./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive/recHanoi01.c --full-output --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 a9b967e5 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/recursive/recHanoi01.c -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 85b02fad28964214b0cd332ac12fce3136c6c5e9247130ab67f1c2c3baea22f9 --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-a9b967e-m [2024-09-11 20:25:21,125 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:25:21,194 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-11 20:25:21,201 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:25:21,203 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:25:21,234 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:25:21,235 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:25:21,235 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:25:21,236 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:25:21,238 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:25:21,238 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:25:21,238 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:25:21,239 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:25:21,239 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:25:21,239 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:25:21,240 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:25:21,240 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:25:21,240 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:25:21,240 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:25:21,241 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:25:21,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:25:21,241 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:25:21,242 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:25:21,242 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:25:21,242 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:25:21,242 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:25:21,243 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:25:21,243 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:25:21,243 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:25:21,243 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:25:21,244 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:25:21,244 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:25:21,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:25:21,244 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:25:21,245 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:25:21,245 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:25:21,245 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:25:21,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:25:21,246 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:25:21,246 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:25:21,247 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:25:21,249 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:25:21,250 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85b02fad28964214b0cd332ac12fce3136c6c5e9247130ab67f1c2c3baea22f9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 [2024-09-11 20:25:21,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:25:21,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:25:21,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:25:21,538 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:25:21,539 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:25:21,540 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursive/recHanoi01.c [2024-09-11 20:25:22,984 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:25:23,198 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:25:23,201 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive/recHanoi01.c [2024-09-11 20:25:23,213 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/527d4c488/b35e3e50698d4556ae49a206f9864fe1/FLAGcfeabea0e [2024-09-11 20:25:23,255 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/527d4c488/b35e3e50698d4556ae49a206f9864fe1 [2024-09-11 20:25:23,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:25:23,260 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-11 20:25:23,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:25:23,263 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:25:23,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:25:23,272 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:25:23" (1/1) ... [2024-09-11 20:25:23,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2997af73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:25:23, skipping insertion in model container [2024-09-11 20:25:23,273 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:25:23" (1/1) ... [2024-09-11 20:25:23,292 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:25:23,462 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/recursive/recHanoi01.c[1213,1226] [2024-09-11 20:25:23,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:25:23,484 INFO L200 MainTranslator]: Completed pre-run [2024-09-11 20:25:23,501 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/recursive/recHanoi01.c[1213,1226] [2024-09-11 20:25:23,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:25:23,520 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:25:23,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:25:23 WrapperNode [2024-09-11 20:25:23,521 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:25:23,523 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-11 20:25:23,523 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-11 20:25:23,523 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-11 20:25:23,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:25:23" (1/1) ... [2024-09-11 20:25:23,536 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:25:23" (1/1) ... [2024-09-11 20:25:23,553 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2024-09-11 20:25:23,553 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-11 20:25:23,554 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:25:23,554 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:25:23,554 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:25:23,563 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:25:23" (1/1) ... [2024-09-11 20:25:23,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:25:23" (1/1) ... [2024-09-11 20:25:23,565 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:25:23" (1/1) ... [2024-09-11 20:25:23,580 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]. [2024-09-11 20:25:23,584 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:25:23" (1/1) ... [2024-09-11 20:25:23,585 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:25:23" (1/1) ... [2024-09-11 20:25:23,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:25:23" (1/1) ... [2024-09-11 20:25:23,593 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:25:23" (1/1) ... [2024-09-11 20:25:23,595 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:25:23" (1/1) ... [2024-09-11 20:25:23,596 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:25:23" (1/1) ... [2024-09-11 20:25:23,597 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:25:23,598 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:25:23,599 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:25:23,599 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:25:23,600 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:25:23" (1/1) ... [2024-09-11 20:25:23,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:25:23,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:25:23,634 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) [2024-09-11 20:25:23,640 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 [2024-09-11 20:25:23,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:25:23,686 INFO L130 BoogieDeclarations]: Found specification of procedure applyHanoi [2024-09-11 20:25:23,686 INFO L138 BoogieDeclarations]: Found implementation of procedure applyHanoi [2024-09-11 20:25:23,686 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2024-09-11 20:25:23,686 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2024-09-11 20:25:23,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-11 20:25:23,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:25:23,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:25:23,754 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:25:23,757 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:25:23,899 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-09-11 20:25:23,899 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:25:23,926 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:25:23,927 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-11 20:25:23,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:25:23 BoogieIcfgContainer [2024-09-11 20:25:23,931 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:25:23,933 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-11 20:25:23,934 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-11 20:25:23,937 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-11 20:25:23,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 08:25:23" (1/3) ... [2024-09-11 20:25:23,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2acdbc0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 08:25:23, skipping insertion in model container [2024-09-11 20:25:23,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:25:23" (2/3) ... [2024-09-11 20:25:23,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2acdbc0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 08:25:23, skipping insertion in model container [2024-09-11 20:25:23,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:25:23" (3/3) ... [2024-09-11 20:25:23,942 INFO L112 eAbstractionObserver]: Analyzing ICFG recHanoi01.c [2024-09-11 20:25:23,959 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-11 20:25:23,960 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-11 20:25:24,019 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-11 20:25:24,025 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;@52e36620, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-11 20:25:24,025 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-11 20:25:24,029 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 15 states have internal predecessors, (18), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-11 20:25:24,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-09-11 20:25:24,040 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:25:24,040 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:25:24,041 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:25:24,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:25:24,045 INFO L85 PathProgramCache]: Analyzing trace with hash -432663240, now seen corresponding path program 1 times [2024-09-11 20:25:24,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:25:24,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475230097] [2024-09-11 20:25:24,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:25:24,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:25:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:24,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:24,369 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:24,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-11 20:25:24,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:25:24,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475230097] [2024-09-11 20:25:24,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475230097] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-11 20:25:24,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-11 20:25:24,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-11 20:25:24,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908913012] [2024-09-11 20:25:24,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-11 20:25:24,389 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-11 20:25:24,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:25:24,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-11 20:25:24,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-11 20:25:24,410 INFO L87 Difference]: Start difference. First operand has 22 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 15 states have internal predecessors, (18), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-11 20:25:24,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:25:24,596 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2024-09-11 20:25:24,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-11 20:25:24,599 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-09-11 20:25:24,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:25:24,604 INFO L225 Difference]: With dead ends: 38 [2024-09-11 20:25:24,604 INFO L226 Difference]: Without dead ends: 22 [2024-09-11 20:25:24,607 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-11 20:25:24,610 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 15 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-11 20:25:24,611 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 39 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-11 20:25:24,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-09-11 20:25:24,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-09-11 20:25:24,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-11 20:25:24,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2024-09-11 20:25:24,651 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 15 [2024-09-11 20:25:24,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:25:24,652 INFO L474 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2024-09-11 20:25:24,653 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-11 20:25:24,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:25:24,655 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2024-09-11 20:25:24,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-09-11 20:25:24,658 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:25:24,658 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:25:24,659 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-11 20:25:24,660 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:25:24,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:25:24,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1422071395, now seen corresponding path program 1 times [2024-09-11 20:25:24,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:25:24,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000348293] [2024-09-11 20:25:24,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:25:24,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:25:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:24,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:25,131 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:25,144 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:25,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:25:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:25,188 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-11 20:25:25,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:25:25,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000348293] [2024-09-11 20:25:25,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000348293] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:25:25,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334392803] [2024-09-11 20:25:25,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:25:25,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:25:25,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:25:25,193 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) [2024-09-11 20:25:25,195 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-11 20:25:25,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:25,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-11 20:25:25,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:25:25,432 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-11 20:25:25,433 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:25:25,661 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-11 20:25:25,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334392803] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:25:25,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:25:25,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 17 [2024-09-11 20:25:25,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131185397] [2024-09-11 20:25:25,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:25:25,663 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-11 20:25:25,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:25:25,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-11 20:25:25,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-09-11 20:25:25,667 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 17 states, 16 states have (on average 1.75) internal successors, (28), 15 states have internal predecessors, (28), 4 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-11 20:25:26,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:25:26,005 INFO L93 Difference]: Finished difference Result 73 states and 103 transitions. [2024-09-11 20:25:26,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-11 20:25:26,006 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.75) internal successors, (28), 15 states have internal predecessors, (28), 4 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 25 [2024-09-11 20:25:26,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:25:26,008 INFO L225 Difference]: With dead ends: 73 [2024-09-11 20:25:26,009 INFO L226 Difference]: Without dead ends: 67 [2024-09-11 20:25:26,009 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=130, Invalid=520, Unknown=0, NotChecked=0, Total=650 [2024-09-11 20:25:26,011 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 69 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-11 20:25:26,011 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 78 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-11 20:25:26,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-09-11 20:25:26,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 56. [2024-09-11 20:25:26,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 33 states have internal predecessors, (35), 14 states have call successors, (14), 6 states have call predecessors, (14), 11 states have return successors, (33), 16 states have call predecessors, (33), 14 states have call successors, (33) [2024-09-11 20:25:26,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 82 transitions. [2024-09-11 20:25:26,042 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 82 transitions. Word has length 25 [2024-09-11 20:25:26,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:25:26,042 INFO L474 AbstractCegarLoop]: Abstraction has 56 states and 82 transitions. [2024-09-11 20:25:26,042 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.75) internal successors, (28), 15 states have internal predecessors, (28), 4 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-11 20:25:26,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:25:26,043 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 82 transitions. [2024-09-11 20:25:26,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-11 20:25:26,046 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:25:26,046 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:25:26,059 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-11 20:25:26,247 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:25:26,247 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:25:26,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:25:26,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1071008002, now seen corresponding path program 2 times [2024-09-11 20:25:26,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:25:26,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815193440] [2024-09-11 20:25:26,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:25:26,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:25:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:26,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:26,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:26,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:26,436 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:26,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:26,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:26,471 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-11 20:25:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:26,480 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-11 20:25:26,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:25:26,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815193440] [2024-09-11 20:25:26,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815193440] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:25:26,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391985716] [2024-09-11 20:25:26,482 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-11 20:25:26,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:25:26,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:25:26,485 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) [2024-09-11 20:25:26,489 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-11 20:25:26,547 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-11 20:25:26,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-11 20:25:26,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-11 20:25:26,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:25:26,695 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-09-11 20:25:26,696 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:25:27,098 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-11 20:25:27,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391985716] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:25:27,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:25:27,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 11] total 18 [2024-09-11 20:25:27,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671408581] [2024-09-11 20:25:27,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:25:27,099 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-11 20:25:27,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:25:27,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-11 20:25:27,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-09-11 20:25:27,105 INFO L87 Difference]: Start difference. First operand 56 states and 82 transitions. Second operand has 18 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 9 states have call successors, (14), 2 states have call predecessors, (14), 7 states have return successors, (14), 7 states have call predecessors, (14), 9 states have call successors, (14) [2024-09-11 20:25:27,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:25:27,465 INFO L93 Difference]: Finished difference Result 107 states and 168 transitions. [2024-09-11 20:25:27,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-11 20:25:27,466 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 9 states have call successors, (14), 2 states have call predecessors, (14), 7 states have return successors, (14), 7 states have call predecessors, (14), 9 states have call successors, (14) Word has length 35 [2024-09-11 20:25:27,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:25:27,468 INFO L225 Difference]: With dead ends: 107 [2024-09-11 20:25:27,470 INFO L226 Difference]: Without dead ends: 73 [2024-09-11 20:25:27,471 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 69 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=175, Invalid=695, Unknown=0, NotChecked=0, Total=870 [2024-09-11 20:25:27,473 INFO L434 NwaCegarLoop]: 18 mSDtfsCounter, 29 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-11 20:25:27,474 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 107 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-11 20:25:27,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-09-11 20:25:27,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 54. [2024-09-11 20:25:27,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 33 states have (on average 1.121212121212121) internal successors, (37), 32 states have internal predecessors, (37), 11 states have call successors, (11), 9 states have call predecessors, (11), 9 states have return successors, (20), 12 states have call predecessors, (20), 11 states have call successors, (20) [2024-09-11 20:25:27,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2024-09-11 20:25:27,501 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 35 [2024-09-11 20:25:27,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:25:27,501 INFO L474 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2024-09-11 20:25:27,501 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 9 states have call successors, (14), 2 states have call predecessors, (14), 7 states have return successors, (14), 7 states have call predecessors, (14), 9 states have call successors, (14) [2024-09-11 20:25:27,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:25:27,502 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2024-09-11 20:25:27,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-09-11 20:25:27,503 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:25:27,504 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:25:27,521 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-11 20:25:27,705 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:25:27,706 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:25:27,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:25:27,707 INFO L85 PathProgramCache]: Analyzing trace with hash -877477481, now seen corresponding path program 1 times [2024-09-11 20:25:27,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:25:27,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593800123] [2024-09-11 20:25:27,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:25:27,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:25:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:27,763 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:27,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:27,858 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:27,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:25:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:27,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:27,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:27,940 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-11 20:25:27,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:25:27,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593800123] [2024-09-11 20:25:27,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593800123] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:25:27,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711864349] [2024-09-11 20:25:27,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:25:27,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:25:27,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:25:27,943 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) [2024-09-11 20:25:27,946 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-11 20:25:27,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:27,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-11 20:25:27,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:25:28,078 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-11 20:25:28,079 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:25:28,354 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-11 20:25:28,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711864349] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:25:28,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:25:28,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 11] total 20 [2024-09-11 20:25:28,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326711896] [2024-09-11 20:25:28,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:25:28,356 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-11 20:25:28,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:25:28,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-11 20:25:28,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2024-09-11 20:25:28,357 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand has 20 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 9 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (9), 4 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-11 20:25:28,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:25:28,584 INFO L93 Difference]: Finished difference Result 61 states and 75 transitions. [2024-09-11 20:25:28,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-11 20:25:28,585 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 9 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (9), 4 states have call predecessors, (9), 9 states have call successors, (9) Word has length 31 [2024-09-11 20:25:28,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:25:28,586 INFO L225 Difference]: With dead ends: 61 [2024-09-11 20:25:28,586 INFO L226 Difference]: Without dead ends: 49 [2024-09-11 20:25:28,587 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 55 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=140, Invalid=616, Unknown=0, NotChecked=0, Total=756 [2024-09-11 20:25:28,587 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 19 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-11 20:25:28,588 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 92 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-11 20:25:28,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-09-11 20:25:28,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2024-09-11 20:25:28,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 29 states have (on average 1.103448275862069) internal successors, (32), 28 states have internal predecessors, (32), 10 states have call successors, (10), 8 states have call predecessors, (10), 7 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2024-09-11 20:25:28,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 59 transitions. [2024-09-11 20:25:28,601 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 59 transitions. Word has length 31 [2024-09-11 20:25:28,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:25:28,602 INFO L474 AbstractCegarLoop]: Abstraction has 47 states and 59 transitions. [2024-09-11 20:25:28,602 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 9 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (9), 4 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-11 20:25:28,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:25:28,603 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 59 transitions. [2024-09-11 20:25:28,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-09-11 20:25:28,604 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:25:28,604 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:25:28,621 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-11 20:25:28,808 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:25:28,809 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:25:28,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:25:28,809 INFO L85 PathProgramCache]: Analyzing trace with hash -921128009, now seen corresponding path program 2 times [2024-09-11 20:25:28,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:25:28,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848870020] [2024-09-11 20:25:28,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:25:28,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:25:28,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:29,014 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:29,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:29,128 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:29,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:29,203 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:29,217 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:25:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:29,280 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:29,287 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:29,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:25:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:29,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:29,371 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 8 proven. 34 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-11 20:25:29,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:25:29,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848870020] [2024-09-11 20:25:29,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848870020] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:25:29,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981033677] [2024-09-11 20:25:29,373 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-11 20:25:29,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:25:29,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:25:29,374 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) [2024-09-11 20:25:29,376 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-11 20:25:29,443 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-11 20:25:29,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-11 20:25:29,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-09-11 20:25:29,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:25:29,606 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-09-11 20:25:29,607 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:25:30,167 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-11 20:25:30,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981033677] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:25:30,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:25:30,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 18] total 33 [2024-09-11 20:25:30,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976431089] [2024-09-11 20:25:30,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:25:30,169 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-09-11 20:25:30,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:25:30,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-09-11 20:25:30,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=933, Unknown=0, NotChecked=0, Total=1056 [2024-09-11 20:25:30,174 INFO L87 Difference]: Start difference. First operand 47 states and 59 transitions. Second operand has 33 states, 29 states have (on average 1.6206896551724137) internal successors, (47), 26 states have internal predecessors, (47), 9 states have call successors, (17), 7 states have call predecessors, (17), 16 states have return successors, (22), 15 states have call predecessors, (22), 9 states have call successors, (22) [2024-09-11 20:25:31,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:25:31,117 INFO L93 Difference]: Finished difference Result 100 states and 138 transitions. [2024-09-11 20:25:31,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-09-11 20:25:31,118 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 29 states have (on average 1.6206896551724137) internal successors, (47), 26 states have internal predecessors, (47), 9 states have call successors, (17), 7 states have call predecessors, (17), 16 states have return successors, (22), 15 states have call predecessors, (22), 9 states have call successors, (22) Word has length 51 [2024-09-11 20:25:31,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:25:31,120 