 states have internal predecessors, (414), 70 states have call successors, (70), 70 states have call predecessors, (70), 69 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2024-09-12 21:54:16,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 553 transitions. [2024-09-12 21:54:16,227 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 553 transitions. Word has length 548 [2024-09-12 21:54:16,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:54:16,227 INFO L474 AbstractCegarLoop]: Abstraction has 552 states and 553 transitions. [2024-09-12 21:54:16,227 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 209 states, 209 states have (on average 1.6889952153110048) internal successors, (353), 209 states have internal predecessors, (353), 137 states have call successors, (138), 2 states have call predecessors, (138), 1 states have return successors, (136), 136 states have call predecessors, (136), 136 states have call successors, (136) [2024-09-12 21:54:16,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:54:16,228 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 553 transitions. [2024-09-12 21:54:16,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2024-09-12 21:54:16,229 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:54:16,229 INFO L216 NwaCegarLoop]: trace histogram [68, 68, 68, 68, 67, 67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:54:16,242 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (135)] Forceful destruction successful, exit code 0 [2024-09-12 21:54:16,429 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 135 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable135 [2024-09-12 21:54:16,430 INFO L399 AbstractCegarLoop]: === Iteration 137 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:54:16,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:54:16,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1405867176, now seen corresponding path program 134 times [2024-09-12 21:54:16,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:54:16,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784177264] [2024-09-12 21:54:16,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:54:16,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:54:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:54:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 21:54:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,312 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 21:54:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 21:54:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,314 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 21:54:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,314 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 21:54:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 21:54:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 21:54:20,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 21:54:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 21:54:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 21:54:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 21:54:20,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 21:54:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,320 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 21:54:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-09-12 21:54:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-09-12 21:54:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 21:54:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-09-12 21:54:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,324 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 21:54:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 21:54:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 21:54:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 21:54:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 21:54:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-09-12 21:54:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,329 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-09-12 21:54:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,329 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-09-12 21:54:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,330 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-09-12 21:54:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,331 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-09-12 21:54:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,332 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-09-12 21:54:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,332 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-09-12 21:54:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-09-12 21:54:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-09-12 21:54:20,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,335 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-09-12 21:54:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,336 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-09-12 21:54:20,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,336 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2024-09-12 21:54:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,337 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-09-12 21:54:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-09-12 21:54:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,339 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-09-12 21:54:20,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,339 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-09-12 21:54:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,340 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-09-12 21:54:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,341 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-09-12 21:54:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-09-12 21:54:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,343 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-09-12 21:54:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,343 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-09-12 21:54:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-09-12 21:54:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,345 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2024-09-12 21:54:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,346 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2024-09-12 21:54:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,347 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2024-09-12 21:54:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,347 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2024-09-12 21:54:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,348 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2024-09-12 21:54:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,349 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2024-09-12 21:54:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2024-09-12 21:54:20,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2024-09-12 21:54:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2024-09-12 21:54:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,352 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2024-09-12 21:54:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,353 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2024-09-12 21:54:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,354 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 461 [2024-09-12 21:54:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,355 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2024-09-12 21:54:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 475 [2024-09-12 21:54:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2024-09-12 21:54:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 489 [2024-09-12 21:54:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2024-09-12 21:54:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,359 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2024-09-12 21:54:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,360 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2024-09-12 21:54:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2024-09-12 21:54:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2024-09-12 21:54:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531 [2024-09-12 21:54:20,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,363 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2024-09-12 21:54:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:20,365 INFO L134 CoverageAnalysis]: Checked inductivity of 18091 backedges. 