INFO L225 Difference]: With dead ends: 100 [2024-09-11 20:25:31,123 INFO L226 Difference]: Without dead ends: 96 [2024-09-11 20:25:31,125 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=429, Invalid=2651, Unknown=0, NotChecked=0, Total=3080 [2024-09-11 20:25:31,125 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 130 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-11 20:25:31,126 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 162 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-11 20:25:31,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-09-11 20:25:31,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 79. [2024-09-11 20:25:31,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 44 states have (on average 1.0909090909090908) internal successors, (48), 44 states have internal predecessors, (48), 18 states have call successors, (18), 10 states have call predecessors, (18), 16 states have return successors, (44), 24 states have call predecessors, (44), 18 states have call successors, (44) [2024-09-11 20:25:31,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 110 transitions. [2024-09-11 20:25:31,148 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 110 transitions. Word has length 51 [2024-09-11 20:25:31,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:25:31,149 INFO L474 AbstractCegarLoop]: Abstraction has 79 states and 110 transitions. [2024-09-11 20:25:31,149 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 29 states have (on average 1.6206896551724137) internal successors, (47), 26 states have internal predecessors, (47), 9 states have call successors, (17), 7 states have call predecessors, (17), 16 states have return successors, (22), 15 states have call predecessors, (22), 9 states have call successors, (22) [2024-09-11 20:25:31,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:25:31,150 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 110 transitions. [2024-09-11 20:25:31,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-09-11 20:25:31,152 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:25:31,152 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:25:31,170 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-11 20:25:31,356 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:25:31,357 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:25:31,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:25:31,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1011273987, now seen corresponding path program 3 times [2024-09-11 20:25:31,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:25:31,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826215277] [2024-09-11 20:25:31,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:25:31,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:25:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:31,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:31,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:31,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:31,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:31,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:31,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:31,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:25:31,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:31,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:31,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:31,545 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:25:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:31,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:31,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:31,629 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 13 proven. 45 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-09-11 20:25:31,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:25:31,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826215277] [2024-09-11 20:25:31,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826215277] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:25:31,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947773501] [2024-09-11 20:25:31,633 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-11 20:25:31,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:25:31,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:25:31,635 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) [2024-09-11 20:25:31,637 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-11 20:25:31,701 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-09-11 20:25:31,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-11 20:25:31,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-11 20:25:31,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:25:31,797 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 41 proven. 12 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-09-11 20:25:31,800 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:25:32,320 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 41 proven. 21 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-09-11 20:25:32,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947773501] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:25:32,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:25:32,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 15] total 24 [2024-09-11 20:25:32,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991104985] [2024-09-11 20:25:32,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:25:32,322 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-11 20:25:32,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:25:32,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-11 20:25:32,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2024-09-11 20:25:32,324 INFO L87 Difference]: Start difference. First operand 79 states and 110 transitions. Second operand has 24 states, 23 states have (on average 2.0) internal successors, (46), 22 states have internal predecessors, (46), 12 states have call successors, (20), 2 states have call predecessors, (20), 9 states have return successors, (21), 10 states have call predecessors, (21), 12 states have call successors, (21) [2024-09-11 20:25:32,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:25:32,654 INFO L93 Difference]: Finished difference Result 141 states and 219 transitions. [2024-09-11 20:25:32,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-11 20:25:32,655 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.0) internal successors, (46), 22 states have internal predecessors, (46), 12 states have call successors, (20), 2 states have call predecessors, (20), 9 states have return successors, (21), 10 states have call predecessors, (21), 12 states have call successors, (21) Word has length 57 [2024-09-11 20:25:32,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:25:32,656 INFO L225 Difference]: With dead ends: 141 [2024-09-11 20:25:32,656 INFO L226 Difference]: Without dead ends: 75 [2024-09-11 20:25:32,658 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 112 SyntacticMatches, 7 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=241, Invalid=1091, Unknown=0, NotChecked=0, Total=1332 [2024-09-11 20:25:32,661 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 33 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-11 20:25:32,662 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 88 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-11 20:25:32,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-09-11 20:25:32,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 65. [2024-09-11 20:25:32,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 35 states have internal predecessors, (37), 17 states have call successors, (17), 8 states have call predecessors, (17), 12 states have return successors, (35), 21 states have call predecessors, (35), 17 states have call successors, (35) [2024-09-11 20:25:32,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 89 transitions. [2024-09-11 20:25:32,685 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 89 transitions. Word has length 57 [2024-09-11 20:25:32,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:25:32,685 INFO L474 AbstractCegarLoop]: Abstraction has 65 states and 89 transitions. [2024-09-11 20:25:32,685 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.0) internal successors, (46), 22 states have internal predecessors, (46), 12 states have call successors, (20), 2 states have call predecessors, (20), 9 states have return successors, (21), 10 states have call predecessors, (21), 12 states have call successors, (21) [2024-09-11 20:25:32,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:25:32,686 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 89 transitions. [2024-09-11 20:25:32,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-09-11 20:25:32,688 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:25:32,688 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 8, 7, 7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:25:32,705 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-11 20:25:32,889 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-11 20:25:32,890 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:25:32,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:25:32,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1908192695, now seen corresponding path program 4 times [2024-09-11 20:25:32,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:25:32,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266493846] [2024-09-11 20:25:32,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:25:32,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:25:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:32,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:32,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:33,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:33,096 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:33,119 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:33,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:33,146 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:25:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:33,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:33,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:33,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:25:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:33,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:33,181 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:33,183 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:33,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:25:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:33,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:33,190 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:33,192 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-11 20:25:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:33,217 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:33,245 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 42 proven. 135 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2024-09-11 20:25:33,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:25:33,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266493846] [2024-09-11 20:25:33,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266493846] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:25:33,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458767950] [2024-09-11 20:25:33,246 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-11 20:25:33,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:25:33,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:25:33,248 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) [2024-09-11 20:25:33,249 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-11 20:25:33,337 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-11 20:25:33,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-11 20:25:33,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-11 20:25:33,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:25:33,420 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 48 proven. 125 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2024-09-11 20:25:33,420 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:25:34,034 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 48 proven. 135 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2024-09-11 20:25:34,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458767950] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:25:34,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:25:34,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 15] total 24 [2024-09-11 20:25:34,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162983383] [2024-09-11 20:25:34,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:25:34,036 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-11 20:25:34,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:25:34,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-11 20:25:34,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=460, Unknown=0, NotChecked=0, Total=552 [2024-09-11 20:25:34,037 INFO L87 Difference]: Start difference. First operand 65 states and 89 transitions. Second operand has 24 states, 23 states have (on average 1.9565217391304348) internal successors, (45), 22 states have internal predecessors, (45), 13 states have call successors, (21), 2 states have call predecessors, (21), 9 states have return successors, (19), 7 states have call predecessors, (19), 13 states have call successors, (19) [2024-09-11 20:25:34,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:25:34,405 INFO L93 Difference]: Finished difference Result 116 states and 173 transitions. [2024-09-11 20:25:34,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-11 20:25:34,406 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.9565217391304348) internal successors, (45), 22 states have internal predecessors, (45), 13 states have call successors, (21), 2 states have call predecessors, (21), 9 states have return successors, (19), 7 states have call predecessors, (19), 13 states have call successors, (19) Word has length 91 [2024-09-11 20:25:34,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:25:34,408 INFO L225 Difference]: With dead ends: 116 [2024-09-11 20:25:34,408 INFO L226 Difference]: Without dead ends: 70 [2024-09-11 20:25:34,409 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 194 SyntacticMatches, 7 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=251, Invalid=1155, Unknown=0, NotChecked=0, Total=1406 [2024-09-11 20:25:34,410 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 33 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-11 20:25:34,410 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 113 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-11 20:25:34,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-09-11 20:25:34,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2024-09-11 20:25:34,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 17 states have call successors, (17), 9 states have call predecessors, (17), 11 states have return successors, (32), 19 states have call predecessors, (32), 17 states have call successors, (32) [2024-09-11 20:25:34,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 87 transitions. [2024-09-11 20:25:34,424 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 87 transitions. Word has length 91 [2024-09-11 20:25:34,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:25:34,424 INFO L474 AbstractCegarLoop]: Abstraction has 65 states and 87 transitions. [2024-09-11 20:25:34,424 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.9565217391304348) internal successors, (45), 22 states have internal predecessors, (45), 13 states have call successors, (21), 2 states have call predecessors, (21), 9 states have return successors, (19), 7 states have call predecessors, (19), 13 states have call successors, (19) [2024-09-11 20:25:34,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:25:34,425 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 87 transitions. [2024-09-11 20:25:34,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-09-11 20:25:34,426 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:25:34,427 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 8, 7, 7, 7, 7, 7, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:25:34,444 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-11 20:25:34,627 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:25:34,628 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:25:34,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:25:34,628 INFO L85 PathProgramCache]: Analyzing trace with hash 768848125, now seen corresponding path program 5 times [2024-09-11 20:25:34,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:25:34,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835601704] [2024-09-11 20:25:34,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:25:34,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:25:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:34,987 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:35,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:35,261 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:35,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:35,369 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:35,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:35,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:35,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:35,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:25:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:35,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:35,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:35,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:25:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:35,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:35,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:35,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:35,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:35,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:35,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:25:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:35,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:35,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:35,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:35,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-11 20:25:35,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:35,741 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:35,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:35,799 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 20 proven. 163 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2024-09-11 20:25:35,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:25:35,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835601704] [2024-09-11 20:25:35,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835601704] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:25:35,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620396558] [2024-09-11 20:25:35,800 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-11 20:25:35,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:25:35,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:25:35,802 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) [2024-09-11 20:25:35,803 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-11 20:25:35,904 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2024-09-11 20:25:35,904 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-11 20:25:35,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 91 conjuncts are in the unsatisfiable core [2024-09-11 20:25:35,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:25:36,242 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2024-09-11 20:25:36,242 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:25:37,456 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 441 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-09-11 20:25:37,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620396558] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:25:37,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:25:37,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17, 32] total 53 [2024-09-11 20:25:37,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327164710] [2024-09-11 20:25:37,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:25:37,457 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-09-11 20:25:37,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:25:37,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-09-11 20:25:37,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=2555, Unknown=0, NotChecked=0, Total=2756 [2024-09-11 20:25:37,459 INFO L87 Difference]: Start difference. First operand 65 states and 87 transitions. Second operand has 53 states, 44 states have (on average 1.5909090909090908) internal successors, (70), 40 states have internal predecessors, (70), 16 states have call successors, (26), 11 states have call predecessors, (26), 26 states have return successors, (35), 26 states have call predecessors, (35), 16 states have call successors, (35) [2024-09-11 20:25:40,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:25:40,916 INFO L93 Difference]: Finished difference Result 221 states and 322 transitions. [2024-09-11 20:25:40,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-09-11 20:25:40,917 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 44 states have (on average 1.5909090909090908) internal successors, (70), 40 states have internal predecessors, (70), 16 states have call successors, (26), 11 states have call predecessors, (26), 26 states have return successors, (35), 26 states have call predecessors, (35), 16 states have call successors, (35) Word has length 97 [2024-09-11 20:25:40,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:25:40,921 INFO L225 Difference]: With dead ends: 221 [2024-09-11 20:25:40,921 INFO L226 Difference]: Without dead ends: 217 [2024-09-11 20:25:40,926 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3368 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1726, Invalid=11614, Unknown=0, NotChecked=0, Total=13340 [2024-09-11 20:25:40,928 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 351 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 679 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 2127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 679 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-11 20:25:40,928 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 451 Invalid, 2127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [679 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-11 20:25:40,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-09-11 20:25:40,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 178. [2024-09-11 20:25:40,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 97 states have (on average 1.0721649484536082) internal successors, (104), 96 states have internal predecessors, (104), 47 states have call successors, (47), 27 states have call predecessors, (47), 33 states have return successors, (104), 54 states have call predecessors, (104), 47 states have call successors, (104) [2024-09-11 20:25:40,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 255 transitions. [2024-09-11 20:25:40,996 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 255 transitions. Word has length 97 [2024-09-11 20:25:40,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:25:40,998 INFO L474 AbstractCegarLoop]: Abstraction has 178 states and 255 transitions. [2024-09-11 20:25:40,999 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 44 states have (on average 1.5909090909090908) internal successors, (70), 40 states have internal predecessors, (70), 16 states have call successors, (26), 11 states have call predecessors, (26), 26 states have return successors, (35), 26 states have call predecessors, (35), 16 states have call successors, (35) [2024-09-11 20:25:40,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:25:40,999 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 255 transitions. [2024-09-11 20:25:41,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-09-11 20:25:41,003 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:25:41,003 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 8, 7, 7, 7, 7, 7, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:25:41,018 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-11 20:25:41,204 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:25:41,204 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:25:41,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:25:41,205 INFO L85 PathProgramCache]: Analyzing trace with hash 489586039, now seen corresponding path program 6 times [2024-09-11 20:25:41,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:25:41,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371348445] [2024-09-11 20:25:41,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:25:41,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:25:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:41,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:41,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:41,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:41,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:41,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:41,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:41,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:41,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:25:41,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:41,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:41,494 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:41,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:25:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:41,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:41,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:41,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:41,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:41,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:25:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:41,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:41,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:41,517 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-11 20:25:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:41,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:41,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:41,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:41,635 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 42 proven. 150 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-09-11 20:25:41,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:25:41,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371348445] [2024-09-11 20:25:41,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371348445] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:25:41,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702389123] [2024-09-11 20:25:41,636 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-11 20:25:41,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:25:41,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:25:41,638 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) [2024-09-11 20:25:41,639 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-11 20:25:41,733 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2024-09-11 20:25:41,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-11 20:25:41,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-11 20:25:41,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:25:41,842 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 72 proven. 113 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2024-09-11 20:25:41,843 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:25:42,630 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 72 proven. 132 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-09-11 20:25:42,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702389123] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:25:42,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:25:42,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 19] total 28 [2024-09-11 20:25:42,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776662776] [2024-09-11 20:25:42,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:25:42,631 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-09-11 20:25:42,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:25:42,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-09-11 20:25:42,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=634, Unknown=0, NotChecked=0, Total=756 [2024-09-11 20:25:42,633 INFO L87 Difference]: Start difference. First operand 178 states and 255 transitions. Second operand has 28 states, 27 states have (on average 1.962962962962963) internal successors, (53), 26 states have internal predecessors, (53), 15 states have call successors, (24), 2 states have call predecessors, (24), 11 states have return successors, (28), 12 states have call predecessors, (28), 15 states have call successors, (28) [2024-09-11 20:25:42,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:25:42,985 INFO L93 Difference]: Finished difference Result 290 states and 469 transitions. [2024-09-11 20:25:42,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-11 20:25:42,986 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.962962962962963) internal successors, (53), 26 states have internal predecessors, (53), 15 states have call successors, (24), 2 states have call predecessors, (24), 11 states have return successors, (28), 12 states have call predecessors, (28), 15 states have call successors, (28) Word has length 103 [2024-09-11 20:25:42,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:25:42,989 INFO L225 Difference]: With dead ends: 290 [2024-09-11 20:25:42,989 INFO L226 Difference]: Without dead ends: 180 [2024-09-11 20:25:42,990 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 218 SyntacticMatches, 9 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=352, Invalid=1628, Unknown=0, NotChecked=0, Total=1980 [2024-09-11 20:25:42,991 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 35 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-11 20:25:42,991 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 108 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-11 20:25:42,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-09-11 20:25:43,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 156. [2024-09-11 20:25:43,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 81 states have (on average 1.0617283950617284) internal successors, (86), 81 states have internal predecessors, (86), 45 states have call successors, (45), 22 states have call predecessors, (45), 29 states have return successors, (88), 52 states have call predecessors, (88), 45 states have call successors, (88) [2024-09-11 20:25:43,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 219 transitions. [2024-09-11 20:25:43,023 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 219 transitions. Word has length 103 [2024-09-11 20:25:43,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:25:43,024 INFO L474 AbstractCegarLoop]: Abstraction has 156 states and 219 transitions. [2024-09-11 20:25:43,024 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.962962962962963) internal successors, (53), 26 states have internal predecessors, (53), 15 states have call successors, (24), 2 states have call predecessors, (24), 11 states have return successors, (28), 12 states have call predecessors, (28), 15 states have call successors, (28) [2024-09-11 20:25:43,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:25:43,024 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 219 transitions. [2024-09-11 20:25:43,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-09-11 20:25:43,027 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:25:43,027 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 16, 15, 15, 15, 15, 15, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:25:43,044 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-11 20:25:43,231 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:25:43,232 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:25:43,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:25:43,232 INFO L85 PathProgramCache]: Analyzing trace with hash 635206909, now seen corresponding path program 7 times [2024-09-11 20:25:43,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:25:43,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492182580] [2024-09-11 20:25:43,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:25:43,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:25:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:43,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,743 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,794 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:25:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:25:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:43,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:25:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,827 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-11 20:25:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,854 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,874 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:25:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:25:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,888 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:43,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:25:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-11 20:25:43,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:43,992 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 107 proven. 410 refuted. 0 times theorem prover too weak. 1567 trivial. 0 not checked. [2024-09-11 20:25:43,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:25:43,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492182580] [2024-09-11 20:25:43,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492182580] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:25:43,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424714385] [2024-09-11 20:25:43,993 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-11 20:25:43,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:25:43,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:25:43,995 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) [2024-09-11 20:25:43,998 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-11 20:25:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:44,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-11 20:25:44,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:25:44,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 115 proven. 396 refuted. 0 times theorem prover too weak. 1573 trivial. 0 not checked. [2024-09-11 20:25:44,298 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:25:45,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 115 proven. 416 refuted. 0 times theorem prover too weak. 1553 trivial. 