2412 proven. 6835 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked. [2024-09-12 21:54:20,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:54:20,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784177264] [2024-09-12 21:54:20,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784177264] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:54:20,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24063530] [2024-09-12 21:54:20,365 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 21:54:20,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:54:20,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:54:20,366 INFO L229 MonitoredProcess]: Starting monitored process 136 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:54:20,367 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (136)] Waiting until timeout for monitored process [2024-09-12 21:54:20,538 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 21:54:20,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:54:20,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 1321 conjuncts, 139 conjuncts are in the unsatisfiable core [2024-09-12 21:54:20,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:54:20,816 INFO L134 CoverageAnalysis]: Checked inductivity of 18091 backedges. 2480 proven. 6767 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked. [2024-09-12 21:54:20,816 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:54:24,091 INFO L134 CoverageAnalysis]: Checked inductivity of 18091 backedges. 2480 proven. 6767 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked. [2024-09-12 21:54:24,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24063530] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:54:24,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:54:24,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 73, 73] total 76 [2024-09-12 21:54:24,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114144157] [2024-09-12 21:54:24,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:54:24,092 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2024-09-12 21:54:24,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:54:24,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2024-09-12 21:54:24,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2498, Invalid=3202, Unknown=0, NotChecked=0, Total=5700 [2024-09-12 21:54:24,093 INFO L87 Difference]: Start difference. First operand 552 states and 553 transitions. Second operand has 76 states, 76 states have (on average 2.8552631578947367) internal successors, (217), 74 states have internal predecessors, (217), 69 states have call successors, (71), 3 states have call predecessors, (71), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-09-12 21:54:24,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:54:24,503 INFO L93 Difference]: Finished difference Result 565 states and 567 transitions. [2024-09-12 21:54:24,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-09-12 21:54:24,504 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 76 states have (on average 2.8552631578947367) internal successors, (217), 74 states have internal predecessors, (217), 69 states have call successors, (71), 3 states have call predecessors, (71), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Word has length 549 [2024-09-12 21:54:24,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:54:24,507 INFO L225 Difference]: With dead ends: 565 [2024-09-12 21:54:24,507 INFO L226 Difference]: Without dead ends: 563 [2024-09-12 21:54:24,507 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1374 GetRequests, 1161 SyntacticMatches, 138 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5572 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=2504, Invalid=3348, Unknown=0, NotChecked=0, Total=5852 [2024-09-12 21:54:24,507 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 21:54:24,507 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 144 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 21:54:24,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-09-12 21:54:24,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 559. [2024-09-12 21:54:24,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 417 states have (on average 1.0047961630695443) internal successors, (419), 418 states have internal predecessors, (419), 71 states have call successors, (71), 71 states have call predecessors, (71), 70 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-09-12 21:54:24,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 560 transitions. [2024-09-12 21:54:24,561 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 560 transitions. Word has length 549 [2024-09-12 21:54:24,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:54:24,561 INFO L474 AbstractCegarLoop]: Abstraction has 559 states and 560 transitions. [2024-09-12 21:54:24,562 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 2.8552631578947367) internal successors, (217), 74 states have internal predecessors, (217), 69 states have call successors, (71), 3 states have call predecessors, (71), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-09-12 21:54:24,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:54:24,562 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 560 transitions. [2024-09-12 21:54:24,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2024-09-12 21:54:24,564 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:54:24,565 INFO L216 NwaCegarLoop]: trace histogram [69, 69, 69, 68, 68, 68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:54:24,583 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (136)] Forceful destruction successful, exit code 0 [2024-09-12 21:54:24,765 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 136 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable136 [2024-09-12 21:54:24,766 INFO L399 AbstractCegarLoop]: === Iteration 138 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:54:24,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:54:24,766 INFO L85 PathProgramCache]: Analyzing trace with hash -301969717, now seen corresponding path program 135 times [2024-09-12 21:54:24,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:54:24,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172611555] [2024-09-12 21:54:24,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:54:24,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:54:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,876 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:54:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 21:54:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 21:54:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 21:54:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 21:54:31,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 21:54:31,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 21:54:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 21:54:31,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,883 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 21:54:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 21:54:31,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,886 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 21:54:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,887 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 21:54:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,888 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 21:54:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,889 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 21:54:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-09-12 21:54:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-09-12 21:54:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,892 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 21:54:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-09-12 21:54:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 21:54:31,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 21:54:31,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 21:54:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 21:54:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 21:54:31,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-09-12 21:54:31,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-09-12 21:54:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-09-12 21:54:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-09-12 21:54:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-09-12 21:54:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-09-12 