0 not checked. [2024-09-11 20:25:45,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424714385] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:25:45,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:25:45,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 19] total 28 [2024-09-11 20:25:45,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764193480] [2024-09-11 20:25:45,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:25:45,318 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-09-11 20:25:45,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:25:45,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-09-11 20:25:45,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2024-09-11 20:25:45,320 INFO L87 Difference]: Start difference. First operand 156 states and 219 transitions. Second operand has 28 states, 27 states have (on average 1.9259259259259258) internal successors, (52), 26 states have internal predecessors, (52), 16 states have call successors, (25), 2 states have call predecessors, (25), 11 states have return successors, (26), 9 states have call predecessors, (26), 16 states have call successors, (26) [2024-09-11 20:25:45,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:25:45,718 INFO L93 Difference]: Finished difference Result 239 states and 360 transitions. [2024-09-11 20:25:45,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-11 20:25:45,718 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.9259259259259258) internal successors, (52), 26 states have internal predecessors, (52), 16 states have call successors, (25), 2 states have call predecessors, (25), 11 states have return successors, (26), 9 states have call predecessors, (26), 16 states have call successors, (26) Word has length 177 [2024-09-11 20:25:45,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:25:45,720 INFO L225 Difference]: With dead ends: 239 [2024-09-11 20:25:45,721 INFO L226 Difference]: Without dead ends: 169 [2024-09-11 20:25:45,722 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 396 SyntacticMatches, 9 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=362, Invalid=1708, Unknown=0, NotChecked=0, Total=2070 [2024-09-11 20:25:45,722 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 48 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-11 20:25:45,723 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 125 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-11 20:25:45,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-09-11 20:25:45,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 156. [2024-09-11 20:25:45,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 82 states have (on average 1.0609756097560976) internal successors, (87), 82 states have internal predecessors, (87), 45 states have call successors, (45), 23 states have call predecessors, (45), 28 states have return successors, (81), 50 states have call predecessors, (81), 45 states have call successors, (81) [2024-09-11 20:25:45,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 213 transitions. [2024-09-11 20:25:45,752 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 213 transitions. Word has length 177 [2024-09-11 20:25:45,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:25:45,753 INFO L474 AbstractCegarLoop]: Abstraction has 156 states and 213 transitions. [2024-09-11 20:25:45,753 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.9259259259259258) internal successors, (52), 26 states have internal predecessors, (52), 16 states have call successors, (25), 2 states have call predecessors, (25), 11 states have return successors, (26), 9 states have call predecessors, (26), 16 states have call successors, (26) [2024-09-11 20:25:45,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:25:45,754 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 213 transitions. [2024-09-11 20:25:45,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-09-11 20:25:45,756 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:25:45,756 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 16, 15, 15, 15, 15, 15, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:25:45,772 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-11 20:25:45,960 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-11 20:25:45,961 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:25:45,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:25:45,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1718503799, now seen corresponding path program 8 times [2024-09-11 20:25:45,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:25:45,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099748597] [2024-09-11 20:25:45,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:25:45,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:25:45,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:46,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:46,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:47,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,018 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:48,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,120 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,146 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:25:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,185 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:48,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,190 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:48,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:25:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,290 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,301 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:25:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,339 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,346 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-11 20:25:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,573 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:48,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:25:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,742 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:25:48,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:25:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,951 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:48,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:25:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:48,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-11 20:25:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:49,013 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:49,066 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:49,107 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:25:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:25:49,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 44 proven. 707 refuted. 0 times theorem prover too weak. 1349 trivial. 0 not checked. [2024-09-11 20:25:49,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:25:49,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099748597] [2024-09-11 20:25:49,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099748597] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:25:49,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518280433] [2024-09-11 20:25:49,141 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-11 20:25:49,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:25:49,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:25:49,143 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) [2024-09-11 20:25:49,144 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-11 20:25:49,308 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-11 20:25:49,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-11 20:25:49,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 175 conjuncts are in the unsatisfiable core [2024-09-11 20:25:49,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:25:49,759 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 0 proven. 705 refuted. 0 times theorem prover too weak. 1395 trivial. 0 not checked. [2024-09-11 20:25:49,759 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:25:52,594 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 0 proven. 2025 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-09-11 20:25:52,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518280433] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:25:52,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:25:52,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 21, 58] total 85 [2024-09-11 20:25:52,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426436191] [2024-09-11 20:25:52,594 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:25:52,595 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2024-09-11 20:25:52,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:25:52,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2024-09-11 20:25:52,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=6821, Unknown=0, NotChecked=0, Total=7140 [2024-09-11 20:25:52,599 INFO L87 Difference]: Start difference. First operand 156 states and 213 transitions. Second operand has 85 states, 67 states have (on average 1.626865671641791) internal successors, (109), 64 states have internal predecessors, (109), 29 states have call successors, (43), 19 states have call predecessors, (43), 42 states have return successors, (56), 43 states have call predecessors, (56), 29 states have call successors, (56) [2024-09-11 20:26:11,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:26:11,693 INFO L93 Difference]: Finished difference Result 523 states and 791 transitions. [2024-09-11 20:26:11,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2024-09-11 20:26:11,694 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 67 states have (on average 1.626865671641791) internal successors, (109), 64 states have internal predecessors, (109), 29 states have call successors, (43), 19 states have call predecessors, (43), 42 states have return successors, (56), 43 states have call predecessors, (56), 29 states have call successors, (56) Word has length 183 [2024-09-11 20:26:11,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:26:11,699 INFO L225 Difference]: With dead ends: 523 [2024-09-11 20:26:11,699 INFO L226 Difference]: Without dead ends: 519 [2024-09-11 20:26:11,710 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 650 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16650 ImplicationChecksByTransitivity, 18.3s TimeCoverageRelationStatistics Valid=7781, Invalid=50541, Unknown=0, NotChecked=0, Total=58322 [2024-09-11 20:26:11,711 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 1470 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 3119 mSolverCounterSat, 3363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 6482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3363 IncrementalHoareTripleChecker+Valid, 3119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-09-11 20:26:11,711 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1476 Valid, 895 Invalid, 6482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3363 Valid, 3119 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-09-11 20:26:11,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-09-11 20:26:11,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 436. [2024-09-11 20:26:11,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 235 states have (on average 1.0595744680851065) internal successors, (249), 231 states have internal predecessors, (249), 125 states have call successors, (125), 74 states have call predecessors, (125), 75 states have return successors, (256), 130 states have call predecessors, (256), 125 states have call successors, (256) [2024-09-11 20:26:11,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 630 transitions. [2024-09-11 20:26:11,837 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 630 transitions. Word has length 183 [2024-09-11 20:26:11,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:26:11,838 INFO L474 AbstractCegarLoop]: Abstraction has 436 states and 630 transitions. [2024-09-11 20:26:11,838 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 67 states have (on average 1.626865671641791) internal successors, (109), 64 states have internal predecessors, (109), 29 states have call successors, (43), 19 states have call predecessors, (43), 42 states have return successors, (56), 43 states have call predecessors, (56), 29 states have call successors, (56) [2024-09-11 20:26:11,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:26:11,839 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 630 transitions. [2024-09-11 20:26:11,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-09-11 20:26:11,843 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:26:11,843 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 16, 15, 15, 15, 15, 15, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:26:11,860 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-11 20:26:12,043 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-11 20:26:12,044 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:26:12,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:26:12,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1881135043, now seen corresponding path program 9 times [2024-09-11 20:26:12,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:26:12,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444753384] [2024-09-11 20:26:12,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:26:12,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:26:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,249 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,493 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,496 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:12,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,502 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:26:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,536 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:12,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,546 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-11 20:26:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:12,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,570 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:12,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,578 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:26:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,586 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:12,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-11 20:26:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:12,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:12,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:12,726 INFO L134 CoverageAnalysis]: Checked inductivity of 2122 backedges. 107 proven. 431 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked. [2024-09-11 20:26:12,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:26:12,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444753384] [2024-09-11 20:26:12,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444753384] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:26:12,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065957812] [2024-09-11 20:26:12,727 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-11 20:26:12,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:26:12,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:26:12,729 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) [2024-09-11 20:26:12,731 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-11 20:26:12,894 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-09-11 20:26:12,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-11 20:26:12,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-11 20:26:12,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:26:13,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2122 backedges. 115 proven. 415 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2024-09-11 20:26:13,019 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:26:14,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2122 backedges. 115 proven. 447 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2024-09-11 20:26:14,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065957812] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:26:14,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:26:14,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 23] total 32 [2024-09-11 20:26:14,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469281649] [2024-09-11 20:26:14,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:26:14,421 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-11 20:26:14,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:26:14,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-11 20:26:14,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=837, Unknown=0, NotChecked=0, Total=992 [2024-09-11 20:26:14,423 INFO L87 Difference]: Start difference. First operand 436 states and 630 transitions. Second operand has 32 states, 31 states have (on average 1.935483870967742) internal successors, (60), 30 states have internal predecessors, (60), 18 states have call successors, (27), 2 states have call predecessors, (27), 13 states have return successors, (32), 11 states have call predecessors, (32), 18 states have call successors, (32) [2024-09-11 20:26:14,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:26:14,991 INFO L93 Difference]: Finished difference Result 682 states and 1087 transitions. [2024-09-11 20:26:14,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-11 20:26:14,991 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.935483870967742) internal successors, (60), 30 states have internal predecessors, (60), 18 states have call successors, (27), 2 states have call predecessors, (27), 13 states have return successors, (32), 11 states have call predecessors, (32), 18 states have call successors, (32) Word has length 189 [2024-09-11 20:26:14,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:26:14,997 INFO L225 Difference]: With dead ends: 682 [2024-09-11 20:26:14,997 INFO L226 Difference]: Without dead ends: 466 [2024-09-11 20:26:14,999 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 420 SyntacticMatches, 11 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 647 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=484, Invalid=2272, Unknown=0, NotChecked=0, Total=2756 [2024-09-11 20:26:15,000 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 51 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-11 20:26:15,001 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 121 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-11 20:26:15,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-09-11 20:26:15,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 393. [2024-09-11 20:26:15,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 200 states have (on average 1.06) internal successors, (212), 200 states have internal predecessors, (212), 119 states have call successors, (119), 59 states have call predecessors, (119), 73 states have return successors, (219), 133 states have call predecessors, (219), 119 states have call successors, (219) [2024-09-11 20:26:15,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 550 transitions. [2024-09-11 20:26:15,094 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 550 transitions. Word has length 189 [2024-09-11 20:26:15,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:26:15,095 INFO L474 AbstractCegarLoop]: Abstraction has 393 states and 550 transitions. [2024-09-11 20:26:15,095 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.935483870967742) internal successors, (60), 30 states have internal predecessors, (60), 18 states have call successors, (27), 2 states have call predecessors, (27), 13 states have return successors, (32), 11 states have call predecessors, (32), 18 states have call successors, (32) [2024-09-11 20:26:15,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:26:15,096 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 550 transitions. [2024-09-11 20:26:15,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-09-11 20:26:15,100 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:26:15,100 INFO L216 NwaCegarLoop]: trace histogram [47, 47, 24, 23, 23, 23, 23, 23, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:26:15,117 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-11 20:26:15,304 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:26:15,305 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:26:15,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:26:15,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1565835639, now seen corresponding path program 10 times [2024-09-11 20:26:15,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:26:15,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524871046] [2024-09-11 20:26:15,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:26:15,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:26:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:15,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:15,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:15,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,050 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,081 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,100 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,124 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,127 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,131 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:26:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,153 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-11 20:26:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,182 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,185 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,190 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:26:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,201 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,203 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,205 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,207 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,209 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-11 20:26:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,265 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,332 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,336 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,337 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,339 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:26:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,347 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,352 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,355 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:16,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-09-11 20:26:16,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:16,367 INFO L134 CoverageAnalysis]: Checked inductivity of 4860 backedges. 640 proven. 804 refuted. 0 times theorem prover too weak. 3416 trivial. 0 not checked. [2024-09-11 20:26:16,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:26:16,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524871046] [2024-09-11 20:26:16,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524871046] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:26:16,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579810385] [2024-09-11 20:26:16,368 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-11 20:26:16,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:26:16,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:26:16,371 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) [2024-09-11 20:26:16,372 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-11 20:26:16,630 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-11 20:26:16,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-11 20:26:16,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-11 20:26:16,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:26:16,755 INFO L134 CoverageAnalysis]: Checked inductivity of 4860 backedges. 645 proven. 819 refuted. 0 times theorem prover too weak. 3396 trivial. 0 not checked. [2024-09-11 20:26:16,756 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:26:18,498 INFO L134 CoverageAnalysis]: Checked inductivity of 4860 backedges. 645 proven. 844 refuted. 0 times theorem prover too weak. 3371 trivial. 0 not checked. [2024-09-11 20:26:18,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579810385] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:26:18,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:26:18,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 21] total 27 [2024-09-11 20:26:18,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603276054] [2024-09-11 20:26:18,499 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:26:18,499 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-11 20:26:18,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:26:18,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-11 20:26:18,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=569, Unknown=0, NotChecked=0, Total=702 [2024-09-11 20:26:18,501 INFO L87 Difference]: Start difference. First operand 393 states and 550 transitions. Second operand has 27 states, 26 states have (on average 2.269230769230769) internal successors, (59), 25 states have internal predecessors, (59), 20 states have call successors, (36), 3 states have call predecessors, (36), 12 states have return successors, (37), 10 states have call predecessors, (37), 20 states have call successors, (37) [2024-09-11 20:26:18,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:26:18,939 INFO L93 Difference]: Finished difference Result 569 states and 837 transitions. [2024-09-11 20:26:18,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-09-11 20:26:18,939 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.269230769230769) internal successors, (59), 25 states have internal predecessors, (59), 20 states have call successors, (36), 3 states have call predecessors, (36), 12 states have return successors, (37), 10 states have call predecessors, (37), 20 states have call successors, (37) Word has length 263 [2024-09-11 20:26:18,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:26:18,945 INFO L225 Difference]: With dead ends: 569 [2024-09-11 20:26:18,945 INFO L226 Difference]: Without dead ends: 463 [2024-09-11 20:26:18,947 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 664 GetRequests, 604 SyntacticMatches, 10 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=644, Invalid=2008, Unknown=0, NotChecked=0, Total=2652 [2024-09-11 20:26:18,947 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 50 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-11 20:26:18,948 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 122 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-11 20:26:18,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-09-11 20:26:19,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 390. [2024-09-11 20:26:19,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 199 states have (on average 1.0603015075376885) internal successors, (211), 199 states have internal predecessors, (211), 119 states have call successors, (119), 60 states have call predecessors, (119), 71 states have return successors, (203), 130 states have call predecessors, (203), 119 states have call successors, (203) [2024-09-11 20:26:19,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 533 transitions. [2024-09-11 20:26:19,079 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 533 transitions. Word has length 263 [2024-09-11 20:26:19,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:26:19,079 INFO L474 AbstractCegarLoop]: Abstraction has 390 states and 533 transitions. [2024-09-11 20:26:19,079 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.269230769230769) internal successors, (59), 25 states have internal predecessors, (59), 20 states have call successors, (36), 3 states have call predecessors, (36), 12 states have return successors, (37), 10 states have call predecessors, (37), 20 states have call successors, (37) [2024-09-11 20:26:19,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:26:19,080 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 533 transitions. [2024-09-11 20:26:19,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-09-11 20:26:19,083 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:26:19,083 INFO L216 NwaCegarLoop]: trace histogram [63, 63, 32, 31, 31, 31, 31, 31, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:26:19,100 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-11 20:26:19,283 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-11 20:26:19,284 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:26:19,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:26:19,284 INFO L85 PathProgramCache]: Analyzing trace with hash 211607927, now seen corresponding path program 11 times [2024-09-11 20:26:19,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:26:19,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753883988] [2024-09-11 20:26:19,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:26:19,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:26:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:19,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:19,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,124 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,192 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,195 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,201 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:26:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,208 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,210 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,212 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,214 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,215 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,216 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-11 20:26:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,234 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,236 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,237 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,238 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,240 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,241 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:26:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,247 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,253 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,254 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,256 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,259 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:20,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-11 20:26:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,288 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,297 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,302 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,306 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,307 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,309 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:26:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:20,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,320 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,324 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-11 20:26:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,337 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,345 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,346 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,353 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:26:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,360 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,363 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-09-11 20:26:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:20,462 INFO L134 CoverageAnalysis]: Checked inductivity of 8772 backedges. 244 proven. 1105 refuted. 0 times theorem prover too weak. 7423 trivial. 0 not checked. [2024-09-11 20:26:20,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:26:20,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753883988] [2024-09-11 20:26:20,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753883988] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:26:20,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694106652] [2024-09-11 20:26:20,463 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-11 20:26:20,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:26:20,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:26:20,465 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) [2024-09-11 20:26:20,466 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-11 20:26:20,921 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 56 check-sat command(s) [2024-09-11 20:26:20,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-11 20:26:20,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 1633 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-11 20:26:20,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:26:21,034 INFO L134 CoverageAnalysis]: Checked inductivity of 8772 backedges. 839 proven. 501 refuted. 0 times theorem prover too weak. 7432 trivial. 0 not checked. [2024-09-11 20:26:21,034 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:26:22,788 INFO L134 CoverageAnalysis]: Checked inductivity of 8772 backedges. 842 proven. 533 refuted. 0 times theorem prover too weak. 7397 trivial. 