21:54:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-09-12 21:54:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-09-12 21:54:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-09-12 21:54:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-09-12 21:54:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-09-12 21:54:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2024-09-12 21:54:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-09-12 21:54:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-09-12 21:54:31,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,910 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2024-09-12 21:54:31,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-09-12 21:54:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,912 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-09-12 21:54:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,913 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-09-12 21:54:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,913 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-09-12 21:54:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-09-12 21:54:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,915 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-09-12 21:54:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-09-12 21:54:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2024-09-12 21:54:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,918 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2024-09-12 21:54:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,919 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2024-09-12 21:54:31,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2024-09-12 21:54:31,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2024-09-12 21:54:31,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2024-09-12 21:54:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,922 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2024-09-12 21:54:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,923 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2024-09-12 21:54:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2024-09-12 21:54:31,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2024-09-12 21:54:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2024-09-12 21:54:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,926 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 461 [2024-09-12 21:54:31,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2024-09-12 21:54:31,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 475 [2024-09-12 21:54:31,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,929 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2024-09-12 21:54:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 489 [2024-09-12 21:54:31,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,931 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2024-09-12 21:54:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2024-09-12 21:54:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2024-09-12 21:54:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2024-09-12 21:54:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,934 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2024-09-12 21:54:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,935 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531 [2024-09-12 21:54:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2024-09-12 21:54:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 545 [2024-09-12 21:54:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:31,939 INFO L134 CoverageAnalysis]: Checked inductivity of 18564 backedges. 6904 proven. 2548 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-09-12 21:54:31,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:54:31,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172611555] [2024-09-12 21:54:31,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172611555] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:54:31,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868616259] [2024-09-12 21:54:31,939 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 21:54:31,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:54:31,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:54:31,940 INFO L229 MonitoredProcess]: Starting monitored process 137 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:54:31,941 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (137)] Waiting until timeout for monitored process [2024-09-12 21:54:32,234 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 69 check-sat command(s) [2024-09-12 21:54:32,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:54:32,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 1335 conjuncts, 140 conjuncts are in the unsatisfiable core [2024-09-12 21:54:32,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:54:38,289 INFO L134 CoverageAnalysis]: Checked inductivity of 18564 backedges. 7106 proven. 2346 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-09-12 21:54:38,289 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:54:43,261 INFO L134 CoverageAnalysis]: Checked inductivity of 18564 backedges. 7106 proven. 2346 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-09-12 21:54:43,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868616259] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:54:43,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:54:43,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [141, 141, 141] total 212 [2024-09-12 21:54:43,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427999895] [2024-09-12 21:54:43,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:54:43,262 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 212 states [2024-09-12 21:54:43,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:54:43,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 212 interpolants. [2024-09-12 21:54:43,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10015, Invalid=34717, Unknown=0, NotChecked=0, Total=44732 [2024-09-12 21:54:43,265 INFO L87 Difference]: Start difference. First operand 559 states and 560 transitions. Second operand has 212 states, 212 states have (on average 1.6886792452830188) internal successors, (358), 212 states have internal predecessors, (358), 139 states have call successors, (140), 2 states have call predecessors, (140), 1 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2024-09-12 21:54:44,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:54:44,513 INFO L93 Difference]: Finished difference Result 775 states and 845 transitions. [2024-09-12 21:54:44,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2024-09-12 21:54:44,513 INFO L78 Accepts]: Start accepts. Automaton has has 212 states, 212 states have (on average 1.6886792452830188) internal successors, (358), 212 states have internal predecessors, (358), 139 states have call successors, (140), 2 states have call predecessors, (140), 1 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) Word has length 556 [2024-09-12 21:54:44,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:54:44,517 INFO L225 Difference]: With dead ends: 775 [2024-09-12 21:54:44,517 INFO L226 Difference]: Without dead ends: 560 [2024-09-12 21:54:44,518 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1390 GetRequests, 1043 SyntacticMatches, 137 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29444 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=10015, Invalid=34717, Unknown=0, NotChecked=0, Total=44732 [2024-09-12 21:54:44,519 INFO L434 NwaCegarLoop]: 146 mSDtfsCounter, 0 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 21:54:44,519 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 896 Invalid, 1789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 21:54:44,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-09-12 21:54:44,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2024-09-12 21:54:44,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 418 states have (on average 1.0047846889952152) internal successors, (420), 419 states have internal predecessors, (420), 71 states have call successors, (71), 71 states have call predecessors, (71), 70 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-09-12 21:54:44,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 561 transitions. [2024-09-12 21:54:44,593 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 561 transitions. Word has length 556 [2024-09-12 21:54:44,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:54:44,593 INFO L474 AbstractCegarLoop]: Abstraction has 560 states and 561 transitions. [2024-09-12 21:54:44,593 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 212 states, 212 states have (on average 1.6886792452830188) internal successors, (358), 212 states have internal predecessors, (358), 139 states have call successors, (140), 2 states have call predecessors, (140), 1 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2024-09-12 21:54:44,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:54:44,593 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 561 transitions. [2024-09-12 21:54:44,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2024-09-12 21:54:44,595 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:54:44,595 INFO L216 NwaCegarLoop]: trace histogram [69, 69, 69, 69, 68, 68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:54:44,609 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (137)] Forceful destruction successful, exit code 0 [2024-09-12 21:54:44,795 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137,137 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:54:44,795 INFO L399 AbstractCegarLoop]: === Iteration 139 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:54:44,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:54:44,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1256900649, now seen corresponding path program 136 times [2024-09-12 21:54:44,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:54:44,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724639767] [2024-09-12 21:54:44,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:54:44,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:54:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,778 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:54:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 21:54:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 21:54:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 21:54:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 21:54:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 21:54:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 21:54:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,784 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 21:54:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 21:54:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 21:54:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 21:54:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-09-12 21:54:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,788 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 21:54:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,788 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 21:54:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 21:54:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 21:54:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 21:54:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-09-12 21:54:48,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 21:54:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 21:54:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,794 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-09-12 21:54:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-09-12 21:54:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-09-12 21:54:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-09-12 21:54:48,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-09-12 21:54:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-09-12 21:54:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 21:54:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-09-12 21:54:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-09-12 21:54:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-09-12 21:54:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-09-12 21:54:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-09-12 21:54:48,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-09-12 21:54:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-09-12 21:54:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-09-12 21:54:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2024-09-12 21:54:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-09-12 21:54:48,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-09-12 21:54:48,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-09-12 21:54:48,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-09-12 21:54:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-09-12 21:54:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-09-12 21:54:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-09-12 21:54:48,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2024-09-12 21:54:48,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-09-12 21:54:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2024-09-12 21:54:48,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2024-09-12 21:54:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2024-09-12 21:54:48,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2024-09-12 21:54:48,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2024-09-12 21:54:48,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2024-09-12 21:54:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2024-09-12 21:54:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2024-09-12 21:54:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2024-09-12 21:54:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2024-09-12 21:54:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2024-09-12 21:54:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,823 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2024-09-12 21:54:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2024-09-12 21:54:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2024-09-12 21:54:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2024-09-12 21:54:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2024-09-12 21:54:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,827 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 497 [2024-09-12 21:54:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2024-09-12 21:54:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2024-09-12 21:54:48,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2024-09-12 21:54:48,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2024-09-12 21:54:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2024-09-12 21:54:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,832 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2024-09-12 21:54:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2024-09-12 21:54:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:54:48,835 INFO L134 CoverageAnalysis]: Checked inductivity of 18633 backedges. 2482 proven. 7039 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-09-12 21:54:48,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:54:48,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724639767] [2024-09-12 21:54:48,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724639767] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:54:48,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531796064] [2024-09-12 21:54:48,835 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 21:54:48,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:54:48,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:54:48,836 INFO L229 MonitoredProcess]: Starting monitored process 138 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:54:48,837 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (138)] Waiting until timeout for monitored process [2024-09-12 21:54:49,017 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 21:54:49,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:54:49,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 1340 conjuncts, 144 conjuncts are in the unsatisfiable core [2024-09-12 21:54:49,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:54:49,299 INFO L134 CoverageAnalysis]: Checked inductivity of 18633 backedges. 2551 proven. 6970 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-09-12 21:54:49,299 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:54:52,639 INFO L134 CoverageAnalysis]: Checked inductivity of 18633 backedges. 2551 proven. 6970 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2024-09-12 21:54:52,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531796064] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:54:52,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:54:52,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 74, 74] total 77 [2024-09-12 21:54:52,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573674198] [2024-09-12 21:54:52,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:54:52,640 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2024-09-12 21:54:52,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:54:52,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2024-09-12 21:54:52,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2569, Invalid=3283, Unknown=0, NotChecked=0, Total=5852 [2024-09-12 21:54:52,641 INFO L87 Difference]: Start difference. First operand 560 states and 561 transitions. Second operand has 77 states, 77 states have (on average 2.857142857142857) internal successors, (220), 75 states have internal predecessors, (220), 70 states have call successors, (72), 3 states have call predecessors, (72), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-09-12 21:54:53,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:54:53,059 INFO L93 Difference]: Finished difference Result 573 states and 575 transitions. [2024-09-12 21:54:53,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-09-12 21:54:53,059 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 77 states have (on average 2.857142857142857) internal successors, (220), 75 states have internal predecessors, (220), 70 states have call successors, (72), 3 states have call predecessors, (72), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) Word has length 557 [2024-09-12 21:54:53,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:54:53,063 INFO L225 Difference]: With dead ends: 573 [2024-09-12 21:54:53,063 INFO L226 Difference]: Without dead ends: 571 [2024-09-12 21:54:53,063 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1394 GetRequests, 1180 SyntacticMatches, 138 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5583 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=2575, Invalid=3431, Unknown=0, NotChecked=0, Total=6006 [2024-09-12 21:54:53,063 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 21:54:53,063 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 148 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 21:54:53,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-09-12 21:54:53,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 567. [2024-09-12 21:54:53,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 423 states have (on average 1.0047281323877069) internal successors, (425), 424 states have internal predecessors, (425), 72 states have call successors, (72), 72 states have call predecessors, (72), 71 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2024-09-12 21:54:53,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 568 transitions. [2024-09-12 21:54:53,119 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 568 transitions. Word has length 557 [2024-09-12 21:54:53,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:54:53,119 INFO L474 AbstractCegarLoop]: Abstraction has 567 states and 568 transitions. [2024-09-12 21:54:53,119 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 2.857142857142857) internal successors, (220), 75 states have internal predecessors, (220), 70 states have call successors, (72), 3 states have call predecessors, (72), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-09-12 21:54:53,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:54:53,119 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 568 transitions. [2024-09-12 21:54:53,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2024-09-12 21:54:53,121 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:54:53,121 INFO L216 NwaCegarLoop]: trace histogram [70, 70, 70, 69, 69, 69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:54:53,135 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (138)] Forceful destruction successful, exit code 0 [2024-09-12 21:54:53,321 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 138 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable138 [2024-09-12 21:54:53,321 INFO L399 AbstractCegarLoop]: === Iteration 140 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:54:53,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:54:53,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1825506668, now seen corresponding path program 137 times [2024-09-12 21:54:53,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:54:53,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829187467] [2024-09-12 21:54:53,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:54:53,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:54:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:55:00,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 21:55:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 21:55:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 21:55:00,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 21:55:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 21:55:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 21:55:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 21:55:00,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 21:55:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 21:55:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 21:55:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-09-12 21:55:00,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 21:55:00,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 21:55:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 21:55:00,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 21:55:00,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 21:55:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-09-12 21:55:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 21:55:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 21:55:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-09-12 21:55:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-09-12 21:55:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-09-12 21:55:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-09-12 21:55:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-09-12 21:55:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-09-12 21:55:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 21:55:00,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-09-12 21:55:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-09-12 21:55:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-09-12 21:55:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-09-12 21:55:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-09-12 21:55:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-09-12 21:55:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-09-12 21:55:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-09-12 21:55:00,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2024-09-12 21:55:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-09-12 21:55:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-09-12 21:55:00,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,671 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-09-12 21:55:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,672 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-09-12 21:55:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-09-12 21:55:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,674 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-09-12 21:55:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,674 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-09-12 21:55:00,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2024-09-12 21:55:00,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-09-12 21:55:00,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2024-09-12 21:55:00,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2024-09-12 21:55:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2024-09-12 21:55:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2024-09-12 21:55:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2024-09-12 21:55:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2024-09-12 21:55:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2024-09-12 21:55:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2024-09-12 21:55:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2024-09-12 21:55:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2024-09-12 21:55:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2024-09-12 21:55:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2024-09-12 21:55:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2024-09-12 21:55:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2024-09-12 21:55:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2024-09-12 21:55:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2024-09-12 21:55:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 497 [2024-09-12 21:55:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2024-09-12 21:55:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2024-09-12 21:55:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2024-09-12 21:55:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2024-09-12 21:55:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,697 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2024-09-12 21:55:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2024-09-12 21:55:00,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2024-09-12 21:55:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 553 [2024-09-12 21:55:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:00,702 INFO L134 CoverageAnalysis]: Checked inductivity of 19113 backedges. 7109 proven. 2620 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2024-09-12 21:55:00,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:55:00,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829187467] [2024-09-12 21:55:00,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829187467] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:55:00,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233474258] [2024-09-12 21:55:00,702 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 21:55:00,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:55:00,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:55:00,703 INFO L229 MonitoredProcess]: Starting monitored process 139 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:55:00,704 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (139)] Waiting until timeout for monitored process [2024-09-12 21:55:00,974 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 70 check-sat command(s) [2024-09-12 21:55:00,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:55:00,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 142 conjuncts are in the unsatisfiable core [2024-09-12 21:55:00,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:55:07,206 INFO L134 CoverageAnalysis]: Checked inductivity of 19113 backedges. 7314 proven. 2415 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2024-09-12 21:55:07,206 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:55:12,288 INFO L134 CoverageAnalysis]: Checked inductivity of 19113 backedges. 7314 proven. 2415 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2024-09-12 21:55:12,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233474258] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:55:12,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:55:12,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [143, 143, 143] total 215 [2024-09-12 21:55:12,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190199021] [2024-09-12 21:55:12,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:55:12,289 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 215 states [2024-09-12 21:55:12,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:55:12,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 215 interpolants. [2024-09-12 21:55:12,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10300, Invalid=35710, Unknown=0, NotChecked=0, Total=46010 [2024-09-12 21:55:12,292 INFO L87 Difference]: Start difference. First operand 567 states and 568 transitions. Second operand has 215 states, 215 states have (on average 1.6883720930232557) internal successors, (363), 215 states have internal predecessors, (363), 141 states have call successors, (142), 2 states have call predecessors, (142), 1 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2024-09-12 21:55:13,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 21:55:13,602 INFO L93 Difference]: Finished difference Result 786 states and 857 transitions. [2024-09-12 21:55:13,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2024-09-12 21:55:13,603 INFO L78 Accepts]: Start accepts. Automaton has has 215 states, 215 states have (on average 1.6883720930232557) internal successors, (363), 215 states have internal predecessors, (363), 141 states have call successors, (142), 2 states have call predecessors, (142), 1 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) Word has length 564 [2024-09-12 21:55:13,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 21:55:13,606 INFO L225 Difference]: With dead ends: 786 [2024-09-12 21:55:13,606 INFO L226 Difference]: Without dead ends: 568 [2024-09-12 21:55:13,608 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1410 GetRequests, 1058 SyntacticMatches, 139 SemanticMatches, 213 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30291 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=10300, Invalid=35710, Unknown=0, NotChecked=0, Total=46010 [2024-09-12 21:55:13,608 INFO L434 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 2055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 21:55:13,609 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1139 Invalid, 2055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 21:55:13,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-09-12 21:55:13,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2024-09-12 21:55:13,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 424 states have (on average 1.0047169811320755) internal successors, (426), 425 states have internal predecessors, (426), 72 states have call successors, (72), 72 states have call predecessors, (72), 71 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2024-09-12 21:55:13,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 569 transitions. [2024-09-12 21:55:13,720 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 569 transitions. Word has length 564 [2024-09-12 21:55:13,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 21:55:13,720 INFO L474 AbstractCegarLoop]: Abstraction has 568 states and 569 transitions. [2024-09-12 21:55:13,721 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 215 states, 215 states have (on average 1.6883720930232557) internal successors, (363), 215 states have internal predecessors, (363), 141 states have call successors, (142), 2 states have call predecessors, (142), 1 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2024-09-12 21:55:13,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:55:13,721 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 569 transitions. [2024-09-12 21:55:13,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2024-09-12 21:55:13,724 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 21:55:13,724 INFO L216 NwaCegarLoop]: trace histogram [70, 70, 70, 70, 69, 69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 21:55:13,743 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (139)] Forceful destruction successful, exit code 0 [2024-09-12 21:55:13,924 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 139 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable139 [2024-09-12 21:55:13,924 INFO L399 AbstractCegarLoop]: === Iteration 141 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 21:55:13,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 21:55:13,925 INFO L85 PathProgramCache]: Analyzing trace with hash 471868024, now seen corresponding path program 138 times [2024-09-12 21:55:13,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 21:55:13,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373965410] [2024-09-12 21:55:13,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 21:55:13,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 21:55:13,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 21:55:18,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 21:55:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 21:55:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 21:55:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,044 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 21:55:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 21:55:18,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,046 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 21:55:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,046 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 21:55:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 21:55:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,048 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 21:55:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 21:55:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-09-12 21:55:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,050 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 21:55:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 21:55:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 21:55:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-09-12 21:55:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 21:55:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-09-12 21:55:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-09-12 21:55:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,056 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 21:55:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,057 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 21:55:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,057 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 21:55:18,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,058 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-09-12 21:55:18,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-09-12 21:55:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-09-12 21:55:18,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-09-12 21:55:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 21:55:18,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,062 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-09-12 21:55:18,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-09-12 21:55:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-09-12 21:55:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 21:55:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,065 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2024-09-12 21:55:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,066 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-09-12 21:55:18,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,067 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2024-09-12 21:55:18,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,068 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-09-12 21:55:18,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,068 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2024-09-12 21:55:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2024-09-12 21:55:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,070 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-09-12 21:55:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,071 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-09-12 21:55:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2024-09-12 21:55:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-09-12 21:55:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,073 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-09-12 21:55:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2024-09-12 21:55:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,075 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2024-09-12 21:55:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2024-09-12 21:55:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2024-09-12 21:55:18,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,077 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2024-09-12 21:55:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,078 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2024-09-12 21:55:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,079 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2024-09-12 21:55:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,080 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2024-09-12 21:55:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,081 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2024-09-12 21:55:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,081 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2024-09-12 21:55:18,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,082 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2024-09-12 21:55:18,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,083 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2024-09-12 21:55:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,084 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2024-09-12 21:55:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,085 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2024-09-12 21:55:18,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,085 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2024-09-12 21:55:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,086 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2024-09-12 21:55:18,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,087 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2024-09-12 21:55:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,088 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2024-09-12 21:55:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,089 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2024-09-12 21:55:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,090 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2024-09-12 21:55:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,091 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2024-09-12 21:55:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,091 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2024-09-12 21:55:18,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,092 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2024-09-12 21:55:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2024-09-12 21:55:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,094 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2024-09-12 21:55:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,095 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2024-09-12 21:55:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,096 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 547 [2024-09-12 21:55:18,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2024-09-12 21:55:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 21:55:18,098 INFO L134 CoverageAnalysis]: Checked inductivity of 19183 backedges. 2553 proven. 7246 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2024-09-12 21:55:18,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 21:55:18,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373965410] [2024-09-12 21:55:18,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373965410] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 21:55:18,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186687701] [2024-09-12 21:55:18,099 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 21:55:18,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 21:55:18,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 21:55:18,100 INFO L229 MonitoredProcess]: Starting monitored process 140 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 21:55:18,101 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (140)] Waiting until timeout for monitored process [2024-09-12 21:55:18,378 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 70 check-sat command(s) [2024-09-12 21:55:18,378 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 21:55:18,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 1359 conjuncts, 146 conjuncts are in the unsatisfiable core [2024-09-12 21:55:18,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 21:55:18,681 INFO L134 CoverageAnalysis]: Checked inductivity of 19183 backedges. 2623 proven. 7176 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2024-09-12 21:55:18,681 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 21:55:22,065 INFO L134 CoverageAnalysis]: Checked inductivity of 19183 backedges. 2623 proven. 7176 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2024-09-12 21:55:22,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186687701] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 21:55:22,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 21:55:22,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 75, 75] total 78 [2024-09-12 21:55:22,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398089679] [2024-09-12 21:55:22,066 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 21:55:22,066 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2024-09-12 21:55:22,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 21:55:22,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2024-09-12 21:55:22,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2641, Invalid=3365, Unknown=0, NotChecked=0, Total=6006 [2024-09-12 21:55:22,067 INFO L87 Difference]: Start difference. First operand 568 states and 569 transitions. Second operand has 78 states, 78 states have (on average 2.858974358974359) internal successors, (223), 76 states have internal predecessors, (223), 71 states have call successors, (73), 3 states have call predecessors, (73), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) Killed by 15