0 not checked. [2024-09-11 20:26:22,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694106652] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:26:22,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:26:22,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 23] total 32 [2024-09-11 20:26:22,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65874614] [2024-09-11 20:26:22,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:26:22,789 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-11 20:26:22,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:26:22,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-11 20:26:22,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=838, Unknown=0, NotChecked=0, Total=992 [2024-09-11 20:26:22,790 INFO L87 Difference]: Start difference. First operand 390 states and 533 transitions. Second operand has 32 states, 31 states have (on average 1.903225806451613) internal successors, (59), 30 states have internal predecessors, (59), 19 states have call successors, (30), 2 states have call predecessors, (30), 13 states have return successors, (36), 14 states have call predecessors, (36), 19 states have call successors, (36) [2024-09-11 20:26:23,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:26:23,363 INFO L93 Difference]: Finished difference Result 426 states and 576 transitions. [2024-09-11 20:26:23,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-11 20:26:23,364 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.903225806451613) internal successors, (59), 30 states have internal predecessors, (59), 19 states have call successors, (30), 2 states have call predecessors, (30), 13 states have return successors, (36), 14 states have call predecessors, (36), 19 states have call successors, (36) Word has length 343 [2024-09-11 20:26:23,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:26:23,368 INFO L225 Difference]: With dead ends: 426 [2024-09-11 20:26:23,368 INFO L226 Difference]: Without dead ends: 422 [2024-09-11 20:26:23,369 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 853 GetRequests, 790 SyntacticMatches, 11 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=494, Invalid=2368, Unknown=0, NotChecked=0, Total=2862 [2024-09-11 20:26:23,370 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 36 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-11 20:26:23,370 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 204 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-11 20:26:23,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-09-11 20:26:23,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 393. [2024-09-11 20:26:23,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 201 states have (on average 1.0597014925373134) internal successors, (213), 201 states have internal predecessors, (213), 119 states have call successors, (119), 60 states have call predecessors, (119), 72 states have return successors, (204), 131 states have call predecessors, (204), 119 states have call successors, (204) [2024-09-11 20:26:23,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 536 transitions. [2024-09-11 20:26:23,447 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 536 transitions. Word has length 343 [2024-09-11 20:26:23,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:26:23,448 INFO L474 AbstractCegarLoop]: Abstraction has 393 states and 536 transitions. [2024-09-11 20:26:23,448 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.903225806451613) internal successors, (59), 30 states have internal predecessors, (59), 19 states have call successors, (30), 2 states have call predecessors, (30), 13 states have return successors, (36), 14 states have call predecessors, (36), 19 states have call successors, (36) [2024-09-11 20:26:23,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:26:23,448 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 536 transitions. [2024-09-11 20:26:23,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-09-11 20:26:23,452 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:26:23,452 INFO L216 NwaCegarLoop]: trace histogram [63, 63, 32, 31, 31, 31, 31, 31, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:26:23,469 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-11 20:26:23,652 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-11 20:26:23,652 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:26:23,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:26:23,653 INFO L85 PathProgramCache]: Analyzing trace with hash 247251005, now seen corresponding path program 12 times [2024-09-11 20:26:23,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:26:23,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284734468] [2024-09-11 20:26:23,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:26:23,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:26:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:26,270 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:28,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:28,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:28,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:28,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:28,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:28,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:28,823 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:28,843 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:28,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:28,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:28,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:26:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:28,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:28,923 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:28,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:28,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:28,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:28,953 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:28,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:28,958 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:28,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-11 20:26:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:29,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:29,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:29,180 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:29,185 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:29,189 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:29,209 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:29,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:29,216 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:29,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:26:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:29,266 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:29,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:29,287 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:29,292 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:29,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:29,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:29,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:29,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:29,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-11 20:26:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:29,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,003 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,046 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,067 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,071 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:30,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,096 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,100 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:26:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,182 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,202 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,206 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-11 20:26:30,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,352 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:30,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,449 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:26:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:30,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,570 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:26:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:26:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,612 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-09-11 20:26:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,672 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,724 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,769 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:26:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:26:30,832 INFO L134 CoverageAnalysis]: Checked inductivity of 8794 backedges. 92 proven. 2942 refuted. 0 times theorem prover too weak. 5760 trivial. 0 not checked. [2024-09-11 20:26:30,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:26:30,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284734468] [2024-09-11 20:26:30,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284734468] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:26:30,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523298372] [2024-09-11 20:26:30,832 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-11 20:26:30,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:26:30,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:26:30,834 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) [2024-09-11 20:26:30,835 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-11 20:26:31,258 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 56 check-sat command(s) [2024-09-11 20:26:31,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-11 20:26:31,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 1647 conjuncts, 339 conjuncts are in the unsatisfiable core [2024-09-11 20:26:31,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:26:32,030 INFO L134 CoverageAnalysis]: Checked inductivity of 8794 backedges. 0 proven. 2940 refuted. 0 times theorem prover too weak. 5854 trivial. 0 not checked. [2024-09-11 20:26:32,030 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:26:39,568 INFO L134 CoverageAnalysis]: Checked inductivity of 8794 backedges. 0 proven. 8644 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-09-11 20:26:39,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523298372] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:26:39,568 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:26:39,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 25, 108] total 141 [2024-09-11 20:26:39,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749600543] [2024-09-11 20:26:39,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:26:39,570 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 141 states [2024-09-11 20:26:39,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:26:39,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 141 interpolants. [2024-09-11 20:26:39,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=513, Invalid=19227, Unknown=0, NotChecked=0, Total=19740 [2024-09-11 20:26:39,575 INFO L87 Difference]: Start difference. First operand 393 states and 536 transitions. Second operand has 141 states, 106 states have (on average 1.6981132075471699) internal successors, (180), 108 states have internal predecessors, (180), 54 states have call successors, (76), 35 states have call predecessors, (76), 70 states have return successors, (93), 72 states have call predecessors, (93), 54 states have call successors, (93) [2024-09-11 20:28:53,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:28:53,303 INFO L93 Difference]: Finished difference Result 1256 states and 1957 transitions. [2024-09-11 20:28:53,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 394 states. [2024-09-11 20:28:53,303 INFO L78 Accepts]: Start accepts. Automaton has has 141 states, 106 states have (on average 1.6981132075471699) internal successors, (180), 108 states have internal predecessors, (180), 54 states have call successors, (76), 35 states have call predecessors, (76), 70 states have return successors, (93), 72 states have call predecessors, (93), 54 states have call successors, (93) Word has length 349 [2024-09-11 20:28:53,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:28:53,315 INFO L225 Difference]: With dead ends: 1256 [2024-09-11 20:28:53,315 INFO L226 Difference]: Without dead ends: 1252 [2024-09-11 20:28:53,341 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1318 GetRequests, 802 SyntacticMatches, 0 SemanticMatches, 516 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84924 ImplicationChecksByTransitivity, 129.4s TimeCoverageRelationStatistics Valid=36366, Invalid=231440, Unknown=0, NotChecked=0, Total=267806 [2024-09-11 20:28:53,342 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 6152 mSDsluCounter, 1796 mSDsCounter, 0 mSdLazyCounter, 6523 mSolverCounterSat, 15376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6159 SdHoareTripleChecker+Valid, 1827 SdHoareTripleChecker+Invalid, 21899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15376 IncrementalHoareTripleChecker+Valid, 6523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-09-11 20:28:53,342 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6159 Valid, 1827 Invalid, 21899 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15376 Valid, 6523 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-09-11 20:28:53,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2024-09-11 20:28:53,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1081. [2024-09-11 20:28:53,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 580 states have (on average 1.05) internal successors, (609), 569 states have internal predecessors, (609), 324 states have call successors, (324), 195 states have call predecessors, (324), 176 states have return successors, (644), 316 states have call predecessors, (644), 324 states have call successors, (644) [2024-09-11 20:28:53,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1577 transitions. [2024-09-11 20:28:53,698 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1577 transitions. Word has length 349 [2024-09-11 20:28:53,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:28:53,699 INFO L474 AbstractCegarLoop]: Abstraction has 1081 states and 1577 transitions. [2024-09-11 20:28:53,700 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 141 states, 106 states have (on average 1.6981132075471699) internal successors, (180), 108 states have internal predecessors, (180), 54 states have call successors, (76), 35 states have call predecessors, (76), 70 states have return successors, (93), 72 states have call predecessors, (93), 54 states have call successors, (93) [2024-09-11 20:28:53,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:53,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1577 transitions. [2024-09-11 20:28:53,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2024-09-11 20:28:53,708 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:28:53,708 INFO L216 NwaCegarLoop]: trace histogram [63, 63, 32, 31, 31, 31, 31, 31, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:28:53,726 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-11 20:28:53,909 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-11 20:28:53,909 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:28:53,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:53,909 INFO L85 PathProgramCache]: Analyzing trace with hash -2054178505, now seen corresponding path program 13 times [2024-09-11 20:28:53,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:28:53,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848177570] [2024-09-11 20:28:53,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:53,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:28:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,519 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:28:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,709 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:28:54,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:28:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,715 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,722 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,724 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,725 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:28:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:28:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,729 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:28:54,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-11 20:28:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,755 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:28:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:28:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:28:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,768 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,769 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:28:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,770 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:28:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,774 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:28:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-11 20:28:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,931 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:28:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:28:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,935 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:28:54,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:54,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:28:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,945 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:28:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,947 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:28:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,950 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-11 20:28:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,958 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:28:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:28:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,970 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,971 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:28:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,972 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,978 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:28:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:28:54,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:28:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,985 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-09-11 20:28:54,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,021 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,050 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,075 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,098 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:55,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:28:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,142 INFO L134 CoverageAnalysis]: Checked inductivity of 8822 backedges. 244 proven. 1132 refuted. 0 times theorem prover too weak. 7446 trivial. 0 not checked. [2024-09-11 20:28:55,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:28:55,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848177570] [2024-09-11 20:28:55,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848177570] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:28:55,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097558966] [2024-09-11 20:28:55,143 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-11 20:28:55,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:28:55,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:28:55,146 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) [2024-09-11 20:28:55,147 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-11 20:28:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 1661 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-11 20:28:55,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:28:55,564 INFO L134 CoverageAnalysis]: Checked inductivity of 8822 backedges. 254 proven. 1112 refuted. 0 times theorem prover too weak. 7456 trivial. 0 not checked. [2024-09-11 20:28:55,564 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:28:57,904 INFO L134 CoverageAnalysis]: Checked inductivity of 8822 backedges. 254 proven. 1162 refuted. 0 times theorem prover too weak. 7406 trivial. 0 not checked. [2024-09-11 20:28:57,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097558966] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:28:57,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:28:57,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17, 27] total 36 [2024-09-11 20:28:57,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564731933] [2024-09-11 20:28:57,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:28:57,907 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-11 20:28:57,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:28:57,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-11 20:28:57,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1068, Unknown=0, NotChecked=0, Total=1260 [2024-09-11 20:28:57,908 INFO L87 Difference]: Start difference. First operand 1081 states and 1577 transitions. Second operand has 36 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 34 states have internal predecessors, (67), 21 states have call successors, (31), 2 states have call predecessors, (31), 15 states have return successors, (39), 13 states have call predecessors, (39), 21 states have call successors, (39) [2024-09-11 20:28:59,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:28:59,078 INFO L93 Difference]: Finished difference Result 1651 states and 2595 transitions. [2024-09-11 20:28:59,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-11 20:28:59,079 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 34 states have internal predecessors, (67), 21 states have call successors, (31), 2 states have call predecessors, (31), 15 states have return successors, (39), 13 states have call predecessors, (39), 21 states have call successors, (39) Word has length 355 [2024-09-11 20:28:59,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:28:59,090 INFO L225 Difference]: With dead ends: 1651 [2024-09-11 20:28:59,090 INFO L226 Difference]: Without dead ends: 1179 [2024-09-11 20:28:59,095 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 886 GetRequests, 814 SyntacticMatches, 13 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 899 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=637, Invalid=3023, Unknown=0, NotChecked=0, Total=3660 [2024-09-11 20:28:59,096 INFO L434 NwaCegarLoop]: 16 mSDtfsCounter, 54 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-11 20:28:59,097 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 195 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-11 20:28:59,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2024-09-11 20:28:59,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 976. [2024-09-11 20:28:59,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 492 states have (on average 1.0548780487804879) internal successors, (519), 492 states have internal predecessors, (519), 303 states have call successors, (303), 151 states have call predecessors, (303), 180 states have return successors, (532), 332 states have call predecessors, (532), 303 states have call successors, (532) [2024-09-11 20:28:59,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1354 transitions. [2024-09-11 20:28:59,430 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1354 transitions. Word has length 355 [2024-09-11 20:28:59,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:28:59,431 INFO L474 AbstractCegarLoop]: Abstraction has 976 states and 1354 transitions. [2024-09-11 20:28:59,431 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 34 states have internal predecessors, (67), 21 states have call successors, (31), 2 states have call predecessors, (31), 15 states have return successors, (39), 13 states have call predecessors, (39), 21 states have call successors, (39) [2024-09-11 20:28:59,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:59,432 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1354 transitions. [2024-09-11 20:28:59,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2024-09-11 20:28:59,440 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:28:59,440 INFO L216 NwaCegarLoop]: trace histogram [127, 127, 64, 63, 63, 63, 63, 63, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:28:59,460 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-11 20:28:59,640 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-11 20:28:59,641 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:28:59,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:59,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1562767421, now seen corresponding path program 14 times [2024-09-11 20:28:59,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:28:59,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423498868] [2024-09-11 20:28:59,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:59,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:28:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:00,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:00,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,573 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:29:01,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:29:01,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:29:01,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-11 20:29:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,664 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,665 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:29:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,667 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:29:01,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:29:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-11 20:29:01,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,707 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,716 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,722 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,724 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:29:01,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:29:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,734 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,735 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,736 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:29:01,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,739 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,741 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-11 20:29:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,755 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:29:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:29:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,765 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,768 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,769 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,770 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:29:01,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,774 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-09-11 20:29:01,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:29:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,875 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,876 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:29:01,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,883 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:29:01,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,886 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,887 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-11 20:29:01,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:29:01,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,912 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,912 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:29:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,918 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,919 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:29:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,923 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,926 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-11 20:29:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,951 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,956 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,958 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,959 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:29:01,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:29:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,971 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,972 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,973 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:29:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,975 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-11 20:29:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,985 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,994 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:29:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,998 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:29:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:02,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:02,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:02,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:02,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:02,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-11 20:29:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:02,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:02,010 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-11 20:29:02,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:02,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 637 [2024-09-11 20:29:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:02,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:02,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:02,071 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:02,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:02,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:02,114 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-11 20:29:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:02,148 INFO L134 CoverageAnalysis]: Checked inductivity of 35962 backedges. 525 proven. 2772 refuted. 0 times theorem prover too weak. 32665 trivial. 0 not checked. [2024-09-11 20:29:02,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:29:02,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423498868] [2024-09-11 20:29:02,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423498868] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:29:02,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435327711] [2024-09-11 20:29:02,149 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-11 20:29:02,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:29:02,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:29:02,151 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) [2024-09-11 20:29:02,154 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-11 20:29:02,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-11 20:29:02,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-11 20:29:02,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 3215 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-11 20:29:02,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:29:02,796 INFO L134 CoverageAnalysis]: Checked inductivity of 35962 backedges. 537 proven. 2750 refuted. 0 times theorem prover too weak. 32675 trivial. 0 not checked. [2024-09-11 20:29:02,796 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:29:06,207 INFO L134 CoverageAnalysis]: Checked inductivity of 35962 backedges. 537 proven. 2802 refuted. 0 times theorem prover too weak. 32623 trivial. 0 not checked. [2024-09-11 20:29:06,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435327711] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:29:06,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:29:06,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17, 27] total 36 [2024-09-11 20:29:06,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317070536] [2024-09-11 20:29:06,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:29:06,208 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-11 20:29:06,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:29:06,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-11 20:29:06,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1069, Unknown=0, NotChecked=0, Total=1260 [2024-09-11 20:29:06,210 INFO L87 Difference]: Start difference. First operand 976 states and 1354 transitions. Second operand has 36 states, 35 states have (on average 1.8857142857142857) internal successors, (66), 34 states have internal predecessors, (66), 22 states have call successors, (33), 2 states have call predecessors, (33), 15 states have return successors, (40), 13 states have call predecessors, (40), 22 states have call successors, (40) [2024-09-11 20:29:07,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:29:07,177 INFO L93 Difference]: Finished difference Result 1203 states and 1756 transitions. [2024-09-11 20:29:07,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-09-11 20:29:07,178 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 1.8857142857142857) internal successors, (66), 34 states have internal predecessors, (66), 22 states have call successors, (33), 2 states have call predecessors, (33), 15 states have return successors, (40), 13 states have call predecessors, (40), 22 states have call successors, (40) Word has length 669 [2024-09-11 20:29:07,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:29:07,187 INFO L225 Difference]: With dead ends: 1203 [2024-09-11 20:29:07,187 INFO L226 Difference]: Without dead ends: 1037 [2024-09-11 20:29:07,190 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1641 GetRequests, 1568 SyntacticMatches, 13 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 838 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=647, Invalid=3135, Unknown=0, NotChecked=0, Total=3782 [2024-09-11 20:29:07,191 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 64 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-11 20:29:07,191 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 193 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-11 20:29:07,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2024-09-11 20:29:07,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 976. [2024-09-11 20:29:07,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 493 states have (on average 1.054766734279919) internal successors, (520), 493 states have internal predecessors, (520), 303 states have call successors, (303), 152 states have call predecessors, (303), 179 states have return successors, (501), 330 states have call predecessors, (501), 303 states have call successors, (501) [2024-09-11 20:29:07,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1324 transitions. [2024-09-11 20:29:07,594 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1324 transitions. Word has length 669 [2024-09-11 20:29:07,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:29:07,595 INFO L474 AbstractCegarLoop]: Abstraction has 976 states and 1324 transitions. [2024-09-11 20:29:07,595 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 1.8857142857142857) internal successors, (66), 34 states have internal predecessors, (66), 22 states have call successors, (33), 2 states have call predecessors, (33), 15 states have return successors, (40), 13 states have call predecessors, (40), 22 states have call successors, (40) [2024-09-11 20:29:07,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:29:07,596 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1324 transitions. [2024-09-11 20:29:07,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 676 [2024-09-11 20:29:07,604 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:29:07,604 INFO L216 NwaCegarLoop]: trace histogram [127, 127, 64, 63, 63, 63, 63, 63, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:29:07,625 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-09-11 20:29:07,804 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:29:07,805 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:29:07,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:29:07,805 INFO L85 PathProgramCache]: Analyzing trace with hash -866850505, now seen corresponding path program 15 times [2024-09-11 20:29:07,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:29:07,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247577203] [2024-09-11 20:29:07,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:29:07,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:29:07,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat