./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/down.i --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --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/loop-invgen/down.i -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d487f6cb836d5c7294168f7ececc6a4515780c0860389f79570a9c0e20e7bcc0 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 17:59:17,236 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 17:59:17,322 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 17:59:17,327 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 17:59:17,327 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 17:59:17,361 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 17:59:17,362 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 17:59:17,363 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 17:59:17,364 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 17:59:17,365 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 17:59:17,366 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 17:59:17,366 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 17:59:17,367 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 17:59:17,367 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 17:59:17,367 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 17:59:17,368 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 17:59:17,368 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 17:59:17,368 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 17:59:17,368 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 17:59:17,369 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 17:59:17,372 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 17:59:17,372 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 17:59:17,373 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 17:59:17,373 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 17:59:17,373 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 17:59:17,374 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 17:59:17,374 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 17:59:17,374 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 17:59:17,375 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 17:59:17,375 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 17:59:17,375 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 17:59:17,376 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 17:59:17,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 17:59:17,377 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 17:59:17,377 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 17:59:17,386 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 17:59:17,386 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 17:59:17,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 17:59:17,387 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 17:59:17,387 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 17:59:17,388 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 17:59:17,388 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 17:59:17,388 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d487f6cb836d5c7294168f7ececc6a4515780c0860389f79570a9c0e20e7bcc0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 17:59:17,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 17:59:17,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 17:59:17,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 17:59:17,724 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 17:59:17,725 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 17:59:17,726 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-invgen/down.i [2024-09-12 17:59:19,243 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 17:59:19,454 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 17:59:19,455 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/down.i [2024-09-12 17:59:19,465 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/7068fc7ca/4f108cef1c5a4c178be7f6f716533fbe/FLAGec749bd42 [2024-09-12 17:59:19,483 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/7068fc7ca/4f108cef1c5a4c178be7f6f716533fbe [2024-09-12 17:59:19,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 17:59:19,486 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 17:59:19,489 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 17:59:19,490 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 17:59:19,494 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 17:59:19,497 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 05:59:19" (1/1) ... [2024-09-12 17:59:19,498 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b33539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:19, skipping insertion in model container [2024-09-12 17:59:19,498 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 05:59:19" (1/1) ... [2024-09-12 17:59:19,517 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 17:59:19,678 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/down.i[893,906] [2024-09-12 17:59:19,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 17:59:19,705 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 17:59:19,717 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/down.i[893,906] [2024-09-12 17:59:19,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 17:59:19,738 INFO L204 MainTranslator]: Completed translation [2024-09-12 17:59:19,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:19 WrapperNode [2024-09-12 17:59:19,739 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 17:59:19,740 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 17:59:19,741 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 17:59:19,741 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 17:59:19,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:19" (1/1) ... [2024-09-12 17:59:19,754 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:19" (1/1) ... [2024-09-12 17:59:19,761 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 17:59:19,761 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 17:59:19,763 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 17:59:19,763 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 17:59:19,763 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 17:59:19,781 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:19" (1/1) ... [2024-09-12 17:59:19,781 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:19" (1/1) ... [2024-09-12 17:59:19,786 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:19" (1/1) ... [2024-09-12 17:59:19,803 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 17:59:19,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:19" (1/1) ... [2024-09-12 17:59:19,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:19" (1/1) ... [2024-09-12 17:59:19,809 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:19" (1/1) ... [2024-09-12 17:59:19,815 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:19" (1/1) ... [2024-09-12 17:59:19,817 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:19" (1/1) ... [2024-09-12 17:59:19,818 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:19" (1/1) ... [2024-09-12 17:59:19,819 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 17:59:19,820 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 17:59:19,820 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 17:59:19,820 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 17:59:19,821 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:19" (1/1) ... [2024-09-12 17:59:19,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 17:59:19,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:19,856 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 17:59:19,862 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 17:59:19,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 17:59:19,908 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 17:59:19,908 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 17:59:19,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 17:59:19,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 17:59:19,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 17:59:19,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 17:59:19,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 17:59:19,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 17:59:19,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 17:59:19,969 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 17:59:19,971 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 17:59:20,100 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-09-12 17:59:20,101 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 17:59:20,128 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 17:59:20,128 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-12 17:59:20,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 05:59:20 BoogieIcfgContainer [2024-09-12 17:59:20,129 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 17:59:20,130 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 17:59:20,131 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 17:59:20,134 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 17:59:20,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 05:59:19" (1/3) ... [2024-09-12 17:59:20,135 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7654ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 05:59:20, skipping insertion in model container [2024-09-12 17:59:20,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 05:59:19" (2/3) ... [2024-09-12 17:59:20,135 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7654ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 05:59:20, skipping insertion in model container [2024-09-12 17:59:20,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 05:59:20" (3/3) ... [2024-09-12 17:59:20,136 INFO L112 eAbstractionObserver]: Analyzing ICFG down.i [2024-09-12 17:59:20,152 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 17:59:20,152 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-09-12 17:59:20,222 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 17:59:20,228 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;@4a8aca2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 17:59:20,229 INFO L337 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-09-12 17:59:20,232 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 20 states have (on average 1.7) internal successors, (34), 29 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 17:59:20,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-12 17:59:20,238 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:20,239 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:20,239 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:20,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:20,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1354627618, now seen corresponding path program 1 times [2024-09-12 17:59:20,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:20,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810170716] [2024-09-12 17:59:20,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:20,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:20,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:20,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:20,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:20,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810170716] [2024-09-12 17:59:20,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810170716] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:20,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:20,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 17:59:20,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722115145] [2024-09-12 17:59:20,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:20,511 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 17:59:20,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:20,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 17:59:20,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 17:59:20,538 INFO L87 Difference]: Start difference. First operand has 36 states, 20 states have (on average 1.7) internal successors, (34), 29 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:20,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:20,598 INFO L93 Difference]: Finished difference Result 63 states and 72 transitions. [2024-09-12 17:59:20,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 17:59:20,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2024-09-12 17:59:20,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:20,606 INFO L225 Difference]: With dead ends: 63 [2024-09-12 17:59:20,607 INFO L226 Difference]: Without dead ends: 35 [2024-09-12 17:59:20,610 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 17:59:20,616 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 1 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:20,617 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 90 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:20,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-09-12 17:59:20,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-09-12 17:59:20,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 29 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:20,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2024-09-12 17:59:20,660 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 7 [2024-09-12 17:59:20,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:20,661 INFO L474 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2024-09-12 17:59:20,661 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:20,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:20,662 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2024-09-12 17:59:20,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-09-12 17:59:20,663 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:20,663 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:20,663 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 17:59:20,663 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:20,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:20,664 INFO L85 PathProgramCache]: Analyzing trace with hash -422048672, now seen corresponding path program 1 times [2024-09-12 17:59:20,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:20,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655040322] [2024-09-12 17:59:20,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:20,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:20,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:20,751 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:20,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:20,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:20,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655040322] [2024-09-12 17:59:20,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655040322] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:20,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:20,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 17:59:20,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414365967] [2024-09-12 17:59:20,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:20,766 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 17:59:20,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:20,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 17:59:20,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 17:59:20,769 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:20,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:20,817 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2024-09-12 17:59:20,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 17:59:20,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2024-09-12 17:59:20,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:20,820 INFO L225 Difference]: With dead ends: 47 [2024-09-12 17:59:20,821 INFO L226 Difference]: Without dead ends: 45 [2024-09-12 17:59:20,822 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 17:59:20,823 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 8 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:20,823 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 80 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:20,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-09-12 17:59:20,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 37. [2024-09-12 17:59:20,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 31 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:20,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2024-09-12 17:59:20,835 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 9 [2024-09-12 17:59:20,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:20,835 INFO L474 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2024-09-12 17:59:20,835 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:20,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:20,836 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2024-09-12 17:59:20,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-09-12 17:59:20,837 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:20,837 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:20,837 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 17:59:20,837 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:20,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:20,838 INFO L85 PathProgramCache]: Analyzing trace with hash 940690059, now seen corresponding path program 1 times [2024-09-12 17:59:20,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:20,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418235078] [2024-09-12 17:59:20,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:20,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:21,003 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:21,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:21,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:21,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:21,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418235078] [2024-09-12 17:59:21,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418235078] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:21,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:21,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 17:59:21,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477719096] [2024-09-12 17:59:21,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:21,016 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 17:59:21,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:21,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 17:59:21,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 17:59:21,017 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:21,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:21,054 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2024-09-12 17:59:21,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 17:59:21,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-09-12 17:59:21,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:21,057 INFO L225 Difference]: With dead ends: 56 [2024-09-12 17:59:21,057 INFO L226 Difference]: Without dead ends: 37 [2024-09-12 17:59:21,058 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 17:59:21,059 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:21,061 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:21,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-09-12 17:59:21,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-09-12 17:59:21,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 23 states have (on average 1.434782608695652) internal successors, (33), 31 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:21,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2024-09-12 17:59:21,072 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 12 [2024-09-12 17:59:21,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:21,073 INFO L474 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2024-09-12 17:59:21,073 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:21,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:21,074 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2024-09-12 17:59:21,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-09-12 17:59:21,077 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:21,077 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:21,078 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 17:59:21,078 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:21,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:21,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1882660778, now seen corresponding path program 1 times [2024-09-12 17:59:21,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:21,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618012923] [2024-09-12 17:59:21,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:21,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:21,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:21,193 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:21,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:21,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618012923] [2024-09-12 17:59:21,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618012923] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:21,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776062249] [2024-09-12 17:59:21,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:21,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:21,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:21,196 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:21,198 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 17:59:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:21,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 17:59:21,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:21,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:21,318 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:59:21,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776062249] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:21,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:59:21,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-09-12 17:59:21,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913961942] [2024-09-12 17:59:21,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:21,320 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 17:59:21,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:21,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 17:59:21,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 17:59:21,321 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:21,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:21,369 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2024-09-12 17:59:21,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 17:59:21,372 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-09-12 17:59:21,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:21,373 INFO L225 Difference]: With dead ends: 37 [2024-09-12 17:59:21,373 INFO L226 Difference]: Without dead ends: 36 [2024-09-12 17:59:21,374 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 17:59:21,374 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 5 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:21,375 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 99 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:21,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-09-12 17:59:21,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-09-12 17:59:21,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 23 states have (on average 1.391304347826087) internal successors, (32), 30 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:21,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2024-09-12 17:59:21,385 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 12 [2024-09-12 17:59:21,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:21,386 INFO L474 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2024-09-12 17:59:21,387 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:21,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:21,388 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2024-09-12 17:59:21,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 17:59:21,389 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:21,389 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:21,406 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 17:59:21,589 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:21,590 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:21,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:21,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1767058074, now seen corresponding path program 1 times [2024-09-12 17:59:21,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:21,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641709909] [2024-09-12 17:59:21,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:21,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:21,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:21,657 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:21,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:21,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641709909] [2024-09-12 17:59:21,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641709909] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:21,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318314882] [2024-09-12 17:59:21,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:21,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:21,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:21,660 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:21,666 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 17:59:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:21,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 17:59:21,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:21,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:21,733 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:21,789 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:21,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318314882] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:21,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:21,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-09-12 17:59:21,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371510206] [2024-09-12 17:59:21,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:21,792 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 17:59:21,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:21,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 17:59:21,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-12 17:59:21,795 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:21,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:21,846 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2024-09-12 17:59:21,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 17:59:21,848 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2024-09-12 17:59:21,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:21,850 INFO L225 Difference]: With dead ends: 54 [2024-09-12 17:59:21,850 INFO L226 Difference]: Without dead ends: 53 [2024-09-12 17:59:21,851 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-12 17:59:21,852 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 8 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:21,852 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 139 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:21,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-09-12 17:59:21,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2024-09-12 17:59:21,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 43 states have internal predecessors, (52), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:21,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2024-09-12 17:59:21,868 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 13 [2024-09-12 17:59:21,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:21,869 INFO L474 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2024-09-12 17:59:21,870 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:21,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:21,871 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2024-09-12 17:59:21,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-09-12 17:59:21,871 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:21,871 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:21,889 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:22,072 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:22,072 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:22,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:22,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1055774504, now seen corresponding path program 1 times [2024-09-12 17:59:22,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:22,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504292042] [2024-09-12 17:59:22,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:22,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,130 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:22,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,135 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:22,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:22,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504292042] [2024-09-12 17:59:22,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504292042] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:22,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977281612] [2024-09-12 17:59:22,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:22,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:22,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:22,138 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:22,141 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 17:59:22,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 17:59:22,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:22,235 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:22,236 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:59:22,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977281612] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:22,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:59:22,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-09-12 17:59:22,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206300379] [2024-09-12 17:59:22,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:22,237 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 17:59:22,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:22,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 17:59:22,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 17:59:22,240 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:22,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:22,271 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2024-09-12 17:59:22,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 17:59:22,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2024-09-12 17:59:22,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:22,273 INFO L225 Difference]: With dead ends: 56 [2024-09-12 17:59:22,273 INFO L226 Difference]: Without dead ends: 55 [2024-09-12 17:59:22,273 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 17:59:22,274 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 9 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:22,274 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 68 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:22,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-09-12 17:59:22,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 48. [2024-09-12 17:59:22,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 42 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:22,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2024-09-12 17:59:22,295 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 14 [2024-09-12 17:59:22,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:22,296 INFO L474 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2024-09-12 17:59:22,296 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:22,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:22,296 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2024-09-12 17:59:22,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-09-12 17:59:22,297 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:22,297 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:22,316 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:22,497 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 17:59:22,498 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:22,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:22,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1630728796, now seen corresponding path program 1 times [2024-09-12 17:59:22,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:22,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601480851] [2024-09-12 17:59:22,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:22,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,583 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:22,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:22,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601480851] [2024-09-12 17:59:22,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601480851] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:22,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123816863] [2024-09-12 17:59:22,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:22,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:22,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:22,590 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:22,591 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 17:59:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:22,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 17:59:22,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:22,666 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:22,666 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:22,724 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:22,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123816863] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:22,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:22,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-09-12 17:59:22,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370425608] [2024-09-12 17:59:22,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:22,726 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 17:59:22,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:22,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 17:59:22,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-12 17:59:22,728 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 12 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:22,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:22,791 INFO L93 Difference]: Finished difference Result 75 states and 84 transitions. [2024-09-12 17:59:22,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 17:59:22,794 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-09-12 17:59:22,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:22,795 INFO L225 Difference]: With dead ends: 75 [2024-09-12 17:59:22,795 INFO L226 Difference]: Without dead ends: 74 [2024-09-12 17:59:22,795 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-09-12 17:59:22,796 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 38 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:22,796 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 150 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:22,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-09-12 17:59:22,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 50. [2024-09-12 17:59:22,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 44 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:22,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2024-09-12 17:59:22,812 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 15 [2024-09-12 17:59:22,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:22,813 INFO L474 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2024-09-12 17:59:22,813 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:22,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:22,815 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2024-09-12 17:59:22,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-09-12 17:59:22,816 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:22,816 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:22,830 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:23,017 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:23,017 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:23,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:23,018 INFO L85 PathProgramCache]: Analyzing trace with hash -2004305133, now seen corresponding path program 1 times [2024-09-12 17:59:23,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:23,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311327627] [2024-09-12 17:59:23,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:23,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:23,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:23,096 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:23,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:23,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:23,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311327627] [2024-09-12 17:59:23,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311327627] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:23,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910990436] [2024-09-12 17:59:23,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:23,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:23,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:23,105 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:23,107 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 17:59:23,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:23,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 17:59:23,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:23,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:23,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:59:23,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910990436] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:23,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:59:23,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2024-09-12 17:59:23,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526945614] [2024-09-12 17:59:23,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:23,213 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 17:59:23,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:23,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 17:59:23,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-09-12 17:59:23,214 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:23,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:23,275 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2024-09-12 17:59:23,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 17:59:23,275 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-09-12 17:59:23,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:23,276 INFO L225 Difference]: With dead ends: 63 [2024-09-12 17:59:23,276 INFO L226 Difference]: Without dead ends: 61 [2024-09-12 17:59:23,276 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-09-12 17:59:23,277 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 10 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:23,277 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 129 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:23,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-09-12 17:59:23,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56. [2024-09-12 17:59:23,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 42 states have (on average 1.2619047619047619) internal successors, (53), 49 states have internal predecessors, (53), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 17:59:23,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2024-09-12 17:59:23,292 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 17 [2024-09-12 17:59:23,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:23,292 INFO L474 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2024-09-12 17:59:23,292 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:23,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:23,293 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2024-09-12 17:59:23,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-09-12 17:59:23,293 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:23,294 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:23,307 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:23,494 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-09-12 17:59:23,495 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:23,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:23,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1614036079, now seen corresponding path program 1 times [2024-09-12 17:59:23,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:23,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731272942] [2024-09-12 17:59:23,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:23,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:23,529 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:23,531 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 17:59:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:23,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 17:59:23,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:23,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731272942] [2024-09-12 17:59:23,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731272942] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:23,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 17:59:23,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 17:59:23,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043729914] [2024-09-12 17:59:23,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:23,539 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 17:59:23,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:23,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 17:59:23,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 17:59:23,540 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:23,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:23,562 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2024-09-12 17:59:23,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 17:59:23,563 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2024-09-12 17:59:23,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:23,565 INFO L225 Difference]: With dead ends: 56 [2024-09-12 17:59:23,565 INFO L226 Difference]: Without dead ends: 55 [2024-09-12 17:59:23,565 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 17:59:23,566 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 1 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:23,566 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 72 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:23,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-09-12 17:59:23,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-09-12 17:59:23,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 42 states have (on average 1.2380952380952381) internal successors, (52), 48 states have internal predecessors, (52), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 17:59:23,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2024-09-12 17:59:23,576 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 20 [2024-09-12 17:59:23,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:23,576 INFO L474 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2024-09-12 17:59:23,576 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:23,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:23,577 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2024-09-12 17:59:23,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 17:59:23,577 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:23,578 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:23,578 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 17:59:23,578 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:23,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:23,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1504489174, now seen corresponding path program 1 times [2024-09-12 17:59:23,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:23,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080344641] [2024-09-12 17:59:23,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:23,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:23,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:23,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 17:59:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:23,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:23,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:23,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080344641] [2024-09-12 17:59:23,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080344641] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:23,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477929969] [2024-09-12 17:59:23,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:23,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:23,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:23,667 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:23,670 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 17:59:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:23,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 17:59:23,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:23,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 17:59:23,769 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:59:23,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477929969] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:23,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:59:23,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-09-12 17:59:23,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643377558] [2024-09-12 17:59:23,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:23,770 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 17:59:23,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:23,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 17:59:23,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-09-12 17:59:23,771 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:23,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:23,802 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2024-09-12 17:59:23,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 17:59:23,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2024-09-12 17:59:23,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:23,803 INFO L225 Difference]: With dead ends: 55 [2024-09-12 17:59:23,803 INFO L226 Difference]: Without dead ends: 54 [2024-09-12 17:59:23,804 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-09-12 17:59:23,804 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 6 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:23,805 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 72 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:23,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-09-12 17:59:23,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-09-12 17:59:23,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 42 states have (on average 1.2142857142857142) internal successors, (51), 47 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 17:59:23,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2024-09-12 17:59:23,814 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 21 [2024-09-12 17:59:23,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:23,814 INFO L474 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2024-09-12 17:59:23,814 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:23,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:23,814 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2024-09-12 17:59:23,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-12 17:59:23,815 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:23,815 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:23,833 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 17:59:24,019 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 17:59:24,020 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:24,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:24,021 INFO L85 PathProgramCache]: Analyzing trace with hash -605475789, now seen corresponding path program 1 times [2024-09-12 17:59:24,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:24,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82288489] [2024-09-12 17:59:24,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:24,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,071 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:24,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 17:59:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:24,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:24,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82288489] [2024-09-12 17:59:24,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82288489] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:24,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832255354] [2024-09-12 17:59:24,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:24,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:24,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:24,079 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:24,082 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 17:59:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 17:59:24,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:24,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:24,153 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:59:24,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832255354] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:24,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:59:24,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-09-12 17:59:24,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870994376] [2024-09-12 17:59:24,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:24,155 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 17:59:24,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:24,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 17:59:24,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-12 17:59:24,156 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:24,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:24,202 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2024-09-12 17:59:24,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 17:59:24,202 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2024-09-12 17:59:24,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:24,203 INFO L225 Difference]: With dead ends: 65 [2024-09-12 17:59:24,203 INFO L226 Difference]: Without dead ends: 64 [2024-09-12 17:59:24,203 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-12 17:59:24,204 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 7 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:24,204 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 94 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:24,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-09-12 17:59:24,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 58. [2024-09-12 17:59:24,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 46 states have (on average 1.1956521739130435) internal successors, (55), 50 states have internal predecessors, (55), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 17:59:24,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2024-09-12 17:59:24,227 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 22 [2024-09-12 17:59:24,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:24,227 INFO L474 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2024-09-12 17:59:24,229 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:24,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:24,229 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2024-09-12 17:59:24,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-09-12 17:59:24,230 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:24,230 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:24,249 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 17:59:24,430 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:24,431 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:24,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:24,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1589880200, now seen corresponding path program 1 times [2024-09-12 17:59:24,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:24,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107379616] [2024-09-12 17:59:24,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:24,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,472 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 17:59:24,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:24,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:24,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107379616] [2024-09-12 17:59:24,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107379616] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:24,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760271933] [2024-09-12 17:59:24,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:24,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:24,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:24,481 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:24,482 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 17:59:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:24,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 17:59:24,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:24,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:24,557 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:24,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:24,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760271933] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:24,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:24,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-09-12 17:59:24,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15985129] [2024-09-12 17:59:24,622 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:24,622 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 17:59:24,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:24,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 17:59:24,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-09-12 17:59:24,623 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 17:59:24,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:24,695 INFO L93 Difference]: Finished difference Result 72 states and 80 transitions. [2024-09-12 17:59:24,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 17:59:24,695 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 23 [2024-09-12 17:59:24,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:24,696 INFO L225 Difference]: With dead ends: 72 [2024-09-12 17:59:24,696 INFO L226 Difference]: Without dead ends: 71 [2024-09-12 17:59:24,696 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-09-12 17:59:24,697 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 11 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:24,697 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 177 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:24,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-09-12 17:59:24,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 57. [2024-09-12 17:59:24,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 46 states have (on average 1.173913043478261) internal successors, (54), 49 states have internal predecessors, (54), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 17:59:24,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2024-09-12 17:59:24,710 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 23 [2024-09-12 17:59:24,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:24,710 INFO L474 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2024-09-12 17:59:24,710 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 17:59:24,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:24,711 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2024-09-12 17:59:24,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-12 17:59:24,712 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:24,712 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:24,725 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 17:59:24,913 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:24,913 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:24,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:24,914 INFO L85 PathProgramCache]: Analyzing trace with hash 686966397, now seen corresponding path program 1 times [2024-09-12 17:59:24,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:24,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104290011] [2024-09-12 17:59:24,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:24,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 17:59:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,009 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:25,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:25,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104290011] [2024-09-12 17:59:25,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104290011] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:25,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169286307] [2024-09-12 17:59:25,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:25,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:25,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:25,012 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:25,014 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 17:59:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 17:59:25,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:25,101 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:25,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:25,169 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:25,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169286307] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:25,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:25,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2024-09-12 17:59:25,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327683262] [2024-09-12 17:59:25,170 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:25,170 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 17:59:25,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:25,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 17:59:25,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-09-12 17:59:25,171 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:25,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:25,225 INFO L93 Difference]: Finished difference Result 80 states and 85 transitions. [2024-09-12 17:59:25,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 17:59:25,226 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2024-09-12 17:59:25,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:25,227 INFO L225 Difference]: With dead ends: 80 [2024-09-12 17:59:25,227 INFO L226 Difference]: Without dead ends: 57 [2024-09-12 17:59:25,227 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 53 SyntacticMatches, 6 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-09-12 17:59:25,228 INFO L434 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:25,228 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:25,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-09-12 17:59:25,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-09-12 17:59:25,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 46 states have (on average 1.1521739130434783) internal successors, (53), 49 states have internal predecessors, (53), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 17:59:25,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2024-09-12 17:59:25,236 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 28 [2024-09-12 17:59:25,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:25,237 INFO L474 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2024-09-12 17:59:25,237 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:25,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:25,237 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2024-09-12 17:59:25,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-12 17:59:25,238 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:25,238 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:25,258 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:25,439 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 17:59:25,440 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:25,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:25,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1153409042, now seen corresponding path program 2 times [2024-09-12 17:59:25,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:25,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577429215] [2024-09-12 17:59:25,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:25,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,578 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:25,580 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:25,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:25,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577429215] [2024-09-12 17:59:25,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577429215] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:25,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364594106] [2024-09-12 17:59:25,581 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:25,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:25,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:25,584 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:25,586 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 17:59:25,617 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-12 17:59:25,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:25,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 17:59:25,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:25,665 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-09-12 17:59:25,666 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:25,704 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-09-12 17:59:25,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364594106] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:25,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:25,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 13 [2024-09-12 17:59:25,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730389648] [2024-09-12 17:59:25,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:25,706 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 17:59:25,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:25,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 17:59:25,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-09-12 17:59:25,707 INFO L87 Difference]: Start difference. First operand 57 states and 60 transitions. Second operand has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 14 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:25,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:25,836 INFO L93 Difference]: Finished difference Result 60 states and 65 transitions. [2024-09-12 17:59:25,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 17:59:25,836 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 14 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2024-09-12 17:59:25,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:25,837 INFO L225 Difference]: With dead ends: 60 [2024-09-12 17:59:25,837 INFO L226 Difference]: Without dead ends: 59 [2024-09-12 17:59:25,838 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=456, Unknown=0, NotChecked=0, Total=600 [2024-09-12 17:59:25,838 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 5 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:25,839 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 147 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:25,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-09-12 17:59:25,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 56. [2024-09-12 17:59:25,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.1304347826086956) internal successors, (52), 48 states have internal predecessors, (52), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 17:59:25,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2024-09-12 17:59:25,847 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 28 [2024-09-12 17:59:25,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:25,848 INFO L474 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2024-09-12 17:59:25,848 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 14 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:25,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:25,848 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2024-09-12 17:59:25,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-09-12 17:59:25,850 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:25,850 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:25,867 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-12 17:59:26,050 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 17:59:26,051 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:26,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:26,051 INFO L85 PathProgramCache]: Analyzing trace with hash 324528596, now seen corresponding path program 2 times [2024-09-12 17:59:26,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:26,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783517509] [2024-09-12 17:59:26,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:26,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:26,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:26,190 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:26,193 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:26,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:26,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783517509] [2024-09-12 17:59:26,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783517509] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:26,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227711294] [2024-09-12 17:59:26,194 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:26,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:26,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:26,196 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:26,198 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 17:59:26,239 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:59:26,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:26,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 17:59:26,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:26,288 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:26,288 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:26,448 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:26,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227711294] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:26,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:26,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-09-12 17:59:26,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304346635] [2024-09-12 17:59:26,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:26,449 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 17:59:26,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:26,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 17:59:26,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-09-12 17:59:26,450 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand has 24 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 24 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:26,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:26,545 INFO L93 Difference]: Finished difference Result 135 states and 157 transitions. [2024-09-12 17:59:26,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 17:59:26,546 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 24 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-09-12 17:59:26,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:26,547 INFO L225 Difference]: With dead ends: 135 [2024-09-12 17:59:26,547 INFO L226 Difference]: Without dead ends: 134 [2024-09-12 17:59:26,547 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-09-12 17:59:26,555 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 103 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:26,555 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 175 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:26,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-09-12 17:59:26,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 86. [2024-09-12 17:59:26,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 76 states have (on average 1.1578947368421053) internal successors, (88), 78 states have internal predecessors, (88), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 17:59:26,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 95 transitions. [2024-09-12 17:59:26,569 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 95 transitions. Word has length 30 [2024-09-12 17:59:26,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:26,570 INFO L474 AbstractCegarLoop]: Abstraction has 86 states and 95 transitions. [2024-09-12 17:59:26,570 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 24 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:26,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:26,570 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 95 transitions. [2024-09-12 17:59:26,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-09-12 17:59:26,571 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:26,571 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:26,588 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:26,775 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 17:59:26,776 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:26,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:26,776 INFO L85 PathProgramCache]: Analyzing trace with hash -406378747, now seen corresponding path program 2 times [2024-09-12 17:59:26,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:26,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699435181] [2024-09-12 17:59:26,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:26,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:26,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:26,874 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:26,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 17:59:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:26,882 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:26,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:26,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699435181] [2024-09-12 17:59:26,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699435181] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:26,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828532773] [2024-09-12 17:59:26,885 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:26,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:26,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:26,887 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:26,889 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 17:59:26,926 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:59:26,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:26,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 17:59:26,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:26,996 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:26,997 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:27,111 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:27,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828532773] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:27,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:27,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 14 [2024-09-12 17:59:27,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428088700] [2024-09-12 17:59:27,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:27,112 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 17:59:27,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:27,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 17:59:27,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-09-12 17:59:27,113 INFO L87 Difference]: Start difference. First operand 86 states and 95 transitions. Second operand has 14 states, 14 states have (on average 2.5) internal successors, (35), 12 states have internal predecessors, (35), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:27,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:27,248 INFO L93 Difference]: Finished difference Result 98 states and 107 transitions. [2024-09-12 17:59:27,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 17:59:27,248 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.5) internal successors, (35), 12 states have internal predecessors, (35), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2024-09-12 17:59:27,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:27,249 INFO L225 Difference]: With dead ends: 98 [2024-09-12 17:59:27,249 INFO L226 Difference]: Without dead ends: 96 [2024-09-12 17:59:27,250 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 59 SyntacticMatches, 9 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-09-12 17:59:27,250 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 7 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:27,250 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 235 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:27,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-09-12 17:59:27,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 93. [2024-09-12 17:59:27,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 81 states have (on average 1.1481481481481481) internal successors, (93), 84 states have internal predecessors, (93), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 17:59:27,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 102 transitions. [2024-09-12 17:59:27,264 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 102 transitions. Word has length 33 [2024-09-12 17:59:27,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:27,265 INFO L474 AbstractCegarLoop]: Abstraction has 93 states and 102 transitions. [2024-09-12 17:59:27,265 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5) internal successors, (35), 12 states have internal predecessors, (35), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 17:59:27,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:27,266 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 102 transitions. [2024-09-12 17:59:27,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-12 17:59:27,267 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:27,267 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:27,283 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-12 17:59:27,467 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 17:59:27,468 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:27,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:27,468 INFO L85 PathProgramCache]: Analyzing trace with hash -2031458431, now seen corresponding path program 1 times [2024-09-12 17:59:27,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:27,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925869939] [2024-09-12 17:59:27,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:27,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 17:59:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 17:59:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,555 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 17:59:27,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:27,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925869939] [2024-09-12 17:59:27,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925869939] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:27,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51580314] [2024-09-12 17:59:27,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:27,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:27,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:27,558 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:27,559 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 17:59:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:27,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 17:59:27,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:27,642 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 17:59:27,642 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:27,761 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 17:59:27,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51580314] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:27,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:27,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-09-12 17:59:27,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775211585] [2024-09-12 17:59:27,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:27,762 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 17:59:27,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:27,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 17:59:27,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-09-12 17:59:27,763 INFO L87 Difference]: Start difference. First operand 93 states and 102 transitions. Second operand has 18 states, 17 states have (on average 3.411764705882353) internal successors, (58), 18 states have internal predecessors, (58), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 17:59:27,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:27,846 INFO L93 Difference]: Finished difference Result 112 states and 125 transitions. [2024-09-12 17:59:27,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 17:59:27,847 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.411764705882353) internal successors, (58), 18 states have internal predecessors, (58), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 38 [2024-09-12 17:59:27,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:27,848 INFO L225 Difference]: With dead ends: 112 [2024-09-12 17:59:27,848 INFO L226 Difference]: Without dead ends: 111 [2024-09-12 17:59:27,849 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-09-12 17:59:27,849 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 10 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:27,849 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 157 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:27,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-09-12 17:59:27,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-09-12 17:59:27,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 97 states have (on average 1.1237113402061856) internal successors, (109), 99 states have internal predecessors, (109), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 17:59:27,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 122 transitions. [2024-09-12 17:59:27,865 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 122 transitions. Word has length 38 [2024-09-12 17:59:27,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:27,865 INFO L474 AbstractCegarLoop]: Abstraction has 111 states and 122 transitions. [2024-09-12 17:59:27,865 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.411764705882353) internal successors, (58), 18 states have internal predecessors, (58), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 17:59:27,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:27,866 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 122 transitions. [2024-09-12 17:59:27,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-09-12 17:59:27,868 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:27,868 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:27,886 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-12 17:59:28,068 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 17:59:28,069 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:28,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:28,069 INFO L85 PathProgramCache]: Analyzing trace with hash -50245813, now seen corresponding path program 3 times [2024-09-12 17:59:28,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:28,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265483274] [2024-09-12 17:59:28,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:28,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:28,192 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:28,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:28,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-09-12 17:59:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:28,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 17:59:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:28,209 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 17:59:28,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:28,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265483274] [2024-09-12 17:59:28,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265483274] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:28,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863447636] [2024-09-12 17:59:28,211 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 17:59:28,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:28,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:28,213 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:28,215 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 17:59:28,259 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-12 17:59:28,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:28,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 17:59:28,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:28,327 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 17:59:28,328 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:28,446 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 17:59:28,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863447636] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:28,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:28,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 15 [2024-09-12 17:59:28,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927147079] [2024-09-12 17:59:28,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:28,447 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 17:59:28,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:28,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 17:59:28,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-09-12 17:59:28,448 INFO L87 Difference]: Start difference. First operand 111 states and 122 transitions. Second operand has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 17:59:28,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:28,547 INFO L93 Difference]: Finished difference Result 153 states and 168 transitions. [2024-09-12 17:59:28,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 17:59:28,547 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 44 [2024-09-12 17:59:28,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:28,548 INFO L225 Difference]: With dead ends: 153 [2024-09-12 17:59:28,548 INFO L226 Difference]: Without dead ends: 111 [2024-09-12 17:59:28,549 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 83 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-09-12 17:59:28,549 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:28,549 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 204 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:28,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-09-12 17:59:28,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-09-12 17:59:28,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 97 states have (on average 1.1134020618556701) internal successors, (108), 99 states have internal predecessors, (108), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 17:59:28,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2024-09-12 17:59:28,563 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 121 transitions. Word has length 44 [2024-09-12 17:59:28,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:28,563 INFO L474 AbstractCegarLoop]: Abstraction has 111 states and 121 transitions. [2024-09-12 17:59:28,564 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 17:59:28,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:28,564 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 121 transitions. [2024-09-12 17:59:28,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 17:59:28,565 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:28,565 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:28,582 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-12 17:59:28,769 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 17:59:28,770 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:28,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:28,770 INFO L85 PathProgramCache]: Analyzing trace with hash 273948627, now seen corresponding path program 4 times [2024-09-12 17:59:28,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:28,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382692925] [2024-09-12 17:59:28,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:28,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:28,923 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:28,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 17:59:28,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:28,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 17:59:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:28,931 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 17:59:28,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:28,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382692925] [2024-09-12 17:59:28,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382692925] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:28,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187672142] [2024-09-12 17:59:28,932 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 17:59:28,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:28,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:28,934 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:28,935 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 17:59:28,980 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 17:59:28,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:28,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 17:59:28,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:29,077 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 22 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 17:59:29,078 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:29,209 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 22 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 17:59:29,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187672142] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:29,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:29,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 17 [2024-09-12 17:59:29,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466387344] [2024-09-12 17:59:29,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:29,211 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 17:59:29,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:29,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 17:59:29,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-09-12 17:59:29,212 INFO L87 Difference]: Start difference. First operand 111 states and 121 transitions. Second operand has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 15 states have internal predecessors, (46), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 17:59:29,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:29,350 INFO L93 Difference]: Finished difference Result 117 states and 126 transitions. [2024-09-12 17:59:29,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 17:59:29,350 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 15 states have internal predecessors, (46), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 49 [2024-09-12 17:59:29,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:29,351 INFO L225 Difference]: With dead ends: 117 [2024-09-12 17:59:29,352 INFO L226 Difference]: Without dead ends: 115 [2024-09-12 17:59:29,352 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 92 SyntacticMatches, 11 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-09-12 17:59:29,353 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 7 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:29,353 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 285 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:29,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-09-12 17:59:29,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-09-12 17:59:29,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 100 states have (on average 1.11) internal successors, (111), 102 states have internal predecessors, (111), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 17:59:29,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 124 transitions. [2024-09-12 17:59:29,376 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 124 transitions. Word has length 49 [2024-09-12 17:59:29,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:29,376 INFO L474 AbstractCegarLoop]: Abstraction has 115 states and 124 transitions. [2024-09-12 17:59:29,377 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 15 states have internal predecessors, (46), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 17:59:29,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:29,377 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 124 transitions. [2024-09-12 17:59:29,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-09-12 17:59:29,378 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:29,378 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:29,394 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:29,578 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:29,579 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:29,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:29,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1910740547, now seen corresponding path program 5 times [2024-09-12 17:59:29,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:29,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559685039] [2024-09-12 17:59:29,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:29,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,762 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 17:59:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,767 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 17:59:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,769 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 17:59:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:29,771 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 33 proven. 18 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 17:59:29,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:29,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559685039] [2024-09-12 17:59:29,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559685039] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:29,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834190615] [2024-09-12 17:59:29,772 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 17:59:29,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:29,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:29,774 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:29,775 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 17:59:29,820 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-09-12 17:59:29,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:29,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 17:59:29,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:29,894 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 33 proven. 18 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 17:59:29,894 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:30,071 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 33 proven. 18 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 17:59:30,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834190615] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:30,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:30,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 19 [2024-09-12 17:59:30,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747946621] [2024-09-12 17:59:30,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:30,072 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-12 17:59:30,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:30,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-12 17:59:30,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-09-12 17:59:30,073 INFO L87 Difference]: Start difference. First operand 115 states and 124 transitions. Second operand has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 17:59:30,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:30,191 INFO L93 Difference]: Finished difference Result 157 states and 170 transitions. [2024-09-12 17:59:30,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 17:59:30,191 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 60 [2024-09-12 17:59:30,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:30,193 INFO L225 Difference]: With dead ends: 157 [2024-09-12 17:59:30,193 INFO L226 Difference]: Without dead ends: 115 [2024-09-12 17:59:30,193 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 113 SyntacticMatches, 14 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-09-12 17:59:30,194 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:30,194 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 226 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:30,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-09-12 17:59:30,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-09-12 17:59:30,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 100 states have (on average 1.1) internal successors, (110), 102 states have internal predecessors, (110), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 17:59:30,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 123 transitions. [2024-09-12 17:59:30,209 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 123 transitions. Word has length 60 [2024-09-12 17:59:30,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:30,210 INFO L474 AbstractCegarLoop]: Abstraction has 115 states and 123 transitions. [2024-09-12 17:59:30,210 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 17:59:30,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:30,210 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 123 transitions. [2024-09-12 17:59:30,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-09-12 17:59:30,211 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:30,211 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:30,228 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-09-12 17:59:30,415 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:30,416 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:30,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:30,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1885427500, now seen corresponding path program 3 times [2024-09-12 17:59:30,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:30,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728755004] [2024-09-12 17:59:30,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:30,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:30,765 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:30,768 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:30,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:30,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728755004] [2024-09-12 17:59:30,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728755004] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:30,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047540729] [2024-09-12 17:59:30,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 17:59:30,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:30,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:30,771 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:30,773 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 17:59:30,823 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-09-12 17:59:30,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:30,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 17:59:30,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:30,911 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:30,912 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:31,386 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:31,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047540729] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:31,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:31,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2024-09-12 17:59:31,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678639981] [2024-09-12 17:59:31,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:31,387 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-09-12 17:59:31,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:31,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-09-12 17:59:31,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 17:59:31,389 INFO L87 Difference]: Start difference. First operand 115 states and 123 transitions. Second operand has 48 states, 47 states have (on average 2.5319148936170213) internal successors, (119), 48 states have internal predecessors, (119), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:31,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:31,592 INFO L93 Difference]: Finished difference Result 284 states and 333 transitions. [2024-09-12 17:59:31,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-12 17:59:31,593 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.5319148936170213) internal successors, (119), 48 states have internal predecessors, (119), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2024-09-12 17:59:31,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:31,595 INFO L225 Difference]: With dead ends: 284 [2024-09-12 17:59:31,596 INFO L226 Difference]: Without dead ends: 283 [2024-09-12 17:59:31,596 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 17:59:31,597 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 230 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:31,597 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 312 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:31,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-09-12 17:59:31,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 175. [2024-09-12 17:59:31,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 160 states have (on average 1.1375) internal successors, (182), 162 states have internal predecessors, (182), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 17:59:31,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 195 transitions. [2024-09-12 17:59:31,629 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 195 transitions. Word has length 60 [2024-09-12 17:59:31,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:31,629 INFO L474 AbstractCegarLoop]: Abstraction has 175 states and 195 transitions. [2024-09-12 17:59:31,630 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.5319148936170213) internal successors, (119), 48 states have internal predecessors, (119), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:31,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:31,630 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 195 transitions. [2024-09-12 17:59:31,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 17:59:31,631 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:31,631 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:31,648 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:31,835 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:31,836 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:31,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:31,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1676858811, now seen corresponding path program 6 times [2024-09-12 17:59:31,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:31,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714466073] [2024-09-12 17:59:31,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:31,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:32,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 17:59:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 17:59:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:32,034 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 24 proven. 43 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 17:59:32,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:32,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714466073] [2024-09-12 17:59:32,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714466073] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:32,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570733757] [2024-09-12 17:59:32,034 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 17:59:32,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:32,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:32,036 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:32,040 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 17:59:32,090 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-09-12 17:59:32,090 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:32,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 17:59:32,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:32,201 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 40 proven. 27 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 17:59:32,202 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:32,368 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 40 proven. 27 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 17:59:32,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570733757] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:32,369 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:32,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 20 [2024-09-12 17:59:32,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042752421] [2024-09-12 17:59:32,369 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:32,370 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 17:59:32,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:32,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 17:59:32,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-09-12 17:59:32,371 INFO L87 Difference]: Start difference. First operand 175 states and 195 transitions. Second operand has 20 states, 20 states have (on average 2.85) internal successors, (57), 18 states have internal predecessors, (57), 5 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 17:59:32,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:32,521 INFO L93 Difference]: Finished difference Result 181 states and 200 transitions. [2024-09-12 17:59:32,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 17:59:32,521 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.85) internal successors, (57), 18 states have internal predecessors, (57), 5 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 65 [2024-09-12 17:59:32,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:32,523 INFO L225 Difference]: With dead ends: 181 [2024-09-12 17:59:32,523 INFO L226 Difference]: Without dead ends: 179 [2024-09-12 17:59:32,523 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 123 SyntacticMatches, 15 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-09-12 17:59:32,524 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 10 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:32,524 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 298 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:32,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-09-12 17:59:32,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-09-12 17:59:32,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 163 states have (on average 1.1349693251533743) internal successors, (185), 165 states have internal predecessors, (185), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 17:59:32,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 198 transitions. [2024-09-12 17:59:32,546 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 198 transitions. Word has length 65 [2024-09-12 17:59:32,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:32,546 INFO L474 AbstractCegarLoop]: Abstraction has 179 states and 198 transitions. [2024-09-12 17:59:32,546 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.85) internal successors, (57), 18 states have internal predecessors, (57), 5 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 17:59:32,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:32,547 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 198 transitions. [2024-09-12 17:59:32,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-09-12 17:59:32,547 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:32,548 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:32,561 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-09-12 17:59:32,751 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 17:59:32,752 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:32,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:32,752 INFO L85 PathProgramCache]: Analyzing trace with hash 39109643, now seen corresponding path program 7 times [2024-09-12 17:59:32,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:32,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769483762] [2024-09-12 17:59:32,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:32,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-09-12 17:59:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-09-12 17:59:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-09-12 17:59:33,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 17:59:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,044 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 58 proven. 34 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 17:59:33,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:33,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769483762] [2024-09-12 17:59:33,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769483762] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:33,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040561425] [2024-09-12 17:59:33,045 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 17:59:33,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:33,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:33,047 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:33,049 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 17:59:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-12 17:59:33,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:33,181 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 58 proven. 34 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 17:59:33,181 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:33,374 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 58 proven. 34 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 17:59:33,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040561425] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:33,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:33,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 23 [2024-09-12 17:59:33,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061905428] [2024-09-12 17:59:33,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:33,375 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-12 17:59:33,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:33,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-12 17:59:33,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2024-09-12 17:59:33,376 INFO L87 Difference]: Start difference. First operand 179 states and 198 transitions. Second operand has 23 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 23 states have internal predecessors, (59), 6 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 17:59:33,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:33,500 INFO L93 Difference]: Finished difference Result 223 states and 246 transitions. [2024-09-12 17:59:33,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-12 17:59:33,500 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 23 states have internal predecessors, (59), 6 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 76 [2024-09-12 17:59:33,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:33,501 INFO L225 Difference]: With dead ends: 223 [2024-09-12 17:59:33,501 INFO L226 Difference]: Without dead ends: 179 [2024-09-12 17:59:33,502 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 143 SyntacticMatches, 18 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2024-09-12 17:59:33,502 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:33,502 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 280 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:33,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-09-12 17:59:33,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-09-12 17:59:33,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 163 states have (on average 1.1288343558282208) internal successors, (184), 165 states have internal predecessors, (184), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 17:59:33,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 197 transitions. [2024-09-12 17:59:33,525 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 197 transitions. Word has length 76 [2024-09-12 17:59:33,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:33,525 INFO L474 AbstractCegarLoop]: Abstraction has 179 states and 197 transitions. [2024-09-12 17:59:33,525 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 23 states have internal predecessors, (59), 6 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 17:59:33,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:33,526 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 197 transitions. [2024-09-12 17:59:33,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-09-12 17:59:33,527 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:33,527 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:33,542 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:33,729 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 17:59:33,729 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:33,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:33,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1896051859, now seen corresponding path program 8 times [2024-09-12 17:59:33,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:33,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800627279] [2024-09-12 17:59:33,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:33,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:33,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:33,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:33,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 17:59:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 17:59:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 17:59:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:33,999 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 42 proven. 71 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 17:59:33,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:33,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800627279] [2024-09-12 17:59:33,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800627279] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:33,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801955687] [2024-09-12 17:59:33,999 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:34,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:34,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:34,001 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:34,003 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 17:59:34,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:59:34,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:34,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 17:59:34,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:34,168 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 63 proven. 50 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 17:59:34,169 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:34,378 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 63 proven. 50 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 17:59:34,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801955687] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:34,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:34,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 23 [2024-09-12 17:59:34,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050665822] [2024-09-12 17:59:34,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:34,379 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-12 17:59:34,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:34,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-12 17:59:34,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=428, Unknown=0, NotChecked=0, Total=506 [2024-09-12 17:59:34,380 INFO L87 Difference]: Start difference. First operand 179 states and 197 transitions. Second operand has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 21 states have internal predecessors, (68), 6 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 17:59:34,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:34,531 INFO L93 Difference]: Finished difference Result 191 states and 209 transitions. [2024-09-12 17:59:34,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 17:59:34,531 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 21 states have internal predecessors, (68), 6 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 81 [2024-09-12 17:59:34,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:34,533 INFO L225 Difference]: With dead ends: 191 [2024-09-12 17:59:34,533 INFO L226 Difference]: Without dead ends: 189 [2024-09-12 17:59:34,533 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 152 SyntacticMatches, 21 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2024-09-12 17:59:34,534 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 12 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:34,534 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 306 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:34,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-09-12 17:59:34,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 186. [2024-09-12 17:59:34,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 168 states have (on average 1.125) internal successors, (189), 171 states have internal predecessors, (189), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 17:59:34,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 204 transitions. [2024-09-12 17:59:34,567 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 204 transitions. Word has length 81 [2024-09-12 17:59:34,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:34,567 INFO L474 AbstractCegarLoop]: Abstraction has 186 states and 204 transitions. [2024-09-12 17:59:34,567 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 21 states have internal predecessors, (68), 6 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 17:59:34,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:34,568 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 204 transitions. [2024-09-12 17:59:34,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-09-12 17:59:34,568 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:34,568 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:34,585 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-09-12 17:59:34,772 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 17:59:34,773 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:34,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:34,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1163500877, now seen corresponding path program 2 times [2024-09-12 17:59:34,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:34,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563494188] [2024-09-12 17:59:34,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:34,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,013 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:35,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:35,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,018 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 17:59:35,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 17:59:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 17:59:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 17:59:35,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,028 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 34 proven. 87 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 17:59:35,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:35,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563494188] [2024-09-12 17:59:35,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563494188] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:35,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442872667] [2024-09-12 17:59:35,029 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:35,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:35,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:35,031 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:35,034 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 17:59:35,072 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-12 17:59:35,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:35,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 17:59:35,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:35,105 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-09-12 17:59:35,105 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 17:59:35,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442872667] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 17:59:35,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 17:59:35,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 19 [2024-09-12 17:59:35,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59947791] [2024-09-12 17:59:35,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 17:59:35,106 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 17:59:35,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:35,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 17:59:35,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2024-09-12 17:59:35,107 INFO L87 Difference]: Start difference. First operand 186 states and 204 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 17:59:35,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:35,139 INFO L93 Difference]: Finished difference Result 186 states and 204 transitions. [2024-09-12 17:59:35,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 17:59:35,140 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 86 [2024-09-12 17:59:35,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:35,141 INFO L225 Difference]: With dead ends: 186 [2024-09-12 17:59:35,141 INFO L226 Difference]: Without dead ends: 185 [2024-09-12 17:59:35,141 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2024-09-12 17:59:35,142 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 1 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:35,142 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 85 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 17:59:35,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-09-12 17:59:35,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2024-09-12 17:59:35,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 168 states have (on average 1.119047619047619) internal successors, (188), 170 states have internal predecessors, (188), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 17:59:35,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 203 transitions. [2024-09-12 17:59:35,165 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 203 transitions. Word has length 86 [2024-09-12 17:59:35,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:35,166 INFO L474 AbstractCegarLoop]: Abstraction has 185 states and 203 transitions. [2024-09-12 17:59:35,166 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 17:59:35,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:35,166 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 203 transitions. [2024-09-12 17:59:35,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-09-12 17:59:35,167 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:35,167 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:35,181 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:35,367 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 17:59:35,367 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:35,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:35,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1233951997, now seen corresponding path program 9 times [2024-09-12 17:59:35,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:35,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390910622] [2024-09-12 17:59:35,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:35,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,702 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-09-12 17:59:35,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-09-12 17:59:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,709 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-09-12 17:59:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,711 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-09-12 17:59:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-12 17:59:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:35,714 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 90 proven. 55 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 17:59:35,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:35,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390910622] [2024-09-12 17:59:35,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390910622] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:35,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731604209] [2024-09-12 17:59:35,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 17:59:35,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:35,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:35,717 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:35,718 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 17:59:35,782 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-09-12 17:59:35,782 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:35,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 17:59:35,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:35,876 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 90 proven. 55 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 17:59:35,877 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:36,139 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 90 proven. 55 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 17:59:36,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731604209] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:36,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:36,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 27 [2024-09-12 17:59:36,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281032300] [2024-09-12 17:59:36,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:36,140 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-12 17:59:36,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:36,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-12 17:59:36,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702 [2024-09-12 17:59:36,141 INFO L87 Difference]: Start difference. First operand 185 states and 203 transitions. Second operand has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 27 states have internal predecessors, (70), 7 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 17:59:36,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:36,281 INFO L93 Difference]: Finished difference Result 235 states and 258 transitions. [2024-09-12 17:59:36,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-12 17:59:36,282 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 27 states have internal predecessors, (70), 7 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 92 [2024-09-12 17:59:36,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:36,283 INFO L225 Difference]: With dead ends: 235 [2024-09-12 17:59:36,283 INFO L226 Difference]: Without dead ends: 185 [2024-09-12 17:59:36,284 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 173 SyntacticMatches, 22 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702 [2024-09-12 17:59:36,284 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:36,285 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 317 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:36,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-09-12 17:59:36,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2024-09-12 17:59:36,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 168 states have (on average 1.1130952380952381) internal successors, (187), 170 states have internal predecessors, (187), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 17:59:36,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 202 transitions. [2024-09-12 17:59:36,302 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 202 transitions. Word has length 92 [2024-09-12 17:59:36,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:36,302 INFO L474 AbstractCegarLoop]: Abstraction has 185 states and 202 transitions. [2024-09-12 17:59:36,302 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 27 states have internal predecessors, (70), 7 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 17:59:36,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:36,303 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 202 transitions. [2024-09-12 17:59:36,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-09-12 17:59:36,304 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:36,304 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:36,321 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-09-12 17:59:36,507 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-12 17:59:36,508 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:36,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:36,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1058618757, now seen corresponding path program 10 times [2024-09-12 17:59:36,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:36,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330501287] [2024-09-12 17:59:36,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:36,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:36,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 17:59:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 17:59:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-09-12 17:59:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 17:59:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,832 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 17:59:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:36,834 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 65 proven. 106 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 17:59:36,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:36,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330501287] [2024-09-12 17:59:36,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330501287] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:36,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064541973] [2024-09-12 17:59:36,834 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 17:59:36,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:36,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:36,836 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:36,838 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-09-12 17:59:36,892 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 17:59:36,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:36,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-12 17:59:36,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:37,036 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 91 proven. 80 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 17:59:37,037 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:37,270 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 91 proven. 80 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 17:59:37,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064541973] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:37,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:37,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 26 [2024-09-12 17:59:37,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206804296] [2024-09-12 17:59:37,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:37,271 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-12 17:59:37,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:37,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-12 17:59:37,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=551, Unknown=0, NotChecked=0, Total=650 [2024-09-12 17:59:37,273 INFO L87 Difference]: Start difference. First operand 185 states and 202 transitions. Second operand has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 24 states have internal predecessors, (79), 7 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 17:59:37,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:37,428 INFO L93 Difference]: Finished difference Result 201 states and 218 transitions. [2024-09-12 17:59:37,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 17:59:37,429 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 24 states have internal predecessors, (79), 7 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 97 [2024-09-12 17:59:37,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:37,430 INFO L225 Difference]: With dead ends: 201 [2024-09-12 17:59:37,431 INFO L226 Difference]: Without dead ends: 199 [2024-09-12 17:59:37,431 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 185 SyntacticMatches, 23 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=105, Invalid=597, Unknown=0, NotChecked=0, Total=702 [2024-09-12 17:59:37,431 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 12 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:37,432 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 305 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:37,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-09-12 17:59:37,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 196. [2024-09-12 17:59:37,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 177 states have (on average 1.1073446327683616) internal successors, (196), 179 states have internal predecessors, (196), 9 states have call successors, (9), 9 states have call predecessors, (9), 8 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 17:59:37,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 213 transitions. [2024-09-12 17:59:37,461 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 213 transitions. Word has length 97 [2024-09-12 17:59:37,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:37,463 INFO L474 AbstractCegarLoop]: Abstraction has 196 states and 213 transitions. [2024-09-12 17:59:37,463 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 24 states have internal predecessors, (79), 7 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 17:59:37,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:37,463 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 213 transitions. [2024-09-12 17:59:37,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-09-12 17:59:37,464 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:37,464 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:37,480 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:37,668 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 17:59:37,669 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:37,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:37,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1534601419, now seen corresponding path program 11 times [2024-09-12 17:59:37,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:37,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326045489] [2024-09-12 17:59:37,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:37,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:38,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 17:59:38,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 17:59:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,046 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-09-12 17:59:38,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,048 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 17:59:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,050 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 17:59:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 17:59:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:38,053 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 129 proven. 81 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:38,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:38,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326045489] [2024-09-12 17:59:38,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326045489] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:38,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220063469] [2024-09-12 17:59:38,054 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 17:59:38,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:38,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:38,056 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:38,059 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-09-12 17:59:38,125 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-09-12 17:59:38,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:38,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-12 17:59:38,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:38,250 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 129 proven. 81 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:38,250 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:38,612 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 129 proven. 81 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:38,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220063469] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:38,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:38,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 31 [2024-09-12 17:59:38,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382283619] [2024-09-12 17:59:38,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:38,614 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-09-12 17:59:38,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:38,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-09-12 17:59:38,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=786, Unknown=0, NotChecked=0, Total=930 [2024-09-12 17:59:38,615 INFO L87 Difference]: Start difference. First operand 196 states and 213 transitions. Second operand has 31 states, 31 states have (on average 2.6129032258064515) internal successors, (81), 31 states have internal predecessors, (81), 8 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 17:59:38,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:38,846 INFO L93 Difference]: Finished difference Result 253 states and 276 transitions. [2024-09-12 17:59:38,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-09-12 17:59:38,846 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.6129032258064515) internal successors, (81), 31 states have internal predecessors, (81), 8 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 108 [2024-09-12 17:59:38,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:38,848 INFO L225 Difference]: With dead ends: 253 [2024-09-12 17:59:38,848 INFO L226 Difference]: Without dead ends: 196 [2024-09-12 17:59:38,849 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 203 SyntacticMatches, 26 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 740 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=144, Invalid=786, Unknown=0, NotChecked=0, Total=930 [2024-09-12 17:59:38,849 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:38,849 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 487 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:38,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-09-12 17:59:38,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2024-09-12 17:59:38,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 177 states have (on average 1.1016949152542372) internal successors, (195), 179 states have internal predecessors, (195), 9 states have call successors, (9), 9 states have call predecessors, (9), 8 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 17:59:38,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 212 transitions. [2024-09-12 17:59:38,879 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 212 transitions. Word has length 108 [2024-09-12 17:59:38,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:38,879 INFO L474 AbstractCegarLoop]: Abstraction has 196 states and 212 transitions. [2024-09-12 17:59:38,879 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.6129032258064515) internal successors, (81), 31 states have internal predecessors, (81), 8 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 17:59:38,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:38,880 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 212 transitions. [2024-09-12 17:59:38,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-09-12 17:59:38,881 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:38,881 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:38,897 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:39,085 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 17:59:39,086 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:39,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:39,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1107117741, now seen corresponding path program 12 times [2024-09-12 17:59:39,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:39,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104433950] [2024-09-12 17:59:39,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:39,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 17:59:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-09-12 17:59:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 17:59:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 17:59:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 17:59:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,493 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 17:59:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:39,495 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 93 proven. 148 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:39,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:39,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104433950] [2024-09-12 17:59:39,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104433950] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:39,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315140289] [2024-09-12 17:59:39,495 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 17:59:39,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:39,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:39,497 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:39,498 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-09-12 17:59:39,559 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2024-09-12 17:59:39,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:39,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-12 17:59:39,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:39,700 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 124 proven. 117 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:39,700 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:39,977 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 124 proven. 117 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 17:59:39,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315140289] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:39,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:39,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 29 [2024-09-12 17:59:39,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648443339] [2024-09-12 17:59:39,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:39,979 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-09-12 17:59:39,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:39,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-09-12 17:59:39,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=689, Unknown=0, NotChecked=0, Total=812 [2024-09-12 17:59:39,980 INFO L87 Difference]: Start difference. First operand 196 states and 212 transitions. Second operand has 29 states, 29 states have (on average 3.103448275862069) internal successors, (90), 27 states have internal predecessors, (90), 8 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 17:59:40,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:40,162 INFO L93 Difference]: Finished difference Result 212 states and 228 transitions. [2024-09-12 17:59:40,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-12 17:59:40,162 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.103448275862069) internal successors, (90), 27 states have internal predecessors, (90), 8 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 113 [2024-09-12 17:59:40,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:40,163 INFO L225 Difference]: With dead ends: 212 [2024-09-12 17:59:40,163 INFO L226 Difference]: Without dead ends: 210 [2024-09-12 17:59:40,164 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 216 SyntacticMatches, 27 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=741, Unknown=0, NotChecked=0, Total=870 [2024-09-12 17:59:40,164 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 9 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:40,165 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 378 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:40,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-09-12 17:59:40,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 207. [2024-09-12 17:59:40,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 186 states have (on average 1.096774193548387) internal successors, (204), 188 states have internal predecessors, (204), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:59:40,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 223 transitions. [2024-09-12 17:59:40,185 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 223 transitions. Word has length 113 [2024-09-12 17:59:40,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:40,185 INFO L474 AbstractCegarLoop]: Abstraction has 207 states and 223 transitions. [2024-09-12 17:59:40,185 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.103448275862069) internal successors, (90), 27 states have internal predecessors, (90), 8 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 17:59:40,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:40,186 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 223 transitions. [2024-09-12 17:59:40,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-09-12 17:59:40,187 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:40,187 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:40,202 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-09-12 17:59:40,387 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 17:59:40,387 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:40,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:40,388 INFO L85 PathProgramCache]: Analyzing trace with hash 743891005, now seen corresponding path program 13 times [2024-09-12 17:59:40,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:40,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755057310] [2024-09-12 17:59:40,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:40,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:40,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 17:59:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-09-12 17:59:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 17:59:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 17:59:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 17:59:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 17:59:40,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 17:59:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,880 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 175 proven. 112 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 17:59:40,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:40,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755057310] [2024-09-12 17:59:40,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755057310] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:40,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747194723] [2024-09-12 17:59:40,881 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 17:59:40,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:40,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:40,883 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:40,886 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-09-12 17:59:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:40,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-09-12 17:59:40,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:41,088 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 175 proven. 112 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 17:59:41,088 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:41,451 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 175 proven. 112 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 17:59:41,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747194723] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:41,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:41,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 35 [2024-09-12 17:59:41,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703879025] [2024-09-12 17:59:41,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:41,452 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-09-12 17:59:41,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:41,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-09-12 17:59:41,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1010, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 17:59:41,453 INFO L87 Difference]: Start difference. First operand 207 states and 223 transitions. Second operand has 35 states, 35 states have (on average 2.6285714285714286) internal successors, (92), 35 states have internal predecessors, (92), 9 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 17:59:41,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:41,686 INFO L93 Difference]: Finished difference Result 271 states and 294 transitions. [2024-09-12 17:59:41,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-12 17:59:41,687 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.6285714285714286) internal successors, (92), 35 states have internal predecessors, (92), 9 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 124 [2024-09-12 17:59:41,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:41,689 INFO L225 Difference]: With dead ends: 271 [2024-09-12 17:59:41,689 INFO L226 Difference]: Without dead ends: 207 [2024-09-12 17:59:41,690 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 233 SyntacticMatches, 30 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 978 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=180, Invalid=1010, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 17:59:41,690 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:41,693 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 440 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:41,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-09-12 17:59:41,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2024-09-12 17:59:41,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 186 states have (on average 1.0913978494623655) internal successors, (203), 188 states have internal predecessors, (203), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:59:41,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 222 transitions. [2024-09-12 17:59:41,734 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 222 transitions. Word has length 124 [2024-09-12 17:59:41,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:41,734 INFO L474 AbstractCegarLoop]: Abstraction has 207 states and 222 transitions. [2024-09-12 17:59:41,734 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.6285714285714286) internal successors, (92), 35 states have internal predecessors, (92), 9 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 17:59:41,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:41,734 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 222 transitions. [2024-09-12 17:59:41,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-09-12 17:59:41,735 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:41,736 INFO L216 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:41,752 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:41,939 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:41,940 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:41,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:41,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1663867180, now seen corresponding path program 4 times [2024-09-12 17:59:41,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:41,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146984064] [2024-09-12 17:59:41,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:41,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:42,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:42,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:42,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:42,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146984064] [2024-09-12 17:59:42,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146984064] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:42,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654363321] [2024-09-12 17:59:42,865 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 17:59:42,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:42,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:42,868 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:42,869 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-09-12 17:59:42,938 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 17:59:42,938 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:42,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-09-12 17:59:42,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:43,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:43,072 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:44,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 17:59:44,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654363321] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:44,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:44,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 95 [2024-09-12 17:59:44,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518340034] [2024-09-12 17:59:44,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:44,649 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-09-12 17:59:44,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:44,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-09-12 17:59:44,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2351, Invalid=6769, Unknown=0, NotChecked=0, Total=9120 [2024-09-12 17:59:44,652 INFO L87 Difference]: Start difference. First operand 207 states and 222 transitions. Second operand has 96 states, 95 states have (on average 2.5157894736842104) internal successors, (239), 96 states have internal predecessors, (239), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:45,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:45,093 INFO L93 Difference]: Finished difference Result 556 states and 656 transitions. [2024-09-12 17:59:45,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2024-09-12 17:59:45,094 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 2.5157894736842104) internal successors, (239), 96 states have internal predecessors, (239), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 120 [2024-09-12 17:59:45,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:45,097 INFO L225 Difference]: With dead ends: 556 [2024-09-12 17:59:45,097 INFO L226 Difference]: Without dead ends: 555 [2024-09-12 17:59:45,099 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2823 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2351, Invalid=6769, Unknown=0, NotChecked=0, Total=9120 [2024-09-12 17:59:45,100 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 640 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:45,100 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 471 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:45,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-09-12 17:59:45,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 327. [2024-09-12 17:59:45,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 306 states have (on average 1.1339869281045751) internal successors, (347), 308 states have internal predecessors, (347), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:59:45,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 366 transitions. [2024-09-12 17:59:45,170 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 366 transitions. Word has length 120 [2024-09-12 17:59:45,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:45,171 INFO L474 AbstractCegarLoop]: Abstraction has 327 states and 366 transitions. [2024-09-12 17:59:45,171 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 2.5157894736842104) internal successors, (239), 96 states have internal predecessors, (239), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 17:59:45,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:45,171 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 366 transitions. [2024-09-12 17:59:45,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-09-12 17:59:45,172 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:45,172 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:45,188 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:45,372 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:45,373 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:45,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:45,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1577099067, now seen corresponding path program 14 times [2024-09-12 17:59:45,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:45,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172071777] [2024-09-12 17:59:45,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:45,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:45,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 17:59:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 17:59:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 17:59:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 17:59:45,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 17:59:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,817 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 17:59:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 17:59:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:45,821 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 126 proven. 197 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 17:59:45,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:45,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172071777] [2024-09-12 17:59:45,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172071777] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:45,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861462903] [2024-09-12 17:59:45,821 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:45,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:45,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:45,823 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:45,826 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-09-12 17:59:45,899 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:59:45,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:45,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-09-12 17:59:45,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:46,036 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 162 proven. 161 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 17:59:46,037 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:46,388 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 162 proven. 161 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 17:59:46,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861462903] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:46,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:46,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 32 [2024-09-12 17:59:46,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465092443] [2024-09-12 17:59:46,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:46,389 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-12 17:59:46,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:46,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-12 17:59:46,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=842, Unknown=0, NotChecked=0, Total=992 [2024-09-12 17:59:46,390 INFO L87 Difference]: Start difference. First operand 327 states and 366 transitions. Second operand has 32 states, 32 states have (on average 3.15625) internal successors, (101), 30 states have internal predecessors, (101), 9 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 17:59:46,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:46,608 INFO L93 Difference]: Finished difference Result 343 states and 382 transitions. [2024-09-12 17:59:46,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 17:59:46,609 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.15625) internal successors, (101), 30 states have internal predecessors, (101), 9 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 129 [2024-09-12 17:59:46,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:46,611 INFO L225 Difference]: With dead ends: 343 [2024-09-12 17:59:46,611 INFO L226 Difference]: Without dead ends: 341 [2024-09-12 17:59:46,611 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 245 SyntacticMatches, 33 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 776 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=156, Invalid=900, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 17:59:46,612 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 10 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:46,613 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 334 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 17:59:46,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-09-12 17:59:46,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 338. [2024-09-12 17:59:46,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 315 states have (on average 1.1301587301587301) internal successors, (356), 317 states have internal predecessors, (356), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 17:59:46,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 377 transitions. [2024-09-12 17:59:46,682 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 377 transitions. Word has length 129 [2024-09-12 17:59:46,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:46,682 INFO L474 AbstractCegarLoop]: Abstraction has 338 states and 377 transitions. [2024-09-12 17:59:46,683 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.15625) internal successors, (101), 30 states have internal predecessors, (101), 9 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 17:59:46,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:46,683 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 377 transitions. [2024-09-12 17:59:46,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-09-12 17:59:46,684 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:46,684 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:46,698 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-09-12 17:59:46,884 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:46,885 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:46,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:46,885 INFO L85 PathProgramCache]: Analyzing trace with hash -2099806837, now seen corresponding path program 15 times [2024-09-12 17:59:46,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:46,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869881709] [2024-09-12 17:59:46,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:46,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:47,494 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:47,496 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 17:59:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:47,498 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 17:59:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:47,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 17:59:47,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:47,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 17:59:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:47,502 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 17:59:47,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:47,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 17:59:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:47,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 17:59:47,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:47,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 17:59:47,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:47,509 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 228 proven. 148 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:47,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:47,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869881709] [2024-09-12 17:59:47,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869881709] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:47,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925061482] [2024-09-12 17:59:47,510 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 17:59:47,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:47,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:47,511 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:47,521 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-09-12 17:59:47,593 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-09-12 17:59:47,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:47,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-09-12 17:59:47,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:47,736 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 228 proven. 148 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:47,737 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:48,185 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 228 proven. 148 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:48,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925061482] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:48,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:48,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 39 [2024-09-12 17:59:48,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944605443] [2024-09-12 17:59:48,186 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:48,187 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-09-12 17:59:48,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:48,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-09-12 17:59:48,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=1262, Unknown=0, NotChecked=0, Total=1482 [2024-09-12 17:59:48,188 INFO L87 Difference]: Start difference. First operand 338 states and 377 transitions. Second operand has 39 states, 39 states have (on average 2.641025641025641) internal successors, (103), 39 states have internal predecessors, (103), 10 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:59:48,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:48,406 INFO L93 Difference]: Finished difference Result 409 states and 456 transitions. [2024-09-12 17:59:48,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-09-12 17:59:48,407 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 2.641025641025641) internal successors, (103), 39 states have internal predecessors, (103), 10 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 140 [2024-09-12 17:59:48,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:48,408 INFO L225 Difference]: With dead ends: 409 [2024-09-12 17:59:48,408 INFO L226 Difference]: Without dead ends: 338 [2024-09-12 17:59:48,409 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 263 SyntacticMatches, 34 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1248 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=220, Invalid=1262, Unknown=0, NotChecked=0, Total=1482 [2024-09-12 17:59:48,409 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:48,409 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 478 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:48,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-09-12 17:59:48,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2024-09-12 17:59:48,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 315 states have (on average 1.126984126984127) internal successors, (355), 317 states have internal predecessors, (355), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 17:59:48,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 376 transitions. [2024-09-12 17:59:48,448 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 376 transitions. Word has length 140 [2024-09-12 17:59:48,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:48,448 INFO L474 AbstractCegarLoop]: Abstraction has 338 states and 376 transitions. [2024-09-12 17:59:48,448 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.641025641025641) internal successors, (103), 39 states have internal predecessors, (103), 10 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:59:48,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:48,448 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 376 transitions. [2024-09-12 17:59:48,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-09-12 17:59:48,449 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:48,450 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:48,466 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:48,653 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-09-12 17:59:48,654 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:48,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:48,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1908272659, now seen corresponding path program 16 times [2024-09-12 17:59:48,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:48,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44596669] [2024-09-12 17:59:48,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:48,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:48,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,171 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 17:59:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,175 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 17:59:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 17:59:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,179 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 17:59:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,181 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 17:59:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,183 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 17:59:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,185 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 17:59:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,187 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 17:59:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:49,190 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 164 proven. 253 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:49,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:49,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44596669] [2024-09-12 17:59:49,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44596669] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:49,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130525006] [2024-09-12 17:59:49,191 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 17:59:49,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:49,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:49,193 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:49,196 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-09-12 17:59:49,275 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 17:59:49,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:49,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-09-12 17:59:49,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:49,431 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 205 proven. 212 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:49,431 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:49,812 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 205 proven. 212 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 17:59:49,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130525006] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:49,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:49,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 35 [2024-09-12 17:59:49,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880348825] [2024-09-12 17:59:49,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:49,813 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-09-12 17:59:49,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:49,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-09-12 17:59:49,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1010, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 17:59:49,814 INFO L87 Difference]: Start difference. First operand 338 states and 376 transitions. Second operand has 35 states, 35 states have (on average 3.2) internal successors, (112), 33 states have internal predecessors, (112), 10 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:59:50,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:50,072 INFO L93 Difference]: Finished difference Result 354 states and 392 transitions. [2024-09-12 17:59:50,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-09-12 17:59:50,072 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.2) internal successors, (112), 33 states have internal predecessors, (112), 10 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 145 [2024-09-12 17:59:50,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:50,075 INFO L225 Difference]: With dead ends: 354 [2024-09-12 17:59:50,075 INFO L226 Difference]: Without dead ends: 352 [2024-09-12 17:59:50,075 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 278 SyntacticMatches, 35 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 917 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=186, Invalid=1074, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 17:59:50,076 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 7 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:50,076 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 440 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:50,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-09-12 17:59:50,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 349. [2024-09-12 17:59:50,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 324 states have (on average 1.123456790123457) internal successors, (364), 326 states have internal predecessors, (364), 12 states have call successors, (12), 12 states have call predecessors, (12), 11 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 17:59:50,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 387 transitions. [2024-09-12 17:59:50,124 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 387 transitions. Word has length 145 [2024-09-12 17:59:50,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:50,125 INFO L474 AbstractCegarLoop]: Abstraction has 349 states and 387 transitions. [2024-09-12 17:59:50,125 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.2) internal successors, (112), 33 states have internal predecessors, (112), 10 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 17:59:50,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:50,125 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 387 transitions. [2024-09-12 17:59:50,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-09-12 17:59:50,126 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:50,127 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:50,142 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:50,330 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-09-12 17:59:50,331 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:50,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:50,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1083126653, now seen corresponding path program 17 times [2024-09-12 17:59:50,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:50,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893726367] [2024-09-12 17:59:50,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:50,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:50,953 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:50,955 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-09-12 17:59:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:50,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 17:59:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:50,958 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-09-12 17:59:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:50,959 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 17:59:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:50,961 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 17:59:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:50,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 17:59:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:50,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 17:59:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:50,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 17:59:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:50,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 17:59:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:50,969 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 288 proven. 189 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 17:59:50,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:50,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893726367] [2024-09-12 17:59:50,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893726367] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:50,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220021120] [2024-09-12 17:59:50,970 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 17:59:50,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:50,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:50,972 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:50,973 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-09-12 17:59:51,038 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2024-09-12 17:59:51,038 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:51,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-09-12 17:59:51,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:51,202 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 288 proven. 189 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 17:59:51,202 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:51,689 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 288 proven. 189 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 17:59:51,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220021120] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:51,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:51,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41, 41] total 43 [2024-09-12 17:59:51,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220405034] [2024-09-12 17:59:51,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:51,690 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-09-12 17:59:51,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:51,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-09-12 17:59:51,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=1542, Unknown=0, NotChecked=0, Total=1806 [2024-09-12 17:59:51,692 INFO L87 Difference]: Start difference. First operand 349 states and 387 transitions. Second operand has 43 states, 43 states have (on average 2.6511627906976742) internal successors, (114), 43 states have internal predecessors, (114), 11 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 17:59:52,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:52,010 INFO L93 Difference]: Finished difference Result 427 states and 474 transitions. [2024-09-12 17:59:52,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-09-12 17:59:52,010 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.6511627906976742) internal successors, (114), 43 states have internal predecessors, (114), 11 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 156 [2024-09-12 17:59:52,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:52,013 INFO L225 Difference]: With dead ends: 427 [2024-09-12 17:59:52,013 INFO L226 Difference]: Without dead ends: 349 [2024-09-12 17:59:52,014 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 293 SyntacticMatches, 38 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1550 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=1542, Unknown=0, NotChecked=0, Total=1806 [2024-09-12 17:59:52,014 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:52,015 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 681 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:52,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-09-12 17:59:52,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2024-09-12 17:59:52,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 324 states have (on average 1.1203703703703705) internal successors, (363), 326 states have internal predecessors, (363), 12 states have call successors, (12), 12 states have call predecessors, (12), 11 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 17:59:52,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 386 transitions. [2024-09-12 17:59:52,078 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 386 transitions. Word has length 156 [2024-09-12 17:59:52,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:52,078 INFO L474 AbstractCegarLoop]: Abstraction has 349 states and 386 transitions. [2024-09-12 17:59:52,079 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.6511627906976742) internal successors, (114), 43 states have internal predecessors, (114), 11 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 17:59:52,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:52,079 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 386 transitions. [2024-09-12 17:59:52,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-09-12 17:59:52,080 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:52,080 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:52,097 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:52,280 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-12 17:59:52,281 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:52,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:52,281 INFO L85 PathProgramCache]: Analyzing trace with hash -824994811, now seen corresponding path program 18 times [2024-09-12 17:59:52,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:52,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202988132] [2024-09-12 17:59:52,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:52,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:52,876 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:52,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 17:59:52,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:52,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 17:59:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:52,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 17:59:52,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:52,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 17:59:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:52,883 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 17:59:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:52,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 17:59:52,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:52,886 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 17:59:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:52,887 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-09-12 17:59:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:52,888 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 17:59:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:52,891 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 207 proven. 316 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 17:59:52,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:52,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202988132] [2024-09-12 17:59:52,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202988132] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:52,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422001862] [2024-09-12 17:59:52,892 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 17:59:52,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:52,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:52,894 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:52,895 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-09-12 17:59:52,977 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2024-09-12 17:59:52,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:52,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-09-12 17:59:52,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:53,158 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 253 proven. 270 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 17:59:53,158 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:53,619 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 253 proven. 270 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 17:59:53,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422001862] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:53,619 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:53,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 38 [2024-09-12 17:59:53,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545170499] [2024-09-12 17:59:53,619 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:53,620 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-09-12 17:59:53,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:53,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-09-12 17:59:53,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1193, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 17:59:53,621 INFO L87 Difference]: Start difference. First operand 349 states and 386 transitions. Second operand has 38 states, 38 states have (on average 3.236842105263158) internal successors, (123), 36 states have internal predecessors, (123), 11 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 17:59:53,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:53,861 INFO L93 Difference]: Finished difference Result 365 states and 402 transitions. [2024-09-12 17:59:53,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-09-12 17:59:53,862 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.236842105263158) internal successors, (123), 36 states have internal predecessors, (123), 11 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 161 [2024-09-12 17:59:53,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:53,863 INFO L225 Difference]: With dead ends: 365 [2024-09-12 17:59:53,863 INFO L226 Difference]: Without dead ends: 363 [2024-09-12 17:59:53,864 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 309 SyntacticMatches, 39 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1122 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=219, Invalid=1263, Unknown=0, NotChecked=0, Total=1482 [2024-09-12 17:59:53,864 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 9 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:53,864 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 535 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:53,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-09-12 17:59:53,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 360. [2024-09-12 17:59:53,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 333 states have (on average 1.117117117117117) internal successors, (372), 335 states have internal predecessors, (372), 13 states have call successors, (13), 13 states have call predecessors, (13), 12 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 17:59:53,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 397 transitions. [2024-09-12 17:59:53,921 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 397 transitions. Word has length 161 [2024-09-12 17:59:53,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:53,921 INFO L474 AbstractCegarLoop]: Abstraction has 360 states and 397 transitions. [2024-09-12 17:59:53,921 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.236842105263158) internal successors, (123), 36 states have internal predecessors, (123), 11 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 17:59:53,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:53,922 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 397 transitions. [2024-09-12 17:59:53,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-09-12 17:59:53,922 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:53,923 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:53,938 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:54,123 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-12 17:59:54,123 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:54,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:54,124 INFO L85 PathProgramCache]: Analyzing trace with hash 434029131, now seen corresponding path program 19 times [2024-09-12 17:59:54,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:54,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934337581] [2024-09-12 17:59:54,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:54,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 17:59:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 17:59:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-09-12 17:59:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 17:59:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 17:59:54,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 17:59:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 17:59:54,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,912 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-09-12 17:59:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 17:59:54,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,915 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 17:59:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,917 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 355 proven. 235 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:54,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:54,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934337581] [2024-09-12 17:59:54,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934337581] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:54,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709399816] [2024-09-12 17:59:54,917 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 17:59:54,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:54,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:54,921 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:54,923 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-09-12 17:59:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:54,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-09-12 17:59:54,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:55,126 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 355 proven. 235 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:55,126 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:55,687 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 355 proven. 235 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:55,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709399816] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:55,688 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:55,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45, 45] total 47 [2024-09-12 17:59:55,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231268520] [2024-09-12 17:59:55,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:55,688 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-09-12 17:59:55,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:55,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-09-12 17:59:55,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=1850, Unknown=0, NotChecked=0, Total=2162 [2024-09-12 17:59:55,690 INFO L87 Difference]: Start difference. First operand 360 states and 397 transitions. Second operand has 47 states, 47 states have (on average 2.6595744680851063) internal successors, (125), 47 states have internal predecessors, (125), 12 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 17:59:55,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:55,981 INFO L93 Difference]: Finished difference Result 445 states and 492 transitions. [2024-09-12 17:59:55,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-09-12 17:59:55,982 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 2.6595744680851063) internal successors, (125), 47 states have internal predecessors, (125), 12 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 172 [2024-09-12 17:59:55,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:55,984 INFO L225 Difference]: With dead ends: 445 [2024-09-12 17:59:55,984 INFO L226 Difference]: Without dead ends: 360 [2024-09-12 17:59:55,985 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 323 SyntacticMatches, 42 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1884 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=312, Invalid=1850, Unknown=0, NotChecked=0, Total=2162 [2024-09-12 17:59:55,986 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:55,986 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 733 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:55,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-09-12 17:59:56,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2024-09-12 17:59:56,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 333 states have (on average 1.1141141141141142) internal successors, (371), 335 states have internal predecessors, (371), 13 states have call successors, (13), 13 states have call predecessors, (13), 12 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 17:59:56,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 396 transitions. [2024-09-12 17:59:56,035 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 396 transitions. Word has length 172 [2024-09-12 17:59:56,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:56,035 INFO L474 AbstractCegarLoop]: Abstraction has 360 states and 396 transitions. [2024-09-12 17:59:56,036 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.6595744680851063) internal successors, (125), 47 states have internal predecessors, (125), 12 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 17:59:56,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:56,036 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 396 transitions. [2024-09-12 17:59:56,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-09-12 17:59:56,037 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:56,037 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:56,051 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-09-12 17:59:56,237 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-09-12 17:59:56,238 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:56,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:56,238 INFO L85 PathProgramCache]: Analyzing trace with hash 765530835, now seen corresponding path program 20 times [2024-09-12 17:59:56,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:56,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697862456] [2024-09-12 17:59:56,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:56,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:56,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:56,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 17:59:56,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 17:59:56,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 17:59:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 17:59:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 17:59:56,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:56,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 17:59:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:57,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 17:59:57,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:57,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 17:59:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:57,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-09-12 17:59:57,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:57,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 17:59:57,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:57,009 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 255 proven. 386 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:57,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:57,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697862456] [2024-09-12 17:59:57,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697862456] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:57,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507307837] [2024-09-12 17:59:57,009 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 17:59:57,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:57,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:57,011 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:57,013 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-09-12 17:59:57,081 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 17:59:57,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:57,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-09-12 17:59:57,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:57,277 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 306 proven. 335 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:57,277 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 17:59:57,801 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 306 proven. 335 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 17:59:57,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507307837] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 17:59:57,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 17:59:57,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 41 [2024-09-12 17:59:57,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375249290] [2024-09-12 17:59:57,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 17:59:57,802 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-09-12 17:59:57,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 17:59:57,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-09-12 17:59:57,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=1391, Unknown=0, NotChecked=0, Total=1640 [2024-09-12 17:59:57,803 INFO L87 Difference]: Start difference. First operand 360 states and 396 transitions. Second operand has 41 states, 41 states have (on average 3.268292682926829) internal successors, (134), 39 states have internal predecessors, (134), 12 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 17:59:58,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 17:59:58,070 INFO L93 Difference]: Finished difference Result 376 states and 412 transitions. [2024-09-12 17:59:58,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-09-12 17:59:58,071 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 3.268292682926829) internal successors, (134), 39 states have internal predecessors, (134), 12 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 177 [2024-09-12 17:59:58,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 17:59:58,073 INFO L225 Difference]: With dead ends: 376 [2024-09-12 17:59:58,073 INFO L226 Difference]: Without dead ends: 374 [2024-09-12 17:59:58,074 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 338 SyntacticMatches, 45 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1409 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=255, Invalid=1467, Unknown=0, NotChecked=0, Total=1722 [2024-09-12 17:59:58,074 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 12 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 17:59:58,074 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 553 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 17:59:58,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-09-12 17:59:58,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 371. [2024-09-12 17:59:58,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 342 states have (on average 1.1111111111111112) internal successors, (380), 344 states have internal predecessors, (380), 14 states have call successors, (14), 14 states have call predecessors, (14), 13 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 17:59:58,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 407 transitions. [2024-09-12 17:59:58,129 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 407 transitions. Word has length 177 [2024-09-12 17:59:58,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 17:59:58,129 INFO L474 AbstractCegarLoop]: Abstraction has 371 states and 407 transitions. [2024-09-12 17:59:58,130 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.268292682926829) internal successors, (134), 39 states have internal predecessors, (134), 12 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 17:59:58,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:58,130 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 407 transitions. [2024-09-12 17:59:58,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-09-12 17:59:58,131 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 17:59:58,131 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 17:59:58,148 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-09-12 17:59:58,332 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-09-12 17:59:58,332 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 17:59:58,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 17:59:58,333 INFO L85 PathProgramCache]: Analyzing trace with hash 155817661, now seen corresponding path program 21 times [2024-09-12 17:59:58,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 17:59:58,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418511891] [2024-09-12 17:59:58,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 17:59:58,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 17:59:58,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 17:59:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,227 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 17:59:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-09-12 17:59:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,231 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 17:59:59,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,232 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-09-12 17:59:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,233 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 17:59:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,235 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 17:59:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,236 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 17:59:59,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,237 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 17:59:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,239 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-09-12 17:59:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,241 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 17:59:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 17:59:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 17:59:59,245 INFO L134 CoverageAnalysis]: Checked inductivity of 935 backedges. 429 proven. 286 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 17:59:59,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 17:59:59,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418511891] [2024-09-12 17:59:59,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418511891] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 17:59:59,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370076450] [2024-09-12 17:59:59,245 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 17:59:59,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 17:59:59,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 17:59:59,247 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 17:59:59,249 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-09-12 17:59:59,325 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-09-12 17:59:59,325 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 17:59:59,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-09-12 17:59:59,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 17:59:59,471 INFO L134 CoverageAnalysis]: Checked inductivity of 935 backedges. 429 proven. 286 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 17:59:59,471 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:00,121 INFO L134 CoverageAnalysis]: Checked inductivity of 935 backedges. 429 proven. 286 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 18:00:00,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370076450] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:00,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:00,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 51 [2024-09-12 18:00:00,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850733398] [2024-09-12 18:00:00,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:00,122 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-09-12 18:00:00,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:00,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-09-12 18:00:00,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=364, Invalid=2186, Unknown=0, NotChecked=0, Total=2550 [2024-09-12 18:00:00,123 INFO L87 Difference]: Start difference. First operand 371 states and 407 transitions. Second operand has 51 states, 51 states have (on average 2.6666666666666665) internal successors, (136), 51 states have internal predecessors, (136), 13 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 18:00:00,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:00,412 INFO L93 Difference]: Finished difference Result 463 states and 510 transitions. [2024-09-12 18:00:00,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-09-12 18:00:00,412 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 2.6666666666666665) internal successors, (136), 51 states have internal predecessors, (136), 13 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 188 [2024-09-12 18:00:00,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:00,414 INFO L225 Difference]: With dead ends: 463 [2024-09-12 18:00:00,414 INFO L226 Difference]: Without dead ends: 371 [2024-09-12 18:00:00,414 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 353 SyntacticMatches, 46 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2250 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=364, Invalid=2186, Unknown=0, NotChecked=0, Total=2550 [2024-09-12 18:00:00,415 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:00,415 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 752 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:00:00,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-09-12 18:00:00,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2024-09-12 18:00:00,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 342 states have (on average 1.108187134502924) internal successors, (379), 344 states have internal predecessors, (379), 14 states have call successors, (14), 14 states have call predecessors, (14), 13 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:00:00,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 406 transitions. [2024-09-12 18:00:00,479 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 406 transitions. Word has length 188 [2024-09-12 18:00:00,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:00,479 INFO L474 AbstractCegarLoop]: Abstraction has 371 states and 406 transitions. [2024-09-12 18:00:00,479 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.6666666666666665) internal successors, (136), 51 states have internal predecessors, (136), 13 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 18:00:00,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:00,480 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 406 transitions. [2024-09-12 18:00:00,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-09-12 18:00:00,481 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:00,481 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:00,498 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-09-12 18:00:00,681 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-09-12 18:00:00,682 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:00:00,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:00,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1219090245, now seen corresponding path program 22 times [2024-09-12 18:00:00,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:00,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957818009] [2024-09-12 18:00:00,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:00,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:01,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:01,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:01,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-09-12 18:00:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:01,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:00:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:01,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 18:00:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:01,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 18:00:01,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:01,554 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 18:00:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:01,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 18:00:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:01,557 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:00:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:01,558 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 18:00:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:01,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-09-12 18:00:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:01,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-09-12 18:00:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:01,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-09-12 18:00:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:01,564 INFO L134 CoverageAnalysis]: Checked inductivity of 991 backedges. 308 proven. 463 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 18:00:01,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:01,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957818009] [2024-09-12 18:00:01,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957818009] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:01,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276538431] [2024-09-12 18:00:01,564 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:00:01,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:01,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:01,566 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:01,568 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-09-12 18:00:01,642 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:00:01,642 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:01,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-09-12 18:00:01,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:01,844 INFO L134 CoverageAnalysis]: Checked inductivity of 991 backedges. 363 proven. 438 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-09-12 18:00:01,844 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:02,487 INFO L134 CoverageAnalysis]: Checked inductivity of 991 backedges. 351 proven. 450 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-09-12 18:00:02,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276538431] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:02,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:02,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 42, 42] total 47 [2024-09-12 18:00:02,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806725795] [2024-09-12 18:00:02,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:02,489 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-09-12 18:00:02,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:02,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-09-12 18:00:02,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=1863, Unknown=0, NotChecked=0, Total=2162 [2024-09-12 18:00:02,490 INFO L87 Difference]: Start difference. First operand 371 states and 406 transitions. Second operand has 47 states, 47 states have (on average 3.276595744680851) internal successors, (154), 46 states have internal predecessors, (154), 14 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 12 states have call predecessors, (14), 13 states have call successors, (14) [2024-09-12 18:00:02,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:02,914 INFO L93 Difference]: Finished difference Result 384 states and 419 transitions. [2024-09-12 18:00:02,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-09-12 18:00:02,914 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 3.276595744680851) internal successors, (154), 46 states have internal predecessors, (154), 14 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 12 states have call predecessors, (14), 13 states have call successors, (14) Word has length 193 [2024-09-12 18:00:02,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:02,916 INFO L225 Difference]: With dead ends: 384 [2024-09-12 18:00:02,916 INFO L226 Difference]: Without dead ends: 382 [2024-09-12 18:00:02,916 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 368 SyntacticMatches, 47 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1722 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=307, Invalid=1949, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 18:00:02,917 INFO L434 NwaCegarLoop]: 38 mSDtfsCounter, 11 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:02,917 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 701 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:00:02,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-09-12 18:00:02,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2024-09-12 18:00:02,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 351 states have (on average 1.1054131054131053) internal successors, (388), 353 states have internal predecessors, (388), 15 states have call successors, (15), 15 states have call predecessors, (15), 14 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:00:02,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 417 transitions. [2024-09-12 18:00:02,970 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 417 transitions. Word has length 193 [2024-09-12 18:00:02,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:02,971 INFO L474 AbstractCegarLoop]: Abstraction has 382 states and 417 transitions. [2024-09-12 18:00:02,971 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 3.276595744680851) internal successors, (154), 46 states have internal predecessors, (154), 14 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 12 states have call predecessors, (14), 13 states have call successors, (14) [2024-09-12 18:00:02,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:02,971 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 417 transitions. [2024-09-12 18:00:02,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-09-12 18:00:02,973 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:02,973 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:02,989 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-09-12 18:00:03,173 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-09-12 18:00:03,174 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:00:03,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:03,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1460013301, now seen corresponding path program 23 times [2024-09-12 18:00:03,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:03,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392134714] [2024-09-12 18:00:03,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:03,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:04,195 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:04,197 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-09-12 18:00:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:04,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:00:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:04,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 18:00:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:04,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-09-12 18:00:04,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:04,201 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 18:00:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:04,203 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 18:00:04,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:04,204 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:00:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:04,205 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 18:00:04,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:04,206 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-09-12 18:00:04,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:04,208 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-09-12 18:00:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:04,209 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-09-12 18:00:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:04,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-09-12 18:00:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:04,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1116 backedges. 510 proven. 342 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 18:00:04,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:04,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392134714] [2024-09-12 18:00:04,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392134714] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:04,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482994555] [2024-09-12 18:00:04,213 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:00:04,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:04,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:04,214 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:04,215 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-09-12 18:00:04,297 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2024-09-12 18:00:04,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:04,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-09-12 18:00:04,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:04,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1116 backedges. 510 proven. 342 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 18:00:04,464 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:05,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1116 backedges. 510 proven. 342 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 18:00:05,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482994555] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:05,303 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:05,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 55 [2024-09-12 18:00:05,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752137865] [2024-09-12 18:00:05,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:05,304 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-09-12 18:00:05,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:05,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-09-12 18:00:05,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=420, Invalid=2550, Unknown=0, NotChecked=0, Total=2970 [2024-09-12 18:00:05,306 INFO L87 Difference]: Start difference. First operand 382 states and 417 transitions. Second operand has 55 states, 55 states have (on average 2.672727272727273) internal successors, (147), 55 states have internal predecessors, (147), 14 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:00:05,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:05,764 INFO L93 Difference]: Finished difference Result 481 states and 528 transitions. [2024-09-12 18:00:05,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-09-12 18:00:05,765 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 2.672727272727273) internal successors, (147), 55 states have internal predecessors, (147), 14 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 204 [2024-09-12 18:00:05,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:05,767 INFO L225 Difference]: With dead ends: 481 [2024-09-12 18:00:05,767 INFO L226 Difference]: Without dead ends: 382 [2024-09-12 18:00:05,768 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 383 SyntacticMatches, 50 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2648 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=420, Invalid=2550, Unknown=0, NotChecked=0, Total=2970 [2024-09-12 18:00:05,768 INFO L434 NwaCegarLoop]: 60 mSDtfsCounter, 0 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:05,768 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1201 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:00:05,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-09-12 18:00:05,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2024-09-12 18:00:05,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 351 states have (on average 1.1025641025641026) internal successors, (387), 353 states have internal predecessors, (387), 15 states have call successors, (15), 15 states have call predecessors, (15), 14 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:00:05,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 416 transitions. [2024-09-12 18:00:05,852 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 416 transitions. Word has length 204 [2024-09-12 18:00:05,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:05,852 INFO L474 AbstractCegarLoop]: Abstraction has 382 states and 416 transitions. [2024-09-12 18:00:05,853 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 2.672727272727273) internal successors, (147), 55 states have internal predecessors, (147), 14 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:00:05,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:05,853 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 416 transitions. [2024-09-12 18:00:05,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-09-12 18:00:05,855 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:05,855 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:05,872 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-09-12 18:00:06,055 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,38 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:06,056 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:00:06,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:06,056 INFO L85 PathProgramCache]: Analyzing trace with hash 2048403347, now seen corresponding path program 24 times [2024-09-12 18:00:06,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:06,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996783104] [2024-09-12 18:00:06,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:06,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:06,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:06,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 18:00:06,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:06,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:00:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:06,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:00:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:06,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 18:00:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:06,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 18:00:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:06,970 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 18:00:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:06,971 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 18:00:06,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:06,972 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-09-12 18:00:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:06,974 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:00:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:06,975 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-09-12 18:00:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:06,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 18:00:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:06,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-09-12 18:00:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:06,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 366 proven. 547 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 18:00:06,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:06,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996783104] [2024-09-12 18:00:06,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996783104] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:06,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800651539] [2024-09-12 18:00:06,979 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:00:06,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:06,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:06,981 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:06,982 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-09-12 18:00:07,072 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2024-09-12 18:00:07,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:07,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-09-12 18:00:07,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:07,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 427 proven. 486 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 18:00:07,273 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:07,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 427 proven. 486 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 18:00:07,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800651539] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:07,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:07,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 43] total 47 [2024-09-12 18:00:07,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127217788] [2024-09-12 18:00:07,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:07,948 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-09-12 18:00:07,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:07,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-09-12 18:00:07,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=1832, Unknown=0, NotChecked=0, Total=2162 [2024-09-12 18:00:07,950 INFO L87 Difference]: Start difference. First operand 382 states and 416 transitions. Second operand has 47 states, 47 states have (on average 3.3191489361702127) internal successors, (156), 45 states have internal predecessors, (156), 14 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:00:08,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:08,265 INFO L93 Difference]: Finished difference Result 398 states and 432 transitions. [2024-09-12 18:00:08,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-09-12 18:00:08,265 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 3.3191489361702127) internal successors, (156), 45 states have internal predecessors, (156), 14 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 209 [2024-09-12 18:00:08,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:08,268 INFO L225 Difference]: With dead ends: 398 [2024-09-12 18:00:08,268 INFO L226 Difference]: Without dead ends: 396 [2024-09-12 18:00:08,268 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 402 SyntacticMatches, 51 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1857 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=336, Invalid=1920, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 18:00:08,269 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 10 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:08,271 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 557 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:00:08,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-09-12 18:00:08,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 393. [2024-09-12 18:00:08,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 360 states have (on average 1.1) internal successors, (396), 362 states have internal predecessors, (396), 16 states have call successors, (16), 16 states have call predecessors, (16), 15 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 18:00:08,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 427 transitions. [2024-09-12 18:00:08,338 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 427 transitions. Word has length 209 [2024-09-12 18:00:08,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:08,338 INFO L474 AbstractCegarLoop]: Abstraction has 393 states and 427 transitions. [2024-09-12 18:00:08,338 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 3.3191489361702127) internal successors, (156), 45 states have internal predecessors, (156), 14 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:00:08,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:08,339 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 427 transitions. [2024-09-12 18:00:08,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-09-12 18:00:08,340 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:08,340 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:08,358 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-09-12 18:00:08,541 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,39 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:08,541 INFO L399 AbstractCegarLoop]: === Iteration 43 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:00:08,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:08,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1030092291, now seen corresponding path program 25 times [2024-09-12 18:00:08,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:08,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064569554] [2024-09-12 18:00:08,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:08,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:09,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:09,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:09,734 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 18:00:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:09,736 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-09-12 18:00:09,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:09,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:00:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:09,739 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 18:00:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:09,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 18:00:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:09,742 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 18:00:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:09,743 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 18:00:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:09,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-09-12 18:00:09,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:09,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:00:09,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:09,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-09-12 18:00:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:09,750 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 18:00:09,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:09,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-09-12 18:00:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:09,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 18:00:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:09,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1313 backedges. 598 proven. 403 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 18:00:09,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:09,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064569554] [2024-09-12 18:00:09,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064569554] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:09,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58541846] [2024-09-12 18:00:09,756 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 18:00:09,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:09,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:09,757 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:09,758 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-09-12 18:00:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:09,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-09-12 18:00:09,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:10,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1313 backedges. 598 proven. 403 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 18:00:10,014 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:10,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1313 backedges. 598 proven. 403 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 18:00:10,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58541846] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:10,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:10,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57, 57] total 59 [2024-09-12 18:00:10,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383456932] [2024-09-12 18:00:10,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:10,865 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2024-09-12 18:00:10,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:10,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2024-09-12 18:00:10,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=480, Invalid=2942, Unknown=0, NotChecked=0, Total=3422 [2024-09-12 18:00:10,866 INFO L87 Difference]: Start difference. First operand 393 states and 427 transitions. Second operand has 59 states, 59 states have (on average 2.6779661016949152) internal successors, (158), 59 states have internal predecessors, (158), 15 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:00:11,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:11,258 INFO L93 Difference]: Finished difference Result 499 states and 546 transitions. [2024-09-12 18:00:11,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-09-12 18:00:11,258 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 2.6779661016949152) internal successors, (158), 59 states have internal predecessors, (158), 15 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 220 [2024-09-12 18:00:11,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:11,261 INFO L225 Difference]: With dead ends: 499 [2024-09-12 18:00:11,261 INFO L226 Difference]: Without dead ends: 393 [2024-09-12 18:00:11,261 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 413 SyntacticMatches, 54 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3078 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=480, Invalid=2942, Unknown=0, NotChecked=0, Total=3422 [2024-09-12 18:00:11,262 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:11,262 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 976 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:00:11,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-09-12 18:00:11,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-09-12 18:00:11,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 360 states have (on average 1.0972222222222223) internal successors, (395), 362 states have internal predecessors, (395), 16 states have call successors, (16), 16 states have call predecessors, (16), 15 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 18:00:11,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 426 transitions. [2024-09-12 18:00:11,314 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 426 transitions. Word has length 220 [2024-09-12 18:00:11,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:11,314 INFO L474 AbstractCegarLoop]: Abstraction has 393 states and 426 transitions. [2024-09-12 18:00:11,314 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 2.6779661016949152) internal successors, (158), 59 states have internal predecessors, (158), 15 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:00:11,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:11,315 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 426 transitions. [2024-09-12 18:00:11,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-09-12 18:00:11,316 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:11,316 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:11,336 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-09-12 18:00:11,517 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,40 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:11,517 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:00:11,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:11,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1268132485, now seen corresponding path program 26 times [2024-09-12 18:00:11,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:11,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417185731] [2024-09-12 18:00:11,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:11,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:12,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:12,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:00:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:12,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 18:00:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:12,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 18:00:12,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:12,671 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 18:00:12,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:12,672 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 18:00:12,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:12,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 18:00:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:12,674 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 18:00:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:12,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 18:00:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:12,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 18:00:12,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:12,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-09-12 18:00:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:12,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-09-12 18:00:12,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:12,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-09-12 18:00:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:12,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-09-12 18:00:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:12,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1379 backedges. 429 proven. 638 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 18:00:12,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:12,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417185731] [2024-09-12 18:00:12,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417185731] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:12,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620439826] [2024-09-12 18:00:12,682 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:00:12,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:12,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:12,684 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:12,685 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-09-12 18:00:12,771 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:00:12,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:12,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-09-12 18:00:12,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:12,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1379 backedges. 495 proven. 572 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 18:00:12,985 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:13,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1379 backedges. 495 proven. 572 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 18:00:13,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620439826] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:13,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:13,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 50 [2024-09-12 18:00:13,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081801897] [2024-09-12 18:00:13,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:13,775 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-09-12 18:00:13,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:13,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-09-12 18:00:13,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=375, Invalid=2075, Unknown=0, NotChecked=0, Total=2450 [2024-09-12 18:00:13,777 INFO L87 Difference]: Start difference. First operand 393 states and 426 transitions. Second operand has 50 states, 50 states have (on average 3.34) internal successors, (167), 48 states have internal predecessors, (167), 15 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:00:14,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:14,130 INFO L93 Difference]: Finished difference Result 409 states and 442 transitions. [2024-09-12 18:00:14,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-12 18:00:14,131 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 3.34) internal successors, (167), 48 states have internal predecessors, (167), 15 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 225 [2024-09-12 18:00:14,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:14,134 INFO L225 Difference]: With dead ends: 409 [2024-09-12 18:00:14,135 INFO L226 Difference]: Without dead ends: 407 [2024-09-12 18:00:14,135 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 431 SyntacticMatches, 57 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2222 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=381, Invalid=2169, Unknown=0, NotChecked=0, Total=2550 [2024-09-12 18:00:14,136 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 9 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:14,136 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 579 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:00:14,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-09-12 18:00:14,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 404. [2024-09-12 18:00:14,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 369 states have (on average 1.094850948509485) internal successors, (404), 371 states have internal predecessors, (404), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:00:14,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 437 transitions. [2024-09-12 18:00:14,239 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 437 transitions. Word has length 225 [2024-09-12 18:00:14,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:14,239 INFO L474 AbstractCegarLoop]: Abstraction has 404 states and 437 transitions. [2024-09-12 18:00:14,240 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 3.34) internal successors, (167), 48 states have internal predecessors, (167), 15 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:00:14,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:14,240 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 437 transitions. [2024-09-12 18:00:14,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-09-12 18:00:14,242 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:14,242 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:14,261 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-09-12 18:00:14,442 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-09-12 18:00:14,443 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:00:14,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:14,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1603607499, now seen corresponding path program 27 times [2024-09-12 18:00:14,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:14,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875902717] [2024-09-12 18:00:14,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:14,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:15,751 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:15,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:00:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:15,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 18:00:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:15,755 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 18:00:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:15,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 18:00:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:15,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-09-12 18:00:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:15,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 18:00:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:15,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 18:00:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:15,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 18:00:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:15,762 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 18:00:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:15,763 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-09-12 18:00:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:15,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-09-12 18:00:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:15,765 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-09-12 18:00:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:15,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-09-12 18:00:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:15,768 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-09-12 18:00:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:15,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1526 backedges. 693 proven. 469 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:00:15,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:15,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875902717] [2024-09-12 18:00:15,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875902717] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:15,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99447448] [2024-09-12 18:00:15,770 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:00:15,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:15,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:15,771 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:15,772 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-09-12 18:00:15,869 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-09-12 18:00:15,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:15,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-09-12 18:00:15,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:16,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1526 backedges. 693 proven. 469 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:00:16,059 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:17,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1526 backedges. 693 proven. 469 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:00:17,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99447448] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:17,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:17,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61, 61] total 63 [2024-09-12 18:00:17,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404031174] [2024-09-12 18:00:17,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:17,011 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-09-12 18:00:17,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:17,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-09-12 18:00:17,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=544, Invalid=3362, Unknown=0, NotChecked=0, Total=3906 [2024-09-12 18:00:17,012 INFO L87 Difference]: Start difference. First operand 404 states and 437 transitions. Second operand has 63 states, 63 states have (on average 2.6825396825396823) internal successors, (169), 63 states have internal predecessors, (169), 16 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 18:00:17,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:17,385 INFO L93 Difference]: Finished difference Result 517 states and 564 transitions. [2024-09-12 18:00:17,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-09-12 18:00:17,386 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 2.6825396825396823) internal successors, (169), 63 states have internal predecessors, (169), 16 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 236 [2024-09-12 18:00:17,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:17,389 INFO L225 Difference]: With dead ends: 517 [2024-09-12 18:00:17,389 INFO L226 Difference]: Without dead ends: 404 [2024-09-12 18:00:17,390 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 443 SyntacticMatches, 58 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3540 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=544, Invalid=3362, Unknown=0, NotChecked=0, Total=3906 [2024-09-12 18:00:17,390 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:17,390 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 792 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:00:17,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-09-12 18:00:17,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2024-09-12 18:00:17,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 369 states have (on average 1.0921409214092141) internal successors, (403), 371 states have internal predecessors, (403), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:00:17,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 436 transitions. [2024-09-12 18:00:17,447 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 436 transitions. Word has length 236 [2024-09-12 18:00:17,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:17,447 INFO L474 AbstractCegarLoop]: Abstraction has 404 states and 436 transitions. [2024-09-12 18:00:17,447 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 2.6825396825396823) internal successors, (169), 63 states have internal predecessors, (169), 16 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 18:00:17,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:17,448 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 436 transitions. [2024-09-12 18:00:17,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2024-09-12 18:00:17,449 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:17,449 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:17,467 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-09-12 18:00:17,650 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,42 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:17,650 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:00:17,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:17,651 INFO L85 PathProgramCache]: Analyzing trace with hash -2037437357, now seen corresponding path program 28 times [2024-09-12 18:00:17,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:17,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437076022] [2024-09-12 18:00:17,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:17,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:18,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:18,674 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 18:00:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:18,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-09-12 18:00:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:18,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:00:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:18,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-09-12 18:00:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:18,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 18:00:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:18,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 18:00:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:18,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 18:00:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:18,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 18:00:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:18,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 18:00:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:18,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 18:00:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:18,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 18:00:18,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:18,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 18:00:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:18,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-09-12 18:00:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:18,690 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-09-12 18:00:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:18,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1597 backedges. 497 proven. 736 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:00:18,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:18,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437076022] [2024-09-12 18:00:18,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437076022] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:18,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679071003] [2024-09-12 18:00:18,692 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:00:18,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:18,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:18,693 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:18,694 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-09-12 18:00:18,781 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:00:18,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:18,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 70 conjuncts are in the unsatisfiable core [2024-09-12 18:00:18,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:19,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1597 backedges. 573 proven. 699 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-09-12 18:00:19,043 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:20,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1597 backedges. 573 proven. 699 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-09-12 18:00:20,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679071003] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:20,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:20,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 51, 51] total 56 [2024-09-12 18:00:20,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698471822] [2024-09-12 18:00:20,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:20,014 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-09-12 18:00:20,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:20,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-09-12 18:00:20,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=436, Invalid=2644, Unknown=0, NotChecked=0, Total=3080 [2024-09-12 18:00:20,015 INFO L87 Difference]: Start difference. First operand 404 states and 436 transitions. Second operand has 56 states, 56 states have (on average 3.3035714285714284) internal successors, (185), 55 states have internal predecessors, (185), 17 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (17), 15 states have call predecessors, (17), 16 states have call successors, (17) [2024-09-12 18:00:20,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:20,410 INFO L93 Difference]: Finished difference Result 417 states and 449 transitions. [2024-09-12 18:00:20,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-09-12 18:00:20,410 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 3.3035714285714284) internal successors, (185), 55 states have internal predecessors, (185), 17 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (17), 15 states have call predecessors, (17), 16 states have call successors, (17) Word has length 241 [2024-09-12 18:00:20,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:20,412 INFO L225 Difference]: With dead ends: 417 [2024-09-12 18:00:20,412 INFO L226 Difference]: Without dead ends: 415 [2024-09-12 18:00:20,413 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 461 SyntacticMatches, 59 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2620 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=444, Invalid=2748, Unknown=0, NotChecked=0, Total=3192 [2024-09-12 18:00:20,413 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 7 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:20,413 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 715 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:00:20,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-09-12 18:00:20,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2024-09-12 18:00:20,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 378 states have (on average 1.08994708994709) internal successors, (412), 380 states have internal predecessors, (412), 18 states have call successors, (18), 18 states have call predecessors, (18), 17 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 18:00:20,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 447 transitions. [2024-09-12 18:00:20,482 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 447 transitions. Word has length 241 [2024-09-12 18:00:20,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:20,483 INFO L474 AbstractCegarLoop]: Abstraction has 415 states and 447 transitions. [2024-09-12 18:00:20,483 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 3.3035714285714284) internal successors, (185), 55 states have internal predecessors, (185), 17 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (17), 15 states have call predecessors, (17), 16 states have call successors, (17) [2024-09-12 18:00:20,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:20,483 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 447 transitions. [2024-09-12 18:00:20,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-09-12 18:00:20,485 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:20,485 INFO L216 NwaCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:20,506 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-09-12 18:00:20,686 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,43 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:20,686 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:00:20,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:20,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1584100035, now seen corresponding path program 29 times [2024-09-12 18:00:20,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:20,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731141856] [2024-09-12 18:00:20,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:20,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:22,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:22,117 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 18:00:22,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:22,119 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-09-12 18:00:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:22,120 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:00:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:22,122 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-09-12 18:00:22,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:22,124 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-09-12 18:00:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:22,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 18:00:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:22,127 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 18:00:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:22,129 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 18:00:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:22,130 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 18:00:22,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:22,132 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 18:00:22,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:22,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 18:00:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:22,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 18:00:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:22,137 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-09-12 18:00:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:22,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-09-12 18:00:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:22,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-09-12 18:00:22,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:22,142 INFO L134 CoverageAnalysis]: Checked inductivity of 1755 backedges. 795 proven. 540 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 18:00:22,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:22,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731141856] [2024-09-12 18:00:22,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731141856] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:22,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024325000] [2024-09-12 18:00:22,143 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:00:22,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:22,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:22,146 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:22,147 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-09-12 18:00:22,276 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2024-09-12 18:00:22,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:22,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-09-12 18:00:22,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:22,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1755 backedges. 795 proven. 540 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 18:00:22,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:23,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1755 backedges. 795 proven. 540 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 18:00:23,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024325000] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:23,619 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:23,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 67 [2024-09-12 18:00:23,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886993831] [2024-09-12 18:00:23,619 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:23,620 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-09-12 18:00:23,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:23,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-09-12 18:00:23,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=612, Invalid=3810, Unknown=0, NotChecked=0, Total=4422 [2024-09-12 18:00:23,622 INFO L87 Difference]: Start difference. First operand 415 states and 447 transitions. Second operand has 67 states, 67 states have (on average 2.6865671641791047) internal successors, (180), 67 states have internal predecessors, (180), 17 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:00:24,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:24,106 INFO L93 Difference]: Finished difference Result 535 states and 582 transitions. [2024-09-12 18:00:24,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2024-09-12 18:00:24,106 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 2.6865671641791047) internal successors, (180), 67 states have internal predecessors, (180), 17 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Word has length 252 [2024-09-12 18:00:24,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:24,108 INFO L225 Difference]: With dead ends: 535 [2024-09-12 18:00:24,108 INFO L226 Difference]: Without dead ends: 415 [2024-09-12 18:00:24,109 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 473 SyntacticMatches, 62 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4034 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=612, Invalid=3810, Unknown=0, NotChecked=0, Total=4422 [2024-09-12 18:00:24,110 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:24,110 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1061 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:00:24,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-09-12 18:00:24,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2024-09-12 18:00:24,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 378 states have (on average 1.0873015873015872) internal successors, (411), 380 states have internal predecessors, (411), 18 states have call successors, (18), 18 states have call predecessors, (18), 17 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 18:00:24,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 446 transitions. [2024-09-12 18:00:24,177 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 446 transitions. Word has length 252 [2024-09-12 18:00:24,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:24,177 INFO L474 AbstractCegarLoop]: Abstraction has 415 states and 446 transitions. [2024-09-12 18:00:24,178 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.6865671641791047) internal successors, (180), 67 states have internal predecessors, (180), 17 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:00:24,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:24,178 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 446 transitions. [2024-09-12 18:00:24,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-09-12 18:00:24,180 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:24,180 INFO L216 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:24,198 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-09-12 18:00:24,383 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-09-12 18:00:24,384 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:00:24,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:24,385 INFO L85 PathProgramCache]: Analyzing trace with hash -602283308, now seen corresponding path program 5 times [2024-09-12 18:00:24,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:24,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986261842] [2024-09-12 18:00:24,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:24,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:24,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:27,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:27,426 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:00:27,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:27,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986261842] [2024-09-12 18:00:27,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986261842] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:27,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288470915] [2024-09-12 18:00:27,426 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:00:27,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:27,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:27,428 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:27,429 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-09-12 18:00:27,554 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-09-12 18:00:27,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:27,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-09-12 18:00:27,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:27,796 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:00:27,796 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:33,640 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:00:33,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288470915] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:33,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:33,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 191 [2024-09-12 18:00:33,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990858187] [2024-09-12 18:00:33,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:33,642 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2024-09-12 18:00:33,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:33,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2024-09-12 18:00:33,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9311, Invalid=27361, Unknown=0, NotChecked=0, Total=36672 [2024-09-12 18:00:33,648 INFO L87 Difference]: Start difference. First operand 415 states and 446 transitions. Second operand has 192 states, 191 states have (on average 2.507853403141361) internal successors, (479), 192 states have internal predecessors, (479), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:00:35,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:35,416 INFO L93 Difference]: Finished difference Result 1124 states and 1328 transitions. [2024-09-12 18:00:35,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2024-09-12 18:00:35,416 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 2.507853403141361) internal successors, (479), 192 states have internal predecessors, (479), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 240 [2024-09-12 18:00:35,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:35,420 INFO L225 Difference]: With dead ends: 1124 [2024-09-12 18:00:35,420 INFO L226 Difference]: Without dead ends: 1123 [2024-09-12 18:00:35,422 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11415 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=9311, Invalid=27361, Unknown=0, NotChecked=0, Total=36672 [2024-09-12 18:00:35,422 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 1253 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:35,422 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1331 Valid, 922 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:00:35,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2024-09-12 18:00:35,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 655. [2024-09-12 18:00:35,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 618 states have (on average 1.1310679611650485) internal successors, (699), 620 states have internal predecessors, (699), 18 states have call successors, (18), 18 states have call predecessors, (18), 17 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 18:00:35,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 734 transitions. [2024-09-12 18:00:35,514 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 734 transitions. Word has length 240 [2024-09-12 18:00:35,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:35,514 INFO L474 AbstractCegarLoop]: Abstraction has 655 states and 734 transitions. [2024-09-12 18:00:35,514 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 2.507853403141361) internal successors, (479), 192 states have internal predecessors, (479), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:00:35,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:35,515 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 734 transitions. [2024-09-12 18:00:35,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-09-12 18:00:35,516 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:35,516 INFO L216 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:35,532 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-09-12 18:00:35,716 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-09-12 18:00:35,717 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:00:35,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:35,717 INFO L85 PathProgramCache]: Analyzing trace with hash 212635077, now seen corresponding path program 30 times [2024-09-12 18:00:35,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:35,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920070553] [2024-09-12 18:00:35,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:35,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:36,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:36,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:00:36,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:36,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 18:00:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:36,858 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 18:00:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:36,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 18:00:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:36,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 18:00:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:36,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 18:00:36,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:36,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 18:00:36,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:36,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-09-12 18:00:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:36,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-09-12 18:00:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:36,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:00:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:36,868 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-09-12 18:00:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:36,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 18:00:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:36,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-09-12 18:00:36,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:36,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-09-12 18:00:36,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:36,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 18:00:36,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:36,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1831 backedges. 570 proven. 841 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 18:00:36,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:36,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920070553] [2024-09-12 18:00:36,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920070553] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:36,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503823879] [2024-09-12 18:00:36,876 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:00:36,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:36,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:36,877 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:36,878 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-09-12 18:00:36,976 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2024-09-12 18:00:36,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:36,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 69 conjuncts are in the unsatisfiable core [2024-09-12 18:00:36,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:37,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1831 backedges. 646 proven. 765 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 18:00:37,240 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:38,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1831 backedges. 646 proven. 765 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 18:00:38,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503823879] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:38,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:38,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52, 52] total 56 [2024-09-12 18:00:38,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200725428] [2024-09-12 18:00:38,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:38,225 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-09-12 18:00:38,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:38,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-09-12 18:00:38,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=474, Invalid=2606, Unknown=0, NotChecked=0, Total=3080 [2024-09-12 18:00:38,226 INFO L87 Difference]: Start difference. First operand 655 states and 734 transitions. Second operand has 56 states, 56 states have (on average 3.375) internal successors, (189), 54 states have internal predecessors, (189), 17 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:00:38,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:38,641 INFO L93 Difference]: Finished difference Result 671 states and 750 transitions. [2024-09-12 18:00:38,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-09-12 18:00:38,642 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 3.375) internal successors, (189), 54 states have internal predecessors, (189), 17 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Word has length 257 [2024-09-12 18:00:38,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:38,646 INFO L225 Difference]: With dead ends: 671 [2024-09-12 18:00:38,646 INFO L226 Difference]: Without dead ends: 669 [2024-09-12 18:00:38,646 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 495 SyntacticMatches, 63 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2772 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=480, Invalid=2712, Unknown=0, NotChecked=0, Total=3192 [2024-09-12 18:00:38,647 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 12 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:38,649 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 591 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:00:38,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-09-12 18:00:38,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 666. [2024-09-12 18:00:38,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 627 states have (on average 1.1291866028708133) internal successors, (708), 629 states have internal predecessors, (708), 19 states have call successors, (19), 19 states have call predecessors, (19), 18 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 18:00:38,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 745 transitions. [2024-09-12 18:00:38,743 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 745 transitions. Word has length 257 [2024-09-12 18:00:38,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:38,743 INFO L474 AbstractCegarLoop]: Abstraction has 666 states and 745 transitions. [2024-09-12 18:00:38,743 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 3.375) internal successors, (189), 54 states have internal predecessors, (189), 17 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:00:38,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:38,743 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 745 transitions. [2024-09-12 18:00:38,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-09-12 18:00:38,745 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:38,745 INFO L216 NwaCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:38,760 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2024-09-12 18:00:38,945 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,46 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:38,946 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:00:38,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:38,946 INFO L85 PathProgramCache]: Analyzing trace with hash -736350069, now seen corresponding path program 31 times [2024-09-12 18:00:38,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:38,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442968829] [2024-09-12 18:00:38,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:38,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:40,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:40,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:00:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:40,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 18:00:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:40,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 18:00:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:40,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 18:00:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:40,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 18:00:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:40,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 18:00:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:40,554 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 18:00:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:40,555 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-09-12 18:00:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:40,557 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-09-12 18:00:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:40,558 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:00:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:40,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-09-12 18:00:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:40,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 18:00:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:40,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-09-12 18:00:40,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:40,563 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-09-12 18:00:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:40,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 18:00:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:40,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 18:00:40,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:40,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2000 backedges. 904 proven. 616 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 18:00:40,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:40,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442968829] [2024-09-12 18:00:40,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442968829] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:40,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479017784] [2024-09-12 18:00:40,568 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 18:00:40,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:40,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:40,570 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:40,574 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-09-12 18:00:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:40,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-09-12 18:00:40,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:40,879 INFO L134 CoverageAnalysis]: Checked inductivity of 2000 backedges. 904 proven. 616 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 18:00:40,880 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:42,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2000 backedges. 904 proven. 616 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 18:00:42,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479017784] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:42,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:42,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69, 69] total 71 [2024-09-12 18:00:42,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799777823] [2024-09-12 18:00:42,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:42,104 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2024-09-12 18:00:42,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:42,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2024-09-12 18:00:42,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=684, Invalid=4286, Unknown=0, NotChecked=0, Total=4970 [2024-09-12 18:00:42,105 INFO L87 Difference]: Start difference. First operand 666 states and 745 transitions. Second operand has 71 states, 71 states have (on average 2.6901408450704225) internal successors, (191), 71 states have internal predecessors, (191), 18 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 18:00:42,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:42,618 INFO L93 Difference]: Finished difference Result 793 states and 888 transitions. [2024-09-12 18:00:42,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-09-12 18:00:42,618 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 2.6901408450704225) internal successors, (191), 71 states have internal predecessors, (191), 18 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Word has length 268 [2024-09-12 18:00:42,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:42,623 INFO L225 Difference]: With dead ends: 793 [2024-09-12 18:00:42,623 INFO L226 Difference]: Without dead ends: 666 [2024-09-12 18:00:42,624 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 638 GetRequests, 503 SyntacticMatches, 66 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4560 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=684, Invalid=4286, Unknown=0, NotChecked=0, Total=4970 [2024-09-12 18:00:42,625 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:42,625 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1065 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:00:42,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2024-09-12 18:00:42,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 666. [2024-09-12 18:00:42,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 627 states have (on average 1.127591706539075) internal successors, (707), 629 states have internal predecessors, (707), 19 states have call successors, (19), 19 states have call predecessors, (19), 18 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 18:00:42,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 744 transitions. [2024-09-12 18:00:42,728 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 744 transitions. Word has length 268 [2024-09-12 18:00:42,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:42,728 INFO L474 AbstractCegarLoop]: Abstraction has 666 states and 744 transitions. [2024-09-12 18:00:42,728 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 2.6901408450704225) internal successors, (191), 71 states have internal predecessors, (191), 18 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 18:00:42,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:42,729 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 744 transitions. [2024-09-12 18:00:42,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-09-12 18:00:42,731 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:42,731 INFO L216 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:42,749 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-09-12 18:00:42,931 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-09-12 18:00:42,932 INFO L399 AbstractCegarLoop]: === Iteration 51 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:00:42,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:42,932 INFO L85 PathProgramCache]: Analyzing trace with hash -378396397, now seen corresponding path program 32 times [2024-09-12 18:00:42,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:42,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946388148] [2024-09-12 18:00:42,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:42,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:44,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:44,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:00:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:44,224 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 18:00:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:44,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 18:00:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:44,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 18:00:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:44,227 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 18:00:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:44,227 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-09-12 18:00:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:44,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 18:00:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:44,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:00:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:44,231 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 18:00:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:44,232 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-09-12 18:00:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:44,233 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 18:00:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:44,234 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 18:00:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:44,235 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-09-12 18:00:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:44,236 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-09-12 18:00:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:44,237 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-09-12 18:00:44,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:44,239 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-09-12 18:00:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:44,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2081 backedges. 648 proven. 953 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 18:00:44,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:44,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946388148] [2024-09-12 18:00:44,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946388148] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:44,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582921058] [2024-09-12 18:00:44,241 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:00:44,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:44,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:44,242 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:44,243 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-09-12 18:00:44,334 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:00:44,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:44,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 70 conjuncts are in the unsatisfiable core [2024-09-12 18:00:44,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:44,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2081 backedges. 729 proven. 872 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 18:00:44,627 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:45,683 INFO L134 CoverageAnalysis]: Checked inductivity of 2081 backedges. 729 proven. 872 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 18:00:45,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582921058] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:45,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:45,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55, 55] total 59 [2024-09-12 18:00:45,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491296072] [2024-09-12 18:00:45,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:45,684 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2024-09-12 18:00:45,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:45,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2024-09-12 18:00:45,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=2894, Unknown=0, NotChecked=0, Total=3422 [2024-09-12 18:00:45,685 INFO L87 Difference]: Start difference. First operand 666 states and 744 transitions. Second operand has 59 states, 59 states have (on average 3.389830508474576) internal successors, (200), 57 states have internal predecessors, (200), 18 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 18:00:46,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:46,113 INFO L93 Difference]: Finished difference Result 682 states and 760 transitions. [2024-09-12 18:00:46,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-09-12 18:00:46,114 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 3.389830508474576) internal successors, (200), 57 states have internal predecessors, (200), 18 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Word has length 273 [2024-09-12 18:00:46,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:46,116 INFO L225 Difference]: With dead ends: 682 [2024-09-12 18:00:46,117 INFO L226 Difference]: Without dead ends: 680 [2024-09-12 18:00:46,117 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 651 GetRequests, 524 SyntacticMatches, 69 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3215 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=534, Invalid=3006, Unknown=0, NotChecked=0, Total=3540 [2024-09-12 18:00:46,117 INFO L434 NwaCegarLoop]: 49 mSDtfsCounter, 9 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:46,118 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 632 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:00:46,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2024-09-12 18:00:46,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 677. [2024-09-12 18:00:46,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 636 states have (on average 1.1257861635220126) internal successors, (716), 638 states have internal predecessors, (716), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 18:00:46,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 755 transitions. [2024-09-12 18:00:46,236 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 755 transitions. Word has length 273 [2024-09-12 18:00:46,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:46,238 INFO L474 AbstractCegarLoop]: Abstraction has 677 states and 755 transitions. [2024-09-12 18:00:46,238 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 3.389830508474576) internal successors, (200), 57 states have internal predecessors, (200), 18 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 18:00:46,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:46,239 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 755 transitions. [2024-09-12 18:00:46,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-09-12 18:00:46,241 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:46,242 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:46,261 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-09-12 18:00:46,442 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,48 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:46,443 INFO L399 AbstractCegarLoop]: === Iteration 52 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:00:46,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:46,443 INFO L85 PathProgramCache]: Analyzing trace with hash 340598909, now seen corresponding path program 33 times [2024-09-12 18:00:46,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:46,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901619180] [2024-09-12 18:00:46,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:46,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:48,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:48,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:00:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:48,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 18:00:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:48,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 18:00:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:48,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-09-12 18:00:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:48,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 18:00:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:48,466 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-09-12 18:00:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:48,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 18:00:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:48,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:00:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:48,469 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 18:00:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:48,471 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-09-12 18:00:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:48,472 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 18:00:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:48,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 18:00:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:48,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-09-12 18:00:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:48,476 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-09-12 18:00:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:48,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-09-12 18:00:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:48,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-09-12 18:00:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:48,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 18:00:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:48,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2261 backedges. 1020 proven. 697 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 18:00:48,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:48,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901619180] [2024-09-12 18:00:48,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901619180] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:48,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988715049] [2024-09-12 18:00:48,483 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:00:48,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:48,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:48,484 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:48,485 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-09-12 18:00:48,593 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2024-09-12 18:00:48,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:48,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-09-12 18:00:48,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:48,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2261 backedges. 1020 proven. 697 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 18:00:48,816 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:50,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2261 backedges. 1020 proven. 697 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 18:00:50,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988715049] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:50,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:50,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 73, 73] total 75 [2024-09-12 18:00:50,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057819865] [2024-09-12 18:00:50,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:50,141 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-09-12 18:00:50,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:50,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-09-12 18:00:50,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=760, Invalid=4790, Unknown=0, NotChecked=0, Total=5550 [2024-09-12 18:00:50,144 INFO L87 Difference]: Start difference. First operand 677 states and 755 transitions. Second operand has 75 states, 75 states have (on average 2.6933333333333334) internal successors, (202), 75 states have internal predecessors, (202), 19 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 18:00:50,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:50,731 INFO L93 Difference]: Finished difference Result 811 states and 906 transitions. [2024-09-12 18:00:50,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-09-12 18:00:50,732 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 2.6933333333333334) internal successors, (202), 75 states have internal predecessors, (202), 19 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Word has length 284 [2024-09-12 18:00:50,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:50,735 INFO L225 Difference]: With dead ends: 811 [2024-09-12 18:00:50,735 INFO L226 Difference]: Without dead ends: 677 [2024-09-12 18:00:50,736 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 676 GetRequests, 533 SyntacticMatches, 70 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5118 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=760, Invalid=4790, Unknown=0, NotChecked=0, Total=5550 [2024-09-12 18:00:50,736 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:50,736 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1235 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1224 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:00:50,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2024-09-12 18:00:50,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 677. [2024-09-12 18:00:50,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 636 states have (on average 1.1242138364779874) internal successors, (715), 638 states have internal predecessors, (715), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 18:00:50,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 754 transitions. [2024-09-12 18:00:50,821 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 754 transitions. Word has length 284 [2024-09-12 18:00:50,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:50,822 INFO L474 AbstractCegarLoop]: Abstraction has 677 states and 754 transitions. [2024-09-12 18:00:50,822 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 2.6933333333333334) internal successors, (202), 75 states have internal predecessors, (202), 19 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 18:00:50,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:50,822 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 754 transitions. [2024-09-12 18:00:50,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2024-09-12 18:00:50,824 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:50,824 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:50,843 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2024-09-12 18:00:51,024 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,49 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:51,025 INFO L399 AbstractCegarLoop]: === Iteration 53 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:00:51,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:51,026 INFO L85 PathProgramCache]: Analyzing trace with hash -100597499, now seen corresponding path program 34 times [2024-09-12 18:00:51,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:51,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894884429] [2024-09-12 18:00:51,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:51,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:52,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:52,469 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 18:00:52,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:52,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 18:00:52,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:52,472 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:00:52,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:52,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 18:00:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:52,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 18:00:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:52,476 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 18:00:52,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:52,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-09-12 18:00:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:52,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:00:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:52,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 18:00:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:52,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-09-12 18:00:52,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:52,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-09-12 18:00:52,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:52,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 18:00:52,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:52,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-09-12 18:00:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:52,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-12 18:00:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:52,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 18:00:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:52,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 18:00:52,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:52,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-09-12 18:00:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:52,494 INFO L134 CoverageAnalysis]: Checked inductivity of 2347 backedges. 731 proven. 1072 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 18:00:52,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:52,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894884429] [2024-09-12 18:00:52,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894884429] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:52,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014393200] [2024-09-12 18:00:52,495 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:00:52,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:52,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:52,497 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:52,499 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-09-12 18:00:52,598 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:00:52,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:52,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 77 conjuncts are in the unsatisfiable core [2024-09-12 18:00:52,604 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:52,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2347 backedges. 817 proven. 986 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 18:00:52,904 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:54,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2347 backedges. 817 proven. 986 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 18:00:54,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014393200] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:54,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:54,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58, 58] total 62 [2024-09-12 18:00:54,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659243738] [2024-09-12 18:00:54,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:54,078 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-09-12 18:00:54,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:54,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-09-12 18:00:54,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=585, Invalid=3197, Unknown=0, NotChecked=0, Total=3782 [2024-09-12 18:00:54,079 INFO L87 Difference]: Start difference. First operand 677 states and 754 transitions. Second operand has 62 states, 62 states have (on average 3.403225806451613) internal successors, (211), 60 states have internal predecessors, (211), 19 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 18:00:54,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:54,559 INFO L93 Difference]: Finished difference Result 693 states and 770 transitions. [2024-09-12 18:00:54,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-09-12 18:00:54,560 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 3.403225806451613) internal successors, (211), 60 states have internal predecessors, (211), 19 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Word has length 289 [2024-09-12 18:00:54,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:54,563 INFO L225 Difference]: With dead ends: 693 [2024-09-12 18:00:54,563 INFO L226 Difference]: Without dead ends: 691 [2024-09-12 18:00:54,563 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 689 GetRequests, 557 SyntacticMatches, 71 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3482 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=591, Invalid=3315, Unknown=0, NotChecked=0, Total=3906 [2024-09-12 18:00:54,563 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 9 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:54,564 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 831 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:00:54,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2024-09-12 18:00:54,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 688. [2024-09-12 18:00:54,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 645 states have (on average 1.1224806201550388) internal successors, (724), 647 states have internal predecessors, (724), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 18:00:54,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 765 transitions. [2024-09-12 18:00:54,663 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 765 transitions. Word has length 289 [2024-09-12 18:00:54,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:54,663 INFO L474 AbstractCegarLoop]: Abstraction has 688 states and 765 transitions. [2024-09-12 18:00:54,663 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 3.403225806451613) internal successors, (211), 60 states have internal predecessors, (211), 19 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 18:00:54,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:54,663 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 765 transitions. [2024-09-12 18:00:54,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-09-12 18:00:54,665 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:54,665 INFO L216 NwaCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:54,684 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2024-09-12 18:00:54,865 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,50 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:54,866 INFO L399 AbstractCegarLoop]: === Iteration 54 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:00:54,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:54,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1006946997, now seen corresponding path program 35 times [2024-09-12 18:00:54,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:54,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358299175] [2024-09-12 18:00:54,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:54,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:00:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 18:00:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 18:00:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,823 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:00:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,823 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 18:00:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 18:00:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 18:00:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,827 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-09-12 18:00:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:00:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 18:00:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-09-12 18:00:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-09-12 18:00:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,832 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 18:00:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-09-12 18:00:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-12 18:00:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 18:00:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,837 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 18:00:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,839 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-09-12 18:00:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-09-12 18:00:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:00:56,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2538 backedges. 1143 proven. 783 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 18:00:56,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:00:56,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358299175] [2024-09-12 18:00:56,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358299175] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:00:56,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502749071] [2024-09-12 18:00:56,842 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:00:56,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:00:56,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:00:56,843 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:00:56,845 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-09-12 18:00:56,966 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2024-09-12 18:00:56,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:00:56,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 76 conjuncts are in the unsatisfiable core [2024-09-12 18:00:56,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:00:57,191 INFO L134 CoverageAnalysis]: Checked inductivity of 2538 backedges. 1143 proven. 783 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 18:00:57,192 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:00:58,650 INFO L134 CoverageAnalysis]: Checked inductivity of 2538 backedges. 1143 proven. 783 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 18:00:58,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502749071] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:00:58,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:00:58,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 77, 77] total 79 [2024-09-12 18:00:58,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560094510] [2024-09-12 18:00:58,651 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:00:58,651 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2024-09-12 18:00:58,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:00:58,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2024-09-12 18:00:58,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=840, Invalid=5322, Unknown=0, NotChecked=0, Total=6162 [2024-09-12 18:00:58,653 INFO L87 Difference]: Start difference. First operand 688 states and 765 transitions. Second operand has 79 states, 79 states have (on average 2.6962025316455698) internal successors, (213), 79 states have internal predecessors, (213), 20 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 18:00:59,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:00:59,270 INFO L93 Difference]: Finished difference Result 829 states and 924 transitions. [2024-09-12 18:00:59,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2024-09-12 18:00:59,270 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 79 states have (on average 2.6962025316455698) internal successors, (213), 79 states have internal predecessors, (213), 20 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Word has length 300 [2024-09-12 18:00:59,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:00:59,275 INFO L225 Difference]: With dead ends: 829 [2024-09-12 18:00:59,275 INFO L226 Difference]: Without dead ends: 688 [2024-09-12 18:00:59,276 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 563 SyntacticMatches, 74 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5708 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=840, Invalid=5322, Unknown=0, NotChecked=0, Total=6162 [2024-09-12 18:00:59,277 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:00:59,277 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1152 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:00:59,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2024-09-12 18:00:59,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 688. [2024-09-12 18:00:59,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 645 states have (on average 1.1209302325581396) internal successors, (723), 647 states have internal predecessors, (723), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 18:00:59,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 764 transitions. [2024-09-12 18:00:59,417 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 764 transitions. Word has length 300 [2024-09-12 18:00:59,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:00:59,417 INFO L474 AbstractCegarLoop]: Abstraction has 688 states and 764 transitions. [2024-09-12 18:00:59,418 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 2.6962025316455698) internal successors, (213), 79 states have internal predecessors, (213), 20 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 18:00:59,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:59,418 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 764 transitions. [2024-09-12 18:00:59,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-09-12 18:00:59,420 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:00:59,420 INFO L216 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:00:59,440 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-09-12 18:00:59,621 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-09-12 18:00:59,621 INFO L399 AbstractCegarLoop]: === Iteration 55 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:00:59,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:00:59,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1613563347, now seen corresponding path program 36 times [2024-09-12 18:00:59,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:00:59,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119871525] [2024-09-12 18:00:59,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:00:59,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:00:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:01,257 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:01,258 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 18:01:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:01,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 18:01:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:01,261 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 18:01:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:01,263 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-09-12 18:01:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:01,264 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-09-12 18:01:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:01,265 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 18:01:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:01,266 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 18:01:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:01,267 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-09-12 18:01:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:01,268 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-09-12 18:01:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:01,269 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:01:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:01,269 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-09-12 18:01:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:01,270 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-09-12 18:01:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:01,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-09-12 18:01:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:01,273 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-09-12 18:01:01,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:01,274 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 18:01:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:01,276 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2024-09-12 18:01:01,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:01,277 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-09-12 18:01:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:01,278 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2024-09-12 18:01:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:01,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2629 backedges. 819 proven. 1198 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 18:01:01,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:01,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119871525] [2024-09-12 18:01:01,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119871525] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:01,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647853541] [2024-09-12 18:01:01,280 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:01:01,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:01,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:01,284 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:01,285 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-09-12 18:01:01,402 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 20 check-sat command(s) [2024-09-12 18:01:01,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:01,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 81 conjuncts are in the unsatisfiable core [2024-09-12 18:01:01,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:01,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2629 backedges. 910 proven. 1107 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 18:01:01,676 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:02,907 INFO L134 CoverageAnalysis]: Checked inductivity of 2629 backedges. 910 proven. 1107 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 18:01:02,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647853541] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:02,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:02,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61, 61] total 65 [2024-09-12 18:01:02,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955649166] [2024-09-12 18:01:02,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:02,908 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2024-09-12 18:01:02,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:02,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2024-09-12 18:01:02,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=645, Invalid=3515, Unknown=0, NotChecked=0, Total=4160 [2024-09-12 18:01:02,909 INFO L87 Difference]: Start difference. First operand 688 states and 764 transitions. Second operand has 65 states, 65 states have (on average 3.4153846153846152) internal successors, (222), 63 states have internal predecessors, (222), 20 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 18:01:03,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:03,367 INFO L93 Difference]: Finished difference Result 704 states and 780 transitions. [2024-09-12 18:01:03,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-09-12 18:01:03,368 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 3.4153846153846152) internal successors, (222), 63 states have internal predecessors, (222), 20 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Word has length 305 [2024-09-12 18:01:03,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:03,371 INFO L225 Difference]: With dead ends: 704 [2024-09-12 18:01:03,371 INFO L226 Difference]: Without dead ends: 702 [2024-09-12 18:01:03,371 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 727 GetRequests, 588 SyntacticMatches, 75 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3867 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=651, Invalid=3639, Unknown=0, NotChecked=0, Total=4290 [2024-09-12 18:01:03,372 INFO L434 NwaCegarLoop]: 53 mSDtfsCounter, 12 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:03,372 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 676 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:01:03,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2024-09-12 18:01:03,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 699. [2024-09-12 18:01:03,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 654 states have (on average 1.1192660550458715) internal successors, (732), 656 states have internal predecessors, (732), 22 states have call successors, (22), 22 states have call predecessors, (22), 21 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:01:03,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 775 transitions. [2024-09-12 18:01:03,461 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 775 transitions. Word has length 305 [2024-09-12 18:01:03,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:03,461 INFO L474 AbstractCegarLoop]: Abstraction has 699 states and 775 transitions. [2024-09-12 18:01:03,461 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 3.4153846153846152) internal successors, (222), 63 states have internal predecessors, (222), 20 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 18:01:03,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:03,462 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 775 transitions. [2024-09-12 18:01:03,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-09-12 18:01:03,463 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:03,463 INFO L216 NwaCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:03,477 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2024-09-12 18:01:03,663 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,52 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:03,664 INFO L399 AbstractCegarLoop]: === Iteration 56 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:01:03,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:03,664 INFO L85 PathProgramCache]: Analyzing trace with hash 30917565, now seen corresponding path program 37 times [2024-09-12 18:01:03,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:03,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784767551] [2024-09-12 18:01:03,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:03,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:05,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:05,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 18:01:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:05,767 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-09-12 18:01:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:05,767 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-09-12 18:01:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:05,768 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-09-12 18:01:05,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:05,769 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-09-12 18:01:05,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:05,770 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 18:01:05,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:05,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-09-12 18:01:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:05,772 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-09-12 18:01:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:05,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-09-12 18:01:05,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:05,774 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:01:05,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:05,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-09-12 18:01:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:05,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-09-12 18:01:05,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:05,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-09-12 18:01:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:05,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-09-12 18:01:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:05,778 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 18:01:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:05,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2024-09-12 18:01:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:05,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-09-12 18:01:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:05,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2024-09-12 18:01:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:05,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-09-12 18:01:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:05,783 INFO L134 CoverageAnalysis]: Checked inductivity of 2831 backedges. 1273 proven. 874 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 18:01:05,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:05,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784767551] [2024-09-12 18:01:05,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784767551] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:05,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479448093] [2024-09-12 18:01:05,784 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 18:01:05,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:05,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:05,785 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:05,786 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-09-12 18:01:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:05,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 708 conjuncts, 80 conjuncts are in the unsatisfiable core [2024-09-12 18:01:05,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:06,187 INFO L134 CoverageAnalysis]: Checked inductivity of 2831 backedges. 1273 proven. 874 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 18:01:06,187 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:07,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2831 backedges. 1273 proven. 874 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 18:01:07,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479448093] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:07,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:07,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 81, 81] total 83 [2024-09-12 18:01:07,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139979385] [2024-09-12 18:01:07,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:07,816 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2024-09-12 18:01:07,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:07,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2024-09-12 18:01:07,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=924, Invalid=5882, Unknown=0, NotChecked=0, Total=6806 [2024-09-12 18:01:07,818 INFO L87 Difference]: Start difference. First operand 699 states and 775 transitions. Second operand has 83 states, 83 states have (on average 2.6987951807228914) internal successors, (224), 83 states have internal predecessors, (224), 21 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 18:01:08,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:08,479 INFO L93 Difference]: Finished difference Result 847 states and 942 transitions. [2024-09-12 18:01:08,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2024-09-12 18:01:08,480 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 83 states have (on average 2.6987951807228914) internal successors, (224), 83 states have internal predecessors, (224), 21 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 316 [2024-09-12 18:01:08,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:08,484 INFO L225 Difference]: With dead ends: 847 [2024-09-12 18:01:08,484 INFO L226 Difference]: Without dead ends: 699 [2024-09-12 18:01:08,485 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 752 GetRequests, 593 SyntacticMatches, 78 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6330 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=924, Invalid=5882, Unknown=0, NotChecked=0, Total=6806 [2024-09-12 18:01:08,485 INFO L434 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1327 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:08,485 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1327 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:01:08,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-09-12 18:01:08,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2024-09-12 18:01:08,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 654 states have (on average 1.117737003058104) internal successors, (731), 656 states have internal predecessors, (731), 22 states have call successors, (22), 22 states have call predecessors, (22), 21 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:01:08,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 774 transitions. [2024-09-12 18:01:08,608 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 774 transitions. Word has length 316 [2024-09-12 18:01:08,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:08,608 INFO L474 AbstractCegarLoop]: Abstraction has 699 states and 774 transitions. [2024-09-12 18:01:08,608 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 2.6987951807228914) internal successors, (224), 83 states have internal predecessors, (224), 21 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 18:01:08,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:08,608 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 774 transitions. [2024-09-12 18:01:08,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2024-09-12 18:01:08,609 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:08,610 INFO L216 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:08,622 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2024-09-12 18:01:08,810 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,53 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:08,810 INFO L399 AbstractCegarLoop]: === Iteration 57 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:01:08,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:08,811 INFO L85 PathProgramCache]: Analyzing trace with hash -89684923, now seen corresponding path program 38 times [2024-09-12 18:01:08,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:08,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714427362] [2024-09-12 18:01:08,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:08,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 18:01:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 18:01:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 18:01:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 18:01:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-09-12 18:01:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 18:01:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-09-12 18:01:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 18:01:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 18:01:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-09-12 18:01:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 18:01:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,517 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-09-12 18:01:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,517 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 18:01:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-09-12 18:01:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,519 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-09-12 18:01:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-09-12 18:01:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-09-12 18:01:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,522 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-09-12 18:01:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2024-09-12 18:01:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:10,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2927 backedges. 912 proven. 1331 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 18:01:10,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:10,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714427362] [2024-09-12 18:01:10,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714427362] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:10,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459408372] [2024-09-12 18:01:10,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:01:10,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:10,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:10,526 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:10,527 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-09-12 18:01:10,630 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:01:10,631 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:10,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 82 conjuncts are in the unsatisfiable core [2024-09-12 18:01:10,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:10,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2927 backedges. 1008 proven. 1235 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 18:01:10,915 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:12,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2927 backedges. 1008 proven. 1235 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 18:01:12,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459408372] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:12,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:12,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 68 [2024-09-12 18:01:12,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562581496] [2024-09-12 18:01:12,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:12,299 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2024-09-12 18:01:12,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:12,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2024-09-12 18:01:12,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=708, Invalid=3848, Unknown=0, NotChecked=0, Total=4556 [2024-09-12 18:01:12,300 INFO L87 Difference]: Start difference. First operand 699 states and 774 transitions. Second operand has 68 states, 68 states have (on average 3.426470588235294) internal successors, (233), 66 states have internal predecessors, (233), 21 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 18:01:12,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:12,872 INFO L93 Difference]: Finished difference Result 715 states and 790 transitions. [2024-09-12 18:01:12,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-09-12 18:01:12,872 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 3.426470588235294) internal successors, (233), 66 states have internal predecessors, (233), 21 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 321 [2024-09-12 18:01:12,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:12,875 INFO L225 Difference]: With dead ends: 715 [2024-09-12 18:01:12,875 INFO L226 Difference]: Without dead ends: 713 [2024-09-12 18:01:12,876 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 765 GetRequests, 617 SyntacticMatches, 81 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4388 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=714, Invalid=3978, Unknown=0, NotChecked=0, Total=4692 [2024-09-12 18:01:12,876 INFO L434 NwaCegarLoop]: 55 mSDtfsCounter, 12 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:12,876 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 805 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:01:12,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-09-12 18:01:12,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 710. [2024-09-12 18:01:12,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 663 states have (on average 1.1161387631975868) internal successors, (740), 665 states have internal predecessors, (740), 23 states have call successors, (23), 23 states have call predecessors, (23), 22 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:01:12,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 785 transitions. [2024-09-12 18:01:12,981 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 785 transitions. Word has length 321 [2024-09-12 18:01:12,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:12,981 INFO L474 AbstractCegarLoop]: Abstraction has 710 states and 785 transitions. [2024-09-12 18:01:12,982 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 3.426470588235294) internal successors, (233), 66 states have internal predecessors, (233), 21 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-09-12 18:01:12,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:12,982 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 785 transitions. [2024-09-12 18:01:12,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-09-12 18:01:12,984 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:12,984 INFO L216 NwaCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:13,003 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2024-09-12 18:01:13,184 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-09-12 18:01:13,186 INFO L399 AbstractCegarLoop]: === Iteration 58 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:01:13,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:13,186 INFO L85 PathProgramCache]: Analyzing trace with hash -744609269, now seen corresponding path program 39 times [2024-09-12 18:01:13,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:13,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249623958] [2024-09-12 18:01:13,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:13,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:15,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:15,929 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 18:01:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:15,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 18:01:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:15,931 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-09-12 18:01:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:15,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 18:01:15,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:15,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-09-12 18:01:15,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:15,934 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 18:01:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:15,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-09-12 18:01:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:15,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 18:01:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:15,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-09-12 18:01:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:15,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-09-12 18:01:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:15,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 18:01:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:15,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-09-12 18:01:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:15,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 18:01:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:15,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-09-12 18:01:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:15,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-09-12 18:01:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:15,945 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-09-12 18:01:15,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:15,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-09-12 18:01:15,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:15,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-09-12 18:01:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:15,949 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2024-09-12 18:01:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:15,951 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-09-12 18:01:15,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:15,953 INFO L134 CoverageAnalysis]: Checked inductivity of 3140 backedges. 1410 proven. 970 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-09-12 18:01:15,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:15,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249623958] [2024-09-12 18:01:15,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249623958] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:15,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602697483] [2024-09-12 18:01:15,953 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:01:15,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:15,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:15,955 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:15,957 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-09-12 18:01:16,082 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2024-09-12 18:01:16,082 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:16,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 84 conjuncts are in the unsatisfiable core [2024-09-12 18:01:16,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:16,384 INFO L134 CoverageAnalysis]: Checked inductivity of 3140 backedges. 1410 proven. 970 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-09-12 18:01:16,385 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:18,138 INFO L134 CoverageAnalysis]: Checked inductivity of 3140 backedges. 1410 proven. 970 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-09-12 18:01:18,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602697483] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:18,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:18,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85, 85] total 87 [2024-09-12 18:01:18,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926978435] [2024-09-12 18:01:18,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:18,140 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2024-09-12 18:01:18,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:18,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2024-09-12 18:01:18,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1012, Invalid=6470, Unknown=0, NotChecked=0, Total=7482 [2024-09-12 18:01:18,141 INFO L87 Difference]: Start difference. First operand 710 states and 785 transitions. Second operand has 87 states, 87 states have (on average 2.7011494252873565) internal successors, (235), 87 states have internal predecessors, (235), 22 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:01:18,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:18,819 INFO L93 Difference]: Finished difference Result 865 states and 960 transitions. [2024-09-12 18:01:18,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2024-09-12 18:01:18,820 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 2.7011494252873565) internal successors, (235), 87 states have internal predecessors, (235), 22 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Word has length 332 [2024-09-12 18:01:18,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:18,824 INFO L225 Difference]: With dead ends: 865 [2024-09-12 18:01:18,824 INFO L226 Difference]: Without dead ends: 710 [2024-09-12 18:01:18,825 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 790 GetRequests, 623 SyntacticMatches, 82 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6984 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1012, Invalid=6470, Unknown=0, NotChecked=0, Total=7482 [2024-09-12 18:01:18,825 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:18,826 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1310 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:01:18,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2024-09-12 18:01:18,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 710. [2024-09-12 18:01:18,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 663 states have (on average 1.114630467571644) internal successors, (739), 665 states have internal predecessors, (739), 23 states have call successors, (23), 23 states have call predecessors, (23), 22 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:01:18,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 784 transitions. [2024-09-12 18:01:18,933 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 784 transitions. Word has length 332 [2024-09-12 18:01:18,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:18,933 INFO L474 AbstractCegarLoop]: Abstraction has 710 states and 784 transitions. [2024-09-12 18:01:18,933 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 2.7011494252873565) internal successors, (235), 87 states have internal predecessors, (235), 22 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:01:18,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:18,933 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 784 transitions. [2024-09-12 18:01:18,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-09-12 18:01:18,935 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:18,935 INFO L216 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:18,950 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2024-09-12 18:01:19,136 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-09-12 18:01:19,136 INFO L399 AbstractCegarLoop]: === Iteration 59 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:01:19,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:19,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1892951405, now seen corresponding path program 40 times [2024-09-12 18:01:19,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:19,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178704522] [2024-09-12 18:01:19,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:19,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 18:01:21,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 18:01:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,136 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-09-12 18:01:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,137 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:01:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 18:01:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 18:01:21,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,141 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 18:01:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,141 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-09-12 18:01:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 18:01:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-09-12 18:01:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,144 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 18:01:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,145 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-09-12 18:01:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,146 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-09-12 18:01:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-09-12 18:01:21,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-09-12 18:01:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-09-12 18:01:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-09-12 18:01:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-09-12 18:01:21,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2024-09-12 18:01:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,153 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-09-12 18:01:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:21,154 INFO L134 CoverageAnalysis]: Checked inductivity of 3241 backedges. 1010 proven. 1471 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-09-12 18:01:21,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:21,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178704522] [2024-09-12 18:01:21,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178704522] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:21,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779021163] [2024-09-12 18:01:21,155 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:01:21,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:21,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:21,156 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:21,157 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-09-12 18:01:21,273 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:01:21,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:21,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 89 conjuncts are in the unsatisfiable core [2024-09-12 18:01:21,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:21,572 INFO L134 CoverageAnalysis]: Checked inductivity of 3241 backedges. 1111 proven. 1370 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-09-12 18:01:21,572 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:23,054 INFO L134 CoverageAnalysis]: Checked inductivity of 3241 backedges. 1111 proven. 1370 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-09-12 18:01:23,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779021163] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:23,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:23,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67, 67] total 71 [2024-09-12 18:01:23,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576845950] [2024-09-12 18:01:23,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:23,055 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2024-09-12 18:01:23,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:23,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2024-09-12 18:01:23,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=774, Invalid=4196, Unknown=0, NotChecked=0, Total=4970 [2024-09-12 18:01:23,057 INFO L87 Difference]: Start difference. First operand 710 states and 784 transitions. Second operand has 71 states, 71 states have (on average 3.436619718309859) internal successors, (244), 69 states have internal predecessors, (244), 22 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:01:23,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:23,623 INFO L93 Difference]: Finished difference Result 726 states and 800 transitions. [2024-09-12 18:01:23,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-09-12 18:01:23,623 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 3.436619718309859) internal successors, (244), 69 states have internal predecessors, (244), 22 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Word has length 337 [2024-09-12 18:01:23,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:23,626 INFO L225 Difference]: With dead ends: 726 [2024-09-12 18:01:23,626 INFO L226 Difference]: Without dead ends: 724 [2024-09-12 18:01:23,627 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 803 GetRequests, 650 SyntacticMatches, 83 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4697 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=780, Invalid=4332, Unknown=0, NotChecked=0, Total=5112 [2024-09-12 18:01:23,627 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 9 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 1103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:23,627 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 721 Invalid, 1103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:01:23,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-09-12 18:01:23,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 721. [2024-09-12 18:01:23,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 672 states have (on average 1.1130952380952381) internal successors, (748), 674 states have internal predecessors, (748), 24 states have call successors, (24), 24 states have call predecessors, (24), 23 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:01:23,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 795 transitions. [2024-09-12 18:01:23,746 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 795 transitions. Word has length 337 [2024-09-12 18:01:23,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:23,747 INFO L474 AbstractCegarLoop]: Abstraction has 721 states and 795 transitions. [2024-09-12 18:01:23,747 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 3.436619718309859) internal successors, (244), 69 states have internal predecessors, (244), 22 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:01:23,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:23,748 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 795 transitions. [2024-09-12 18:01:23,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2024-09-12 18:01:23,750 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:23,750 INFO L216 NwaCegarLoop]: trace histogram [22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:23,764 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2024-09-12 18:01:23,950 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,56 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:23,951 INFO L399 AbstractCegarLoop]: === Iteration 60 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:01:23,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:23,951 INFO L85 PathProgramCache]: Analyzing trace with hash 172521213, now seen corresponding path program 41 times [2024-09-12 18:01:23,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:23,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617648220] [2024-09-12 18:01:23,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:23,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,536 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 18:01:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-09-12 18:01:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-09-12 18:01:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:01:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 18:01:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 18:01:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,544 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 18:01:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,545 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-09-12 18:01:26,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,546 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 18:01:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-09-12 18:01:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 18:01:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-09-12 18:01:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-09-12 18:01:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-09-12 18:01:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-09-12 18:01:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-09-12 18:01:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-09-12 18:01:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,555 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-09-12 18:01:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2024-09-12 18:01:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,557 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-09-12 18:01:26,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-09-12 18:01:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:26,561 INFO L134 CoverageAnalysis]: Checked inductivity of 3465 backedges. 1554 proven. 1071 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 18:01:26,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:26,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617648220] [2024-09-12 18:01:26,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617648220] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:26,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273874774] [2024-09-12 18:01:26,561 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:01:26,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:26,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:26,563 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:26,565 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-09-12 18:01:26,751 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 22 check-sat command(s) [2024-09-12 18:01:26,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:26,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 88 conjuncts are in the unsatisfiable core [2024-09-12 18:01:26,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:27,056 INFO L134 CoverageAnalysis]: Checked inductivity of 3465 backedges. 1554 proven. 1071 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 18:01:27,056 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:28,951 INFO L134 CoverageAnalysis]: Checked inductivity of 3465 backedges. 1554 proven. 1071 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 18:01:28,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273874774] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:28,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:28,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [89, 89, 89] total 91 [2024-09-12 18:01:28,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715837553] [2024-09-12 18:01:28,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:28,953 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2024-09-12 18:01:28,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:28,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2024-09-12 18:01:28,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1104, Invalid=7086, Unknown=0, NotChecked=0, Total=8190 [2024-09-12 18:01:28,956 INFO L87 Difference]: Start difference. First operand 721 states and 795 transitions. Second operand has 91 states, 91 states have (on average 2.7032967032967035) internal successors, (246), 91 states have internal predecessors, (246), 23 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:01:29,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:29,861 INFO L93 Difference]: Finished difference Result 883 states and 978 transitions. [2024-09-12 18:01:29,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2024-09-12 18:01:29,861 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 91 states have (on average 2.7032967032967035) internal successors, (246), 91 states have internal predecessors, (246), 23 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Word has length 348 [2024-09-12 18:01:29,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:29,866 INFO L225 Difference]: With dead ends: 883 [2024-09-12 18:01:29,866 INFO L226 Difference]: Without dead ends: 721 [2024-09-12 18:01:29,867 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 828 GetRequests, 653 SyntacticMatches, 86 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7670 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1104, Invalid=7086, Unknown=0, NotChecked=0, Total=8190 [2024-09-12 18:01:29,868 INFO L434 NwaCegarLoop]: 96 mSDtfsCounter, 0 mSDsluCounter, 1796 mSDsCounter, 0 mSdLazyCounter, 1869 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1892 SdHoareTripleChecker+Invalid, 1869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:29,868 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1892 Invalid, 1869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1869 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:01:29,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2024-09-12 18:01:29,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 721. [2024-09-12 18:01:29,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 672 states have (on average 1.1116071428571428) internal successors, (747), 674 states have internal predecessors, (747), 24 states have call successors, (24), 24 states have call predecessors, (24), 23 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:01:29,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 794 transitions. [2024-09-12 18:01:29,992 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 794 transitions. Word has length 348 [2024-09-12 18:01:29,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:29,992 INFO L474 AbstractCegarLoop]: Abstraction has 721 states and 794 transitions. [2024-09-12 18:01:29,992 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 91 states have (on average 2.7032967032967035) internal successors, (246), 91 states have internal predecessors, (246), 23 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:01:29,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:29,993 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 794 transitions. [2024-09-12 18:01:29,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-09-12 18:01:29,995 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:29,995 INFO L216 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:30,016 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2024-09-12 18:01:30,199 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-09-12 18:01:30,200 INFO L399 AbstractCegarLoop]: === Iteration 61 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:01:30,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:30,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1363929211, now seen corresponding path program 42 times [2024-09-12 18:01:30,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:30,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350232739] [2024-09-12 18:01:30,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:30,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:32,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,498 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 18:01:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:01:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 18:01:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-09-12 18:01:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,502 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 18:01:32,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 18:01:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-12 18:01:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 18:01:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-09-12 18:01:32,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-09-12 18:01:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:01:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-09-12 18:01:32,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-09-12 18:01:32,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-09-12 18:01:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-09-12 18:01:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-09-12 18:01:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-09-12 18:01:32,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2024-09-12 18:01:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2024-09-12 18:01:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,517 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-09-12 18:01:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2024-09-12 18:01:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:32,520 INFO L134 CoverageAnalysis]: Checked inductivity of 3571 backedges. 1113 proven. 1618 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 18:01:32,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:32,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350232739] [2024-09-12 18:01:32,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350232739] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:32,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228410116] [2024-09-12 18:01:32,520 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:01:32,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:32,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:32,522 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:32,522 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-09-12 18:01:32,661 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 23 check-sat command(s) [2024-09-12 18:01:32,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:32,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 93 conjuncts are in the unsatisfiable core [2024-09-12 18:01:32,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:32,968 INFO L134 CoverageAnalysis]: Checked inductivity of 3571 backedges. 1219 proven. 1512 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 18:01:32,968 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:34,534 INFO L134 CoverageAnalysis]: Checked inductivity of 3571 backedges. 1219 proven. 1512 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 18:01:34,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228410116] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:34,535 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:34,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70, 70] total 74 [2024-09-12 18:01:34,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632620358] [2024-09-12 18:01:34,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:34,536 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2024-09-12 18:01:34,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:34,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2024-09-12 18:01:34,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=843, Invalid=4559, Unknown=0, NotChecked=0, Total=5402 [2024-09-12 18:01:34,537 INFO L87 Difference]: Start difference. First operand 721 states and 794 transitions. Second operand has 74 states, 74 states have (on average 3.445945945945946) internal successors, (255), 72 states have internal predecessors, (255), 23 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:01:35,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:35,109 INFO L93 Difference]: Finished difference Result 737 states and 810 transitions. [2024-09-12 18:01:35,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-09-12 18:01:35,110 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 3.445945945945946) internal successors, (255), 72 states have internal predecessors, (255), 23 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Word has length 353 [2024-09-12 18:01:35,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:35,113 INFO L225 Difference]: With dead ends: 737 [2024-09-12 18:01:35,113 INFO L226 Difference]: Without dead ends: 735 [2024-09-12 18:01:35,113 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 841 GetRequests, 681 SyntacticMatches, 87 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5142 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=849, Invalid=4701, Unknown=0, NotChecked=0, Total=5550 [2024-09-12 18:01:35,114 INFO L434 NwaCegarLoop]: 59 mSDtfsCounter, 10 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:35,114 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 909 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:01:35,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2024-09-12 18:01:35,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 732. [2024-09-12 18:01:35,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 681 states have (on average 1.1101321585903083) internal successors, (756), 683 states have internal predecessors, (756), 25 states have call successors, (25), 25 states have call predecessors, (25), 24 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:01:35,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 805 transitions. [2024-09-12 18:01:35,222 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 805 transitions. Word has length 353 [2024-09-12 18:01:35,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:35,222 INFO L474 AbstractCegarLoop]: Abstraction has 732 states and 805 transitions. [2024-09-12 18:01:35,222 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 3.445945945945946) internal successors, (255), 72 states have internal predecessors, (255), 23 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:01:35,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:35,223 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 805 transitions. [2024-09-12 18:01:35,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-09-12 18:01:35,224 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:35,224 INFO L216 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:35,238 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2024-09-12 18:01:35,424 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,58 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:35,425 INFO L399 AbstractCegarLoop]: === Iteration 62 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:01:35,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:35,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1316032203, now seen corresponding path program 43 times [2024-09-12 18:01:35,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:35,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763870269] [2024-09-12 18:01:35,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:35,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:35,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,214 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,215 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 18:01:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,216 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:01:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,217 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 18:01:38,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-09-12 18:01:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,219 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-09-12 18:01:38,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,219 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 18:01:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,220 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-09-12 18:01:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 18:01:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-09-12 18:01:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-09-12 18:01:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,224 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:01:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,224 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-09-12 18:01:38,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-09-12 18:01:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-09-12 18:01:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,227 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-09-12 18:01:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-09-12 18:01:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-09-12 18:01:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2024-09-12 18:01:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,230 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2024-09-12 18:01:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,231 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-09-12 18:01:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,232 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2024-09-12 18:01:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,233 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-09-12 18:01:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,234 INFO L134 CoverageAnalysis]: Checked inductivity of 3806 backedges. 1705 proven. 1177 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 18:01:38,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:38,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763870269] [2024-09-12 18:01:38,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763870269] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:38,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320881883] [2024-09-12 18:01:38,235 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 18:01:38,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:38,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:38,237 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:38,239 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-09-12 18:01:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:38,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 92 conjuncts are in the unsatisfiable core [2024-09-12 18:01:38,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:38,700 INFO L134 CoverageAnalysis]: Checked inductivity of 3806 backedges. 1705 proven. 1177 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 18:01:38,701 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:40,742 INFO L134 CoverageAnalysis]: Checked inductivity of 3806 backedges. 1705 proven. 1177 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 18:01:40,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320881883] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:40,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:40,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 93, 93] total 95 [2024-09-12 18:01:40,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504026738] [2024-09-12 18:01:40,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:40,743 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2024-09-12 18:01:40,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:40,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2024-09-12 18:01:40,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1200, Invalid=7730, Unknown=0, NotChecked=0, Total=8930 [2024-09-12 18:01:40,745 INFO L87 Difference]: Start difference. First operand 732 states and 805 transitions. Second operand has 95 states, 95 states have (on average 2.705263157894737) internal successors, (257), 95 states have internal predecessors, (257), 24 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:01:41,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:41,643 INFO L93 Difference]: Finished difference Result 901 states and 996 transitions. [2024-09-12 18:01:41,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2024-09-12 18:01:41,643 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 2.705263157894737) internal successors, (257), 95 states have internal predecessors, (257), 24 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Word has length 364 [2024-09-12 18:01:41,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:41,646 INFO L225 Difference]: With dead ends: 901 [2024-09-12 18:01:41,646 INFO L226 Difference]: Without dead ends: 732 [2024-09-12 18:01:41,647 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 866 GetRequests, 683 SyntacticMatches, 90 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8388 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1200, Invalid=7730, Unknown=0, NotChecked=0, Total=8930 [2024-09-12 18:01:41,647 INFO L434 NwaCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 1654 mSDsCounter, 0 mSdLazyCounter, 1866 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 1866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:41,647 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1754 Invalid, 1866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1866 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:01:41,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2024-09-12 18:01:41,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2024-09-12 18:01:41,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 681 states have (on average 1.1086637298091042) internal successors, (755), 683 states have internal predecessors, (755), 25 states have call successors, (25), 25 states have call predecessors, (25), 24 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:01:41,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 804 transitions. [2024-09-12 18:01:41,743 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 804 transitions. Word has length 364 [2024-09-12 18:01:41,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:41,743 INFO L474 AbstractCegarLoop]: Abstraction has 732 states and 804 transitions. [2024-09-12 18:01:41,743 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 2.705263157894737) internal successors, (257), 95 states have internal predecessors, (257), 24 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:01:41,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:41,743 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 804 transitions. [2024-09-12 18:01:41,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2024-09-12 18:01:41,745 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:41,745 INFO L216 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:41,760 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2024-09-12 18:01:41,945 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,59 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:41,945 INFO L399 AbstractCegarLoop]: === Iteration 63 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:01:41,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:41,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1042636973, now seen corresponding path program 44 times [2024-09-12 18:01:41,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:41,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564547682] [2024-09-12 18:01:41,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:41,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,208 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,209 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 18:01:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,210 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:01:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 18:01:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,212 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-09-12 18:01:44,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-09-12 18:01:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,214 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-09-12 18:01:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,215 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-09-12 18:01:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,215 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-09-12 18:01:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,216 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 18:01:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,217 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-09-12 18:01:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 18:01:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,219 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-09-12 18:01:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,220 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-09-12 18:01:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-09-12 18:01:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2024-09-12 18:01:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2024-09-12 18:01:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2024-09-12 18:01:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,224 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-09-12 18:01:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-09-12 18:01:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-09-12 18:01:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,227 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-09-12 18:01:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-09-12 18:01:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:44,229 INFO L134 CoverageAnalysis]: Checked inductivity of 3917 backedges. 1221 proven. 1772 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 18:01:44,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:44,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564547682] [2024-09-12 18:01:44,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564547682] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:44,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629861785] [2024-09-12 18:01:44,230 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:01:44,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:44,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:44,231 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:44,232 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-09-12 18:01:44,348 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:01:44,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:44,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 94 conjuncts are in the unsatisfiable core [2024-09-12 18:01:44,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:44,675 INFO L134 CoverageAnalysis]: Checked inductivity of 3917 backedges. 1332 proven. 1661 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 18:01:44,675 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:46,420 INFO L134 CoverageAnalysis]: Checked inductivity of 3917 backedges. 1332 proven. 1661 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 18:01:46,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629861785] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:46,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:46,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 73, 73] total 77 [2024-09-12 18:01:46,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122031297] [2024-09-12 18:01:46,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:46,421 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2024-09-12 18:01:46,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:46,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2024-09-12 18:01:46,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=915, Invalid=4937, Unknown=0, NotChecked=0, Total=5852 [2024-09-12 18:01:46,423 INFO L87 Difference]: Start difference. First operand 732 states and 804 transitions. Second operand has 77 states, 77 states have (on average 3.4545454545454546) internal successors, (266), 75 states have internal predecessors, (266), 24 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:01:47,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:47,158 INFO L93 Difference]: Finished difference Result 748 states and 820 transitions. [2024-09-12 18:01:47,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-09-12 18:01:47,159 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 77 states have (on average 3.4545454545454546) internal successors, (266), 75 states have internal predecessors, (266), 24 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Word has length 369 [2024-09-12 18:01:47,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:47,162 INFO L225 Difference]: With dead ends: 748 [2024-09-12 18:01:47,162 INFO L226 Difference]: Without dead ends: 746 [2024-09-12 18:01:47,162 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 879 GetRequests, 710 SyntacticMatches, 93 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5741 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=921, Invalid=5085, Unknown=0, NotChecked=0, Total=6006 [2024-09-12 18:01:47,163 INFO L434 NwaCegarLoop]: 61 mSDtfsCounter, 10 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 1565 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:47,163 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1230 Invalid, 1565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1565 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:01:47,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2024-09-12 18:01:47,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 743. [2024-09-12 18:01:47,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 690 states have (on average 1.107246376811594) internal successors, (764), 692 states have internal predecessors, (764), 26 states have call successors, (26), 26 states have call predecessors, (26), 25 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 18:01:47,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 815 transitions. [2024-09-12 18:01:47,264 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 815 transitions. Word has length 369 [2024-09-12 18:01:47,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:47,264 INFO L474 AbstractCegarLoop]: Abstraction has 743 states and 815 transitions. [2024-09-12 18:01:47,264 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 3.4545454545454546) internal successors, (266), 75 states have internal predecessors, (266), 24 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:01:47,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:47,265 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 815 transitions. [2024-09-12 18:01:47,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2024-09-12 18:01:47,266 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:47,266 INFO L216 NwaCegarLoop]: trace histogram [24, 24, 24, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:47,280 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2024-09-12 18:01:47,466 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,60 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:47,467 INFO L399 AbstractCegarLoop]: === Iteration 64 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:01:47,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:47,467 INFO L85 PathProgramCache]: Analyzing trace with hash -961332675, now seen corresponding path program 45 times [2024-09-12 18:01:47,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:47,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217961404] [2024-09-12 18:01:47,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:47,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:47,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,536 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 18:01:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:01:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 18:01:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-09-12 18:01:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-09-12 18:01:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-09-12 18:01:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-09-12 18:01:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-09-12 18:01:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,554 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 18:01:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,555 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-09-12 18:01:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 18:01:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,557 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-09-12 18:01:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,558 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-09-12 18:01:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,558 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-09-12 18:01:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2024-09-12 18:01:50,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2024-09-12 18:01:50,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2024-09-12 18:01:50,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-09-12 18:01:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,563 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-09-12 18:01:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-09-12 18:01:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-09-12 18:01:50,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-09-12 18:01:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2024-09-12 18:01:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:50,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4163 backedges. 1863 proven. 1288 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 18:01:50,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:50,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217961404] [2024-09-12 18:01:50,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217961404] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:50,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754524982] [2024-09-12 18:01:50,569 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:01:50,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:50,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:50,570 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:50,571 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-09-12 18:01:50,711 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2024-09-12 18:01:50,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:50,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-09-12 18:01:50,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:50,985 INFO L134 CoverageAnalysis]: Checked inductivity of 4163 backedges. 1863 proven. 1288 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 18:01:50,985 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:53,142 INFO L134 CoverageAnalysis]: Checked inductivity of 4163 backedges. 1863 proven. 1288 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 18:01:53,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754524982] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:53,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:53,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97, 97] total 99 [2024-09-12 18:01:53,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044634793] [2024-09-12 18:01:53,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:53,143 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2024-09-12 18:01:53,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:53,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2024-09-12 18:01:53,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1300, Invalid=8402, Unknown=0, NotChecked=0, Total=9702 [2024-09-12 18:01:53,145 INFO L87 Difference]: Start difference. First operand 743 states and 815 transitions. Second operand has 99 states, 99 states have (on average 2.707070707070707) internal successors, (268), 99 states have internal predecessors, (268), 25 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:01:54,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:54,019 INFO L93 Difference]: Finished difference Result 919 states and 1014 transitions. [2024-09-12 18:01:54,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-09-12 18:01:54,020 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 99 states have (on average 2.707070707070707) internal successors, (268), 99 states have internal predecessors, (268), 25 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Word has length 380 [2024-09-12 18:01:54,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:54,023 INFO L225 Difference]: With dead ends: 919 [2024-09-12 18:01:54,024 INFO L226 Difference]: Without dead ends: 743 [2024-09-12 18:01:54,024 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 904 GetRequests, 713 SyntacticMatches, 94 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9138 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1300, Invalid=8402, Unknown=0, NotChecked=0, Total=9702 [2024-09-12 18:01:54,025 INFO L434 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:54,025 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1276 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:01:54,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2024-09-12 18:01:54,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 743. [2024-09-12 18:01:54,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 690 states have (on average 1.1057971014492753) internal successors, (763), 692 states have internal predecessors, (763), 26 states have call successors, (26), 26 states have call predecessors, (26), 25 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 18:01:54,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 814 transitions. [2024-09-12 18:01:54,132 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 814 transitions. Word has length 380 [2024-09-12 18:01:54,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:54,132 INFO L474 AbstractCegarLoop]: Abstraction has 743 states and 814 transitions. [2024-09-12 18:01:54,132 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 99 states have (on average 2.707070707070707) internal successors, (268), 99 states have internal predecessors, (268), 25 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:01:54,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:54,133 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 814 transitions. [2024-09-12 18:01:54,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-09-12 18:01:54,134 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:54,134 INFO L216 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:54,146 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2024-09-12 18:01:54,334 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2024-09-12 18:01:54,335 INFO L399 AbstractCegarLoop]: === Iteration 65 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:01:54,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:54,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1355105595, now seen corresponding path program 46 times [2024-09-12 18:01:54,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:01:54,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715487907] [2024-09-12 18:01:54,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:01:54,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:01:54,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,772 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:01:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 18:01:56,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,774 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 18:01:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-09-12 18:01:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:01:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-09-12 18:01:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 18:01:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,778 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-09-12 18:01:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 18:01:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 18:01:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-09-12 18:01:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-09-12 18:01:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-09-12 18:01:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-09-12 18:01:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,784 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-09-12 18:01:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-12 18:01:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-09-12 18:01:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2024-09-12 18:01:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2024-09-12 18:01:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,788 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-09-12 18:01:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-09-12 18:01:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-09-12 18:01:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-09-12 18:01:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-09-12 18:01:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:01:56,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4279 backedges. 1334 proven. 1933 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 18:01:56,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:01:56,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715487907] [2024-09-12 18:01:56,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715487907] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:01:56,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023212332] [2024-09-12 18:01:56,794 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:01:56,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:01:56,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:01:56,795 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:01:56,795 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2024-09-12 18:01:56,919 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:01:56,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:01:56,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 861 conjuncts, 101 conjuncts are in the unsatisfiable core [2024-09-12 18:01:56,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:01:57,272 INFO L134 CoverageAnalysis]: Checked inductivity of 4279 backedges. 1450 proven. 1817 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 18:01:57,272 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:01:59,095 INFO L134 CoverageAnalysis]: Checked inductivity of 4279 backedges. 1450 proven. 1817 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 18:01:59,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023212332] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:01:59,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:01:59,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 76, 76] total 80 [2024-09-12 18:01:59,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435126573] [2024-09-12 18:01:59,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:01:59,096 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2024-09-12 18:01:59,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:01:59,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2024-09-12 18:01:59,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=5330, Unknown=0, NotChecked=0, Total=6320 [2024-09-12 18:01:59,098 INFO L87 Difference]: Start difference. First operand 743 states and 814 transitions. Second operand has 80 states, 80 states have (on average 3.4625) internal successors, (277), 78 states have internal predecessors, (277), 25 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:01:59,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:01:59,771 INFO L93 Difference]: Finished difference Result 759 states and 830 transitions. [2024-09-12 18:01:59,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-09-12 18:01:59,772 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 80 states have (on average 3.4625) internal successors, (277), 78 states have internal predecessors, (277), 25 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Word has length 385 [2024-09-12 18:01:59,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:01:59,775 INFO L225 Difference]: With dead ends: 759 [2024-09-12 18:01:59,775 INFO L226 Difference]: Without dead ends: 757 [2024-09-12 18:01:59,776 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 917 GetRequests, 743 SyntacticMatches, 95 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6092 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=996, Invalid=5484, Unknown=0, NotChecked=0, Total=6480 [2024-09-12 18:01:59,776 INFO L434 NwaCegarLoop]: 63 mSDtfsCounter, 10 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 1103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:01:59,776 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 705 Invalid, 1103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:01:59,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2024-09-12 18:01:59,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 754. [2024-09-12 18:01:59,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 699 states have (on average 1.1044349070100143) internal successors, (772), 701 states have internal predecessors, (772), 27 states have call successors, (27), 27 states have call predecessors, (27), 26 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:01:59,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 825 transitions. [2024-09-12 18:01:59,888 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 825 transitions. Word has length 385 [2024-09-12 18:01:59,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:01:59,888 INFO L474 AbstractCegarLoop]: Abstraction has 754 states and 825 transitions. [2024-09-12 18:01:59,888 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 80 states have (on average 3.4625) internal successors, (277), 78 states have internal predecessors, (277), 25 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:01:59,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:01:59,888 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 825 transitions. [2024-09-12 18:01:59,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2024-09-12 18:01:59,890 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:01:59,890 INFO L216 NwaCegarLoop]: trace histogram [25, 25, 25, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:01:59,904 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2024-09-12 18:02:00,090 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,62 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:02:00,091 INFO L399 AbstractCegarLoop]: === Iteration 66 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:02:00,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:00,091 INFO L85 PathProgramCache]: Analyzing trace with hash -421534837, now seen corresponding path program 47 times [2024-09-12 18:02:00,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:02:00,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141237406] [2024-09-12 18:02:00,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:02:00,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:02:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:02:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 18:02:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 18:02:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-09-12 18:02:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:02:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-09-12 18:02:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 18:02:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-09-12 18:02:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 18:02:03,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 18:02:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-09-12 18:02:03,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,690 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-09-12 18:02:03,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-09-12 18:02:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-09-12 18:02:03,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-09-12 18:02:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-12 18:02:03,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-09-12 18:02:03,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2024-09-12 18:02:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,697 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2024-09-12 18:02:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-09-12 18:02:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-09-12 18:02:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-09-12 18:02:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-09-12 18:02:03,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,702 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-09-12 18:02:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2024-09-12 18:02:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:03,705 INFO L134 CoverageAnalysis]: Checked inductivity of 4536 backedges. 2028 proven. 1404 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-09-12 18:02:03,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:02:03,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141237406] [2024-09-12 18:02:03,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141237406] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:02:03,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395696322] [2024-09-12 18:02:03,705 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:02:03,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:02:03,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:02:03,708 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:02:03,709 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2024-09-12 18:02:03,870 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2024-09-12 18:02:03,870 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:02:03,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 100 conjuncts are in the unsatisfiable core [2024-09-12 18:02:03,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:02:04,166 INFO L134 CoverageAnalysis]: Checked inductivity of 4536 backedges. 2028 proven. 1404 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-09-12 18:02:04,167 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:02:06,550 INFO L134 CoverageAnalysis]: Checked inductivity of 4536 backedges. 2028 proven. 1404 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-09-12 18:02:06,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395696322] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:02:06,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:02:06,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 101, 101] total 103 [2024-09-12 18:02:06,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461056260] [2024-09-12 18:02:06,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:02:06,552 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2024-09-12 18:02:06,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:02:06,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2024-09-12 18:02:06,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1404, Invalid=9102, Unknown=0, NotChecked=0, Total=10506 [2024-09-12 18:02:06,554 INFO L87 Difference]: Start difference. First operand 754 states and 825 transitions. Second operand has 103 states, 103 states have (on average 2.70873786407767) internal successors, (279), 103 states have internal predecessors, (279), 26 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 18:02:07,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:02:07,302 INFO L93 Difference]: Finished difference Result 937 states and 1032 transitions. [2024-09-12 18:02:07,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2024-09-12 18:02:07,303 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 103 states have (on average 2.70873786407767) internal successors, (279), 103 states have internal predecessors, (279), 26 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Word has length 396 [2024-09-12 18:02:07,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:02:07,307 INFO L225 Difference]: With dead ends: 937 [2024-09-12 18:02:07,307 INFO L226 Difference]: Without dead ends: 754 [2024-09-12 18:02:07,308 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 942 GetRequests, 743 SyntacticMatches, 98 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9920 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1404, Invalid=9102, Unknown=0, NotChecked=0, Total=10506 [2024-09-12 18:02:07,308 INFO L434 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:02:07,308 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1352 Invalid, 1396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:02:07,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2024-09-12 18:02:07,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2024-09-12 18:02:07,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 699 states have (on average 1.1030042918454936) internal successors, (771), 701 states have internal predecessors, (771), 27 states have call successors, (27), 27 states have call predecessors, (27), 26 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:02:07,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 824 transitions. [2024-09-12 18:02:07,430 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 824 transitions. Word has length 396 [2024-09-12 18:02:07,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:02:07,430 INFO L474 AbstractCegarLoop]: Abstraction has 754 states and 824 transitions. [2024-09-12 18:02:07,431 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 2.70873786407767) internal successors, (279), 103 states have internal predecessors, (279), 26 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 18:02:07,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:07,431 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 824 transitions. [2024-09-12 18:02:07,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-09-12 18:02:07,434 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:02:07,434 INFO L216 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:02:07,454 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2024-09-12 18:02:07,634 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,63 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:02:07,635 INFO L399 AbstractCegarLoop]: === Iteration 67 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:02:07,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:07,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1432005613, now seen corresponding path program 48 times [2024-09-12 18:02:07,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:02:07,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631405825] [2024-09-12 18:02:07,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:02:07,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:02:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:02:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 18:02:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,403 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 18:02:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,404 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 18:02:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 18:02:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-09-12 18:02:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-09-12 18:02:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-09-12 18:02:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-09-12 18:02:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-09-12 18:02:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-09-12 18:02:10,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 18:02:10,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-09-12 18:02:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-09-12 18:02:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2024-09-12 18:02:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-09-12 18:02:10,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-09-12 18:02:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-09-12 18:02:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-09-12 18:02:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-09-12 18:02:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-09-12 18:02:10,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-09-12 18:02:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-09-12 18:02:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-09-12 18:02:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2024-09-12 18:02:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:10,424 INFO L134 CoverageAnalysis]: Checked inductivity of 4657 backedges. 1452 proven. 2101 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-09-12 18:02:10,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:02:10,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631405825] [2024-09-12 18:02:10,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631405825] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:02:10,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018300847] [2024-09-12 18:02:10,425 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:02:10,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:02:10,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:02:10,427 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:02:10,428 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2024-09-12 18:02:10,576 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 26 check-sat command(s) [2024-09-12 18:02:10,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:02:10,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 105 conjuncts are in the unsatisfiable core [2024-09-12 18:02:10,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:02:10,934 INFO L134 CoverageAnalysis]: Checked inductivity of 4657 backedges. 1573 proven. 1980 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-09-12 18:02:10,934 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:02:12,816 INFO L134 CoverageAnalysis]: Checked inductivity of 4657 backedges. 1573 proven. 1980 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-09-12 18:02:12,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018300847] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:02:12,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:02:12,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 79, 79] total 83 [2024-09-12 18:02:12,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48474104] [2024-09-12 18:02:12,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:02:12,817 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2024-09-12 18:02:12,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:02:12,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2024-09-12 18:02:12,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1068, Invalid=5738, Unknown=0, NotChecked=0, Total=6806 [2024-09-12 18:02:12,819 INFO L87 Difference]: Start difference. First operand 754 states and 824 transitions. Second operand has 83 states, 83 states have (on average 3.4698795180722892) internal successors, (288), 81 states have internal predecessors, (288), 26 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 18:02:13,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:02:13,520 INFO L93 Difference]: Finished difference Result 770 states and 840 transitions. [2024-09-12 18:02:13,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-09-12 18:02:13,521 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 83 states have (on average 3.4698795180722892) internal successors, (288), 81 states have internal predecessors, (288), 26 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Word has length 401 [2024-09-12 18:02:13,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:02:13,524 INFO L225 Difference]: With dead ends: 770 [2024-09-12 18:02:13,524 INFO L226 Difference]: Without dead ends: 768 [2024-09-12 18:02:13,524 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 955 GetRequests, 774 SyntacticMatches, 99 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6597 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1074, Invalid=5898, Unknown=0, NotChecked=0, Total=6972 [2024-09-12 18:02:13,524 INFO L434 NwaCegarLoop]: 65 mSDtfsCounter, 10 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 1581 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:02:13,524 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1170 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1581 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:02:13,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2024-09-12 18:02:13,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 765. [2024-09-12 18:02:13,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 708 states have (on average 1.1016949152542372) internal successors, (780), 710 states have internal predecessors, (780), 28 states have call successors, (28), 28 states have call predecessors, (28), 27 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-09-12 18:02:13,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 835 transitions. [2024-09-12 18:02:13,631 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 835 transitions. Word has length 401 [2024-09-12 18:02:13,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:02:13,631 INFO L474 AbstractCegarLoop]: Abstraction has 765 states and 835 transitions. [2024-09-12 18:02:13,632 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 3.4698795180722892) internal successors, (288), 81 states have internal predecessors, (288), 26 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 18:02:13,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:13,632 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 835 transitions. [2024-09-12 18:02:13,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-09-12 18:02:13,633 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:02:13,633 INFO L216 NwaCegarLoop]: trace histogram [26, 26, 26, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:02:13,647 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2024-09-12 18:02:13,834 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2024-09-12 18:02:13,834 INFO L399 AbstractCegarLoop]: === Iteration 68 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:02:13,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:13,834 INFO L85 PathProgramCache]: Analyzing trace with hash 153881981, now seen corresponding path program 49 times [2024-09-12 18:02:13,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:02:13,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603738738] [2024-09-12 18:02:13,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:02:13,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:02:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:02:17,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 18:02:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,375 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-09-12 18:02:17,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,376 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-09-12 18:02:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,376 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 18:02:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-09-12 18:02:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-09-12 18:02:17,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-09-12 18:02:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-09-12 18:02:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-09-12 18:02:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-09-12 18:02:17,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,384 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 18:02:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,386 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-09-12 18:02:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-09-12 18:02:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2024-09-12 18:02:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2024-09-12 18:02:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-09-12 18:02:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-09-12 18:02:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-09-12 18:02:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-09-12 18:02:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-09-12 18:02:17,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-09-12 18:02:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-09-12 18:02:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-09-12 18:02:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,399 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2024-09-12 18:02:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2024-09-12 18:02:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,402 INFO L134 CoverageAnalysis]: Checked inductivity of 4925 backedges. 2200 proven. 1525 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-09-12 18:02:17,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:02:17,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603738738] [2024-09-12 18:02:17,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603738738] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:02:17,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332105204] [2024-09-12 18:02:17,402 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 18:02:17,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:02:17,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:02:17,404 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:02:17,406 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2024-09-12 18:02:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:17,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 104 conjuncts are in the unsatisfiable core [2024-09-12 18:02:17,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:02:17,836 INFO L134 CoverageAnalysis]: Checked inductivity of 4925 backedges. 2200 proven. 1525 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-09-12 18:02:17,836 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:02:20,335 INFO L134 CoverageAnalysis]: Checked inductivity of 4925 backedges. 2200 proven. 1525 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-09-12 18:02:20,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332105204] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:02:20,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:02:20,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [105, 105, 105] total 107 [2024-09-12 18:02:20,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983762185] [2024-09-12 18:02:20,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:02:20,337 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2024-09-12 18:02:20,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:02:20,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2024-09-12 18:02:20,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1512, Invalid=9830, Unknown=0, NotChecked=0, Total=11342 [2024-09-12 18:02:20,339 INFO L87 Difference]: Start difference. First operand 765 states and 835 transitions. Second operand has 107 states, 107 states have (on average 2.710280373831776) internal successors, (290), 107 states have internal predecessors, (290), 27 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:02:21,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:02:21,071 INFO L93 Difference]: Finished difference Result 955 states and 1050 transitions. [2024-09-12 18:02:21,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2024-09-12 18:02:21,071 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 107 states have (on average 2.710280373831776) internal successors, (290), 107 states have internal predecessors, (290), 27 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Word has length 412 [2024-09-12 18:02:21,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:02:21,074 INFO L225 Difference]: With dead ends: 955 [2024-09-12 18:02:21,075 INFO L226 Difference]: Without dead ends: 765 [2024-09-12 18:02:21,075 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 980 GetRequests, 773 SyntacticMatches, 102 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10734 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1512, Invalid=9830, Unknown=0, NotChecked=0, Total=11342 [2024-09-12 18:02:21,076 INFO L434 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1394 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:02:21,076 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1394 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:02:21,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-09-12 18:02:21,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 765. [2024-09-12 18:02:21,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 708 states have (on average 1.1002824858757063) internal successors, (779), 710 states have internal predecessors, (779), 28 states have call successors, (28), 28 states have call predecessors, (28), 27 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-09-12 18:02:21,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 834 transitions. [2024-09-12 18:02:21,181 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 834 transitions. Word has length 412 [2024-09-12 18:02:21,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:02:21,181 INFO L474 AbstractCegarLoop]: Abstraction has 765 states and 834 transitions. [2024-09-12 18:02:21,181 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 2.710280373831776) internal successors, (290), 107 states have internal predecessors, (290), 27 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:02:21,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:21,181 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 834 transitions. [2024-09-12 18:02:21,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2024-09-12 18:02:21,183 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:02:21,183 INFO L216 NwaCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:02:21,195 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2024-09-12 18:02:21,383 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,65 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:02:21,383 INFO L399 AbstractCegarLoop]: === Iteration 69 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:02:21,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:21,384 INFO L85 PathProgramCache]: Analyzing trace with hash -833655291, now seen corresponding path program 50 times [2024-09-12 18:02:21,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:02:21,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121592577] [2024-09-12 18:02:21,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:02:21,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:02:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:02:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 18:02:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 18:02:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,452 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 18:02:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 18:02:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 18:02:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 18:02:24,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 18:02:24,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-09-12 18:02:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-09-12 18:02:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-09-12 18:02:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-09-12 18:02:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-09-12 18:02:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-09-12 18:02:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 18:02:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2024-09-12 18:02:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,466 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-09-12 18:02:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-09-12 18:02:24,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-09-12 18:02:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-09-12 18:02:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,469 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-09-12 18:02:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-09-12 18:02:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,471 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-09-12 18:02:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-09-12 18:02:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,474 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2024-09-12 18:02:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2024-09-12 18:02:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:24,476 INFO L134 CoverageAnalysis]: Checked inductivity of 5051 backedges. 1575 proven. 2276 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-09-12 18:02:24,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:02:24,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121592577] [2024-09-12 18:02:24,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121592577] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:02:24,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793166147] [2024-09-12 18:02:24,477 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:02:24,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:02:24,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:02:24,478 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:02:24,479 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-09-12 18:02:24,608 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:02:24,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:02:24,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 106 conjuncts are in the unsatisfiable core [2024-09-12 18:02:24,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:02:24,968 INFO L134 CoverageAnalysis]: Checked inductivity of 5051 backedges. 1701 proven. 2150 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-09-12 18:02:24,968 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:02:27,062 INFO L134 CoverageAnalysis]: Checked inductivity of 5051 backedges. 1701 proven. 2150 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-09-12 18:02:27,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793166147] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:02:27,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:02:27,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 82, 82] total 86 [2024-09-12 18:02:27,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48520657] [2024-09-12 18:02:27,063 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:02:27,063 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2024-09-12 18:02:27,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:02:27,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2024-09-12 18:02:27,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1149, Invalid=6161, Unknown=0, NotChecked=0, Total=7310 [2024-09-12 18:02:27,065 INFO L87 Difference]: Start difference. First operand 765 states and 834 transitions. Second operand has 86 states, 86 states have (on average 3.4767441860465116) internal successors, (299), 84 states have internal predecessors, (299), 27 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:02:27,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:02:27,785 INFO L93 Difference]: Finished difference Result 781 states and 850 transitions. [2024-09-12 18:02:27,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2024-09-12 18:02:27,785 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 86 states have (on average 3.4767441860465116) internal successors, (299), 84 states have internal predecessors, (299), 27 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Word has length 417 [2024-09-12 18:02:27,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:02:27,788 INFO L225 Difference]: With dead ends: 781 [2024-09-12 18:02:27,788 INFO L226 Difference]: Without dead ends: 779 [2024-09-12 18:02:27,789 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 993 GetRequests, 803 SyntacticMatches, 105 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7274 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1155, Invalid=6327, Unknown=0, NotChecked=0, Total=7482 [2024-09-12 18:02:27,789 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 12 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:02:27,789 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1146 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1455 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:02:27,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2024-09-12 18:02:27,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 776. [2024-09-12 18:02:27,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 717 states have (on average 1.099023709902371) internal successors, (788), 719 states have internal predecessors, (788), 29 states have call successors, (29), 29 states have call predecessors, (29), 28 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:02:27,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 845 transitions. [2024-09-12 18:02:27,900 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 845 transitions. Word has length 417 [2024-09-12 18:02:27,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:02:27,900 INFO L474 AbstractCegarLoop]: Abstraction has 776 states and 845 transitions. [2024-09-12 18:02:27,900 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 3.4767441860465116) internal successors, (299), 84 states have internal predecessors, (299), 27 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:02:27,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:27,901 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 845 transitions. [2024-09-12 18:02:27,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-09-12 18:02:27,903 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:02:27,903 INFO L216 NwaCegarLoop]: trace histogram [27, 27, 27, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:02:27,918 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2024-09-12 18:02:28,104 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,66 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:02:28,104 INFO L399 AbstractCegarLoop]: === Iteration 70 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:02:28,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:28,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1985390667, now seen corresponding path program 51 times [2024-09-12 18:02:28,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:02:28,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492491616] [2024-09-12 18:02:28,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:02:28,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:02:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:02:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 18:02:31,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 18:02:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-09-12 18:02:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 18:02:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 18:02:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,967 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 18:02:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 18:02:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-09-12 18:02:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-09-12 18:02:31,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,970 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-09-12 18:02:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,971 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-09-12 18:02:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,972 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-09-12 18:02:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,973 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-09-12 18:02:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,974 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 18:02:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,975 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2024-09-12 18:02:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-09-12 18:02:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,978 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-09-12 18:02:31,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-09-12 18:02:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-09-12 18:02:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-09-12 18:02:31,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-09-12 18:02:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,983 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-09-12 18:02:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,983 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-09-12 18:02:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2024-09-12 18:02:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,985 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2024-09-12 18:02:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2024-09-12 18:02:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:31,988 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 2379 proven. 1651 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-09-12 18:02:31,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:02:31,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492491616] [2024-09-12 18:02:31,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492491616] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:02:31,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240435459] [2024-09-12 18:02:31,988 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:02:31,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:02:31,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:02:31,990 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:02:31,992 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-09-12 18:02:32,152 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2024-09-12 18:02:32,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:02:32,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 953 conjuncts, 108 conjuncts are in the unsatisfiable core [2024-09-12 18:02:32,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:02:32,461 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 2379 proven. 1651 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-09-12 18:02:32,461 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:02:35,319 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 2379 proven. 1651 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-09-12 18:02:35,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240435459] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:02:35,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:02:35,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [109, 109, 109] total 111 [2024-09-12 18:02:35,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593704374] [2024-09-12 18:02:35,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:02:35,321 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 111 states [2024-09-12 18:02:35,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:02:35,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2024-09-12 18:02:35,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1624, Invalid=10586, Unknown=0, NotChecked=0, Total=12210 [2024-09-12 18:02:35,323 INFO L87 Difference]: Start difference. First operand 776 states and 845 transitions. Second operand has 111 states, 111 states have (on average 2.7117117117117115) internal successors, (301), 111 states have internal predecessors, (301), 28 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-09-12 18:02:36,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:02:36,276 INFO L93 Difference]: Finished difference Result 973 states and 1068 transitions. [2024-09-12 18:02:36,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2024-09-12 18:02:36,276 INFO L78 Accepts]: Start accepts. Automaton has has 111 states, 111 states have (on average 2.7117117117117115) internal successors, (301), 111 states have internal predecessors, (301), 28 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Word has length 428 [2024-09-12 18:02:36,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:02:36,280 INFO L225 Difference]: With dead ends: 973 [2024-09-12 18:02:36,280 INFO L226 Difference]: Without dead ends: 776 [2024-09-12 18:02:36,281 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1018 GetRequests, 803 SyntacticMatches, 106 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11580 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1624, Invalid=10586, Unknown=0, NotChecked=0, Total=12210 [2024-09-12 18:02:36,281 INFO L434 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 2114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2044 SdHoareTripleChecker+Invalid, 2114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:02:36,281 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2044 Invalid, 2114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2114 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:02:36,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2024-09-12 18:02:36,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 776. [2024-09-12 18:02:36,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 717 states have (on average 1.097629009762901) internal successors, (787), 719 states have internal predecessors, (787), 29 states have call successors, (29), 29 states have call predecessors, (29), 28 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:02:36,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 844 transitions. [2024-09-12 18:02:36,405 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 844 transitions. Word has length 428 [2024-09-12 18:02:36,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:02:36,405 INFO L474 AbstractCegarLoop]: Abstraction has 776 states and 844 transitions. [2024-09-12 18:02:36,406 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 111 states, 111 states have (on average 2.7117117117117115) internal successors, (301), 111 states have internal predecessors, (301), 28 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-09-12 18:02:36,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:36,406 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 844 transitions. [2024-09-12 18:02:36,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-09-12 18:02:36,407 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:02:36,407 INFO L216 NwaCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:02:36,420 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2024-09-12 18:02:36,608 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2024-09-12 18:02:36,608 INFO L399 AbstractCegarLoop]: === Iteration 71 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:02:36,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:36,608 INFO L85 PathProgramCache]: Analyzing trace with hash 586676435, now seen corresponding path program 52 times [2024-09-12 18:02:36,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:02:36,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355588805] [2024-09-12 18:02:36,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:02:36,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:02:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:02:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 18:02:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 18:02:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-09-12 18:02:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-09-12 18:02:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:02:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-09-12 18:02:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 18:02:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-09-12 18:02:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-09-12 18:02:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 18:02:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 18:02:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 18:02:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,910 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-09-12 18:02:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,910 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-09-12 18:02:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2024-09-12 18:02:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,912 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-09-12 18:02:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,913 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-09-12 18:02:39,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,915 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-09-12 18:02:39,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-09-12 18:02:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-09-12 18:02:39,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,919 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-09-12 18:02:39,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2024-09-12 18:02:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2024-09-12 18:02:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,923 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2024-09-12 18:02:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2024-09-12 18:02:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2024-09-12 18:02:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:39,928 INFO L134 CoverageAnalysis]: Checked inductivity of 5461 backedges. 1703 proven. 2458 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-09-12 18:02:39,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:02:39,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355588805] [2024-09-12 18:02:39,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355588805] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:02:39,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272254385] [2024-09-12 18:02:39,928 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:02:39,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:02:39,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:02:39,930 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:02:39,932 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2024-09-12 18:02:40,093 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:02:40,094 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:02:40,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 118 conjuncts are in the unsatisfiable core [2024-09-12 18:02:40,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:02:40,489 INFO L134 CoverageAnalysis]: Checked inductivity of 5461 backedges. 1833 proven. 2403 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-09-12 18:02:40,489 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:02:42,747 INFO L134 CoverageAnalysis]: Checked inductivity of 5461 backedges. 1806 proven. 2430 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-09-12 18:02:42,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272254385] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:02:42,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:02:42,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 87, 87] total 92 [2024-09-12 18:02:42,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133279631] [2024-09-12 18:02:42,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:02:42,748 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2024-09-12 18:02:42,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:02:42,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2024-09-12 18:02:42,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1244, Invalid=7128, Unknown=0, NotChecked=0, Total=8372 [2024-09-12 18:02:42,751 INFO L87 Difference]: Start difference. First operand 776 states and 844 transitions. Second operand has 92 states, 92 states have (on average 3.467391304347826) internal successors, (319), 91 states have internal predecessors, (319), 29 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (29), 27 states have call predecessors, (29), 28 states have call successors, (29) [2024-09-12 18:02:43,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:02:43,617 INFO L93 Difference]: Finished difference Result 789 states and 857 transitions. [2024-09-12 18:02:43,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2024-09-12 18:02:43,617 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 92 states have (on average 3.467391304347826) internal successors, (319), 91 states have internal predecessors, (319), 29 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (29), 27 states have call predecessors, (29), 28 states have call successors, (29) Word has length 433 [2024-09-12 18:02:43,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:02:43,620 INFO L225 Difference]: With dead ends: 789 [2024-09-12 18:02:43,620 INFO L226 Difference]: Without dead ends: 787 [2024-09-12 18:02:43,621 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1031 GetRequests, 833 SyntacticMatches, 107 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7962 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1252, Invalid=7304, Unknown=0, NotChecked=0, Total=8556 [2024-09-12 18:02:43,621 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 9 mSDsluCounter, 1477 mSDsCounter, 0 mSdLazyCounter, 1987 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1545 SdHoareTripleChecker+Invalid, 1990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:02:43,621 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1545 Invalid, 1990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1987 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:02:43,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2024-09-12 18:02:43,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 787. [2024-09-12 18:02:43,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 726 states have (on average 1.0964187327823691) internal successors, (796), 728 states have internal predecessors, (796), 30 states have call successors, (30), 30 states have call predecessors, (30), 29 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 18:02:43,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 855 transitions. [2024-09-12 18:02:43,731 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 855 transitions. Word has length 433 [2024-09-12 18:02:43,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:02:43,731 INFO L474 AbstractCegarLoop]: Abstraction has 787 states and 855 transitions. [2024-09-12 18:02:43,732 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 92 states have (on average 3.467391304347826) internal successors, (319), 91 states have internal predecessors, (319), 29 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (29), 27 states have call predecessors, (29), 28 states have call successors, (29) [2024-09-12 18:02:43,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:43,732 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 855 transitions. [2024-09-12 18:02:43,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2024-09-12 18:02:43,733 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:02:43,733 INFO L216 NwaCegarLoop]: trace histogram [28, 28, 28, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:02:43,746 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2024-09-12 18:02:43,934 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,68 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:02:43,934 INFO L399 AbstractCegarLoop]: === Iteration 72 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:02:43,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:43,934 INFO L85 PathProgramCache]: Analyzing trace with hash 482799805, now seen corresponding path program 53 times [2024-09-12 18:02:43,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:02:43,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715533972] [2024-09-12 18:02:43,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:02:43,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:02:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:02:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 18:02:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 18:02:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-09-12 18:02:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-09-12 18:02:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:02:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-09-12 18:02:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 18:02:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-09-12 18:02:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-09-12 18:02:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 18:02:48,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,046 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 18:02:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 18:02:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,048 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-09-12 18:02:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-09-12 18:02:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2024-09-12 18:02:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-09-12 18:02:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,053 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-09-12 18:02:48,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-09-12 18:02:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-09-12 18:02:48,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,056 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-09-12 18:02:48,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,057 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-09-12 18:02:48,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,058 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2024-09-12 18:02:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2024-09-12 18:02:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2024-09-12 18:02:48,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2024-09-12 18:02:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2024-09-12 18:02:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,062 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2024-09-12 18:02:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:48,064 INFO L134 CoverageAnalysis]: Checked inductivity of 5751 backedges. 2565 proven. 1782 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-09-12 18:02:48,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:02:48,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715533972] [2024-09-12 18:02:48,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715533972] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:02:48,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575331359] [2024-09-12 18:02:48,064 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:02:48,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:02:48,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:02:48,066 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:02:48,066 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2024-09-12 18:02:48,250 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 28 check-sat command(s) [2024-09-12 18:02:48,250 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:02:48,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 988 conjuncts, 112 conjuncts are in the unsatisfiable core [2024-09-12 18:02:48,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:02:48,569 INFO L134 CoverageAnalysis]: Checked inductivity of 5751 backedges. 2565 proven. 1782 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-09-12 18:02:48,569 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:02:51,408 INFO L134 CoverageAnalysis]: Checked inductivity of 5751 backedges. 2565 proven. 1782 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-09-12 18:02:51,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575331359] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:02:51,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:02:51,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [113, 113, 113] total 115 [2024-09-12 18:02:51,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734308315] [2024-09-12 18:02:51,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:02:51,409 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 115 states [2024-09-12 18:02:51,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:02:51,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2024-09-12 18:02:51,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1740, Invalid=11370, Unknown=0, NotChecked=0, Total=13110 [2024-09-12 18:02:51,411 INFO L87 Difference]: Start difference. First operand 787 states and 855 transitions. Second operand has 115 states, 115 states have (on average 2.7130434782608694) internal successors, (312), 115 states have internal predecessors, (312), 29 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:02:52,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:02:52,184 INFO L93 Difference]: Finished difference Result 991 states and 1086 transitions. [2024-09-12 18:02:52,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2024-09-12 18:02:52,184 INFO L78 Accepts]: Start accepts. Automaton has has 115 states, 115 states have (on average 2.7130434782608694) internal successors, (312), 115 states have internal predecessors, (312), 29 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Word has length 444 [2024-09-12 18:02:52,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:02:52,187 INFO L225 Difference]: With dead ends: 991 [2024-09-12 18:02:52,187 INFO L226 Difference]: Without dead ends: 787 [2024-09-12 18:02:52,188 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1056 GetRequests, 833 SyntacticMatches, 110 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12458 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=1740, Invalid=11370, Unknown=0, NotChecked=0, Total=13110 [2024-09-12 18:02:52,189 INFO L434 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 1524 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:02:52,189 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1446 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1524 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:02:52,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2024-09-12 18:02:52,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 787. [2024-09-12 18:02:52,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 726 states have (on average 1.0950413223140496) internal successors, (795), 728 states have internal predecessors, (795), 30 states have call successors, (30), 30 states have call predecessors, (30), 29 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 18:02:52,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 854 transitions. [2024-09-12 18:02:52,302 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 854 transitions. Word has length 444 [2024-09-12 18:02:52,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:02:52,302 INFO L474 AbstractCegarLoop]: Abstraction has 787 states and 854 transitions. [2024-09-12 18:02:52,302 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 115 states, 115 states have (on average 2.7130434782608694) internal successors, (312), 115 states have internal predecessors, (312), 29 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:02:52,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:52,303 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 854 transitions. [2024-09-12 18:02:52,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2024-09-12 18:02:52,304 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:02:52,304 INFO L216 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 27, 27, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:02:52,318 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2024-09-12 18:02:52,505 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,69 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:02:52,505 INFO L399 AbstractCegarLoop]: === Iteration 73 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:02:52,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:52,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1460023621, now seen corresponding path program 54 times [2024-09-12 18:02:52,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:02:52,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840374912] [2024-09-12 18:02:52,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:02:52,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:02:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:02:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,839 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-09-12 18:02:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 18:02:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,841 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:02:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 18:02:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-09-12 18:02:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,843 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 18:02:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 18:02:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,845 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-09-12 18:02:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-09-12 18:02:55,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-09-12 18:02:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-09-12 18:02:55,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 18:02:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,849 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-09-12 18:02:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-09-12 18:02:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2024-09-12 18:02:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2024-09-12 18:02:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,854 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2024-09-12 18:02:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-09-12 18:02:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-09-12 18:02:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,858 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-09-12 18:02:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-09-12 18:02:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2024-09-12 18:02:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2024-09-12 18:02:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2024-09-12 18:02:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2024-09-12 18:02:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2024-09-12 18:02:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2024-09-12 18:02:55,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:02:55,869 INFO L134 CoverageAnalysis]: Checked inductivity of 5887 backedges. 1836 proven. 2647 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-09-12 18:02:55,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:02:55,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840374912] [2024-09-12 18:02:55,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840374912] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:02:55,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304896102] [2024-09-12 18:02:55,870 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:02:55,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:02:55,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:02:55,872 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:02:55,873 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2024-09-12 18:02:56,053 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 29 check-sat command(s) [2024-09-12 18:02:56,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:02:56,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 117 conjuncts are in the unsatisfiable core [2024-09-12 18:02:56,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:02:56,450 INFO L134 CoverageAnalysis]: Checked inductivity of 5887 backedges. 1972 proven. 2511 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-09-12 18:02:56,450 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:02:58,780 INFO L134 CoverageAnalysis]: Checked inductivity of 5887 backedges. 1972 proven. 2511 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-09-12 18:02:58,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304896102] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:02:58,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:02:58,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [88, 88, 88] total 92 [2024-09-12 18:02:58,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468658934] [2024-09-12 18:02:58,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:02:58,781 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2024-09-12 18:02:58,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:02:58,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2024-09-12 18:02:58,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1320, Invalid=7052, Unknown=0, NotChecked=0, Total=8372 [2024-09-12 18:02:58,782 INFO L87 Difference]: Start difference. First operand 787 states and 854 transitions. Second operand has 92 states, 92 states have (on average 3.489130434782609) internal successors, (321), 90 states have internal predecessors, (321), 29 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:02:59,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:02:59,565 INFO L93 Difference]: Finished difference Result 803 states and 870 transitions. [2024-09-12 18:02:59,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-09-12 18:02:59,566 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 92 states have (on average 3.489130434782609) internal successors, (321), 90 states have internal predecessors, (321), 29 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Word has length 449 [2024-09-12 18:02:59,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:02:59,570 INFO L225 Difference]: With dead ends: 803 [2024-09-12 18:02:59,570 INFO L226 Difference]: Without dead ends: 801 [2024-09-12 18:02:59,571 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1069 GetRequests, 867 SyntacticMatches, 111 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8232 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1326, Invalid=7230, Unknown=0, NotChecked=0, Total=8556 [2024-09-12 18:02:59,571 INFO L434 NwaCegarLoop]: 71 mSDtfsCounter, 9 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 1712 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:02:59,571 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1242 Invalid, 1713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1712 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:02:59,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2024-09-12 18:02:59,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 798. [2024-09-12 18:02:59,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 735 states have (on average 1.0938775510204082) internal successors, (804), 737 states have internal predecessors, (804), 31 states have call successors, (31), 31 states have call predecessors, (31), 30 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-09-12 18:02:59,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 865 transitions. [2024-09-12 18:02:59,707 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 865 transitions. Word has length 449 [2024-09-12 18:02:59,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:02:59,707 INFO L474 AbstractCegarLoop]: Abstraction has 798 states and 865 transitions. [2024-09-12 18:02:59,707 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 92 states have (on average 3.489130434782609) internal successors, (321), 90 states have internal predecessors, (321), 29 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:02:59,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:59,708 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 865 transitions. [2024-09-12 18:02:59,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-09-12 18:02:59,709 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:02:59,709 INFO L216 NwaCegarLoop]: trace histogram [29, 29, 29, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:02:59,723 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0 [2024-09-12 18:02:59,910 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,70 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:02:59,910 INFO L399 AbstractCegarLoop]: === Iteration 74 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:02:59,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:02:59,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1119789813, now seen corresponding path program 55 times [2024-09-12 18:02:59,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:02:59,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130049384] [2024-09-12 18:02:59,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:02:59,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:02:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,672 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:03:04,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-09-12 18:03:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,674 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 18:03:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:03:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-09-12 18:03:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-09-12 18:03:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 18:03:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 18:03:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-09-12 18:03:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-09-12 18:03:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-09-12 18:03:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-09-12 18:03:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 18:03:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-09-12 18:03:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-09-12 18:03:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2024-09-12 18:03:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2024-09-12 18:03:04,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2024-09-12 18:03:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-09-12 18:03:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-09-12 18:03:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-09-12 18:03:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,690 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-09-12 18:03:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2024-09-12 18:03:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2024-09-12 18:03:04,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2024-09-12 18:03:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2024-09-12 18:03:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2024-09-12 18:03:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2024-09-12 18:03:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2024-09-12 18:03:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,698 INFO L134 CoverageAnalysis]: Checked inductivity of 6188 backedges. 2758 proven. 1918 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-09-12 18:03:04,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:03:04,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130049384] [2024-09-12 18:03:04,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130049384] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:03:04,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940758409] [2024-09-12 18:03:04,698 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 18:03:04,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:03:04,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:03:04,699 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:03:04,701 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2024-09-12 18:03:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:04,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 116 conjuncts are in the unsatisfiable core [2024-09-12 18:03:04,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:03:05,168 INFO L134 CoverageAnalysis]: Checked inductivity of 6188 backedges. 2758 proven. 1918 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-09-12 18:03:05,168 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:03:08,235 INFO L134 CoverageAnalysis]: Checked inductivity of 6188 backedges. 2758 proven. 1918 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-09-12 18:03:08,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1940758409] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:03:08,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:03:08,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [117, 117, 117] total 119 [2024-09-12 18:03:08,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502670650] [2024-09-12 18:03:08,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:03:08,237 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2024-09-12 18:03:08,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:03:08,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2024-09-12 18:03:08,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1860, Invalid=12182, Unknown=0, NotChecked=0, Total=14042 [2024-09-12 18:03:08,238 INFO L87 Difference]: Start difference. First operand 798 states and 865 transitions. Second operand has 119 states, 119 states have (on average 2.7142857142857144) internal successors, (323), 119 states have internal predecessors, (323), 30 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 18:03:09,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:03:09,366 INFO L93 Difference]: Finished difference Result 1009 states and 1104 transitions. [2024-09-12 18:03:09,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2024-09-12 18:03:09,366 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 119 states have (on average 2.7142857142857144) internal successors, (323), 119 states have internal predecessors, (323), 30 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Word has length 460 [2024-09-12 18:03:09,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:03:09,370 INFO L225 Difference]: With dead ends: 1009 [2024-09-12 18:03:09,370 INFO L226 Difference]: Without dead ends: 798 [2024-09-12 18:03:09,372 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1094 GetRequests, 863 SyntacticMatches, 114 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13368 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1860, Invalid=12182, Unknown=0, NotChecked=0, Total=14042 [2024-09-12 18:03:09,372 INFO L434 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 2326 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2450 SdHoareTripleChecker+Invalid, 2406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:03:09,372 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2450 Invalid, 2406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:03:09,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-09-12 18:03:09,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2024-09-12 18:03:09,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 735 states have (on average 1.092517006802721) internal successors, (803), 737 states have internal predecessors, (803), 31 states have call successors, (31), 31 states have call predecessors, (31), 30 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-09-12 18:03:09,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 864 transitions. [2024-09-12 18:03:09,544 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 864 transitions. Word has length 460 [2024-09-12 18:03:09,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:03:09,544 INFO L474 AbstractCegarLoop]: Abstraction has 798 states and 864 transitions. [2024-09-12 18:03:09,544 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 119 states have (on average 2.7142857142857144) internal successors, (323), 119 states have internal predecessors, (323), 30 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 18:03:09,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:09,544 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 864 transitions. [2024-09-12 18:03:09,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-09-12 18:03:09,546 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:03:09,546 INFO L216 NwaCegarLoop]: trace histogram [29, 29, 29, 29, 29, 29, 29, 29, 28, 28, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:03:09,561 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2024-09-12 18:03:09,747 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,71 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:03:09,747 INFO L399 AbstractCegarLoop]: === Iteration 75 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:03:09,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:03:09,747 INFO L85 PathProgramCache]: Analyzing trace with hash -348222061, now seen corresponding path program 56 times [2024-09-12 18:03:09,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:03:09,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156871624] [2024-09-12 18:03:09,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:03:09,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:03:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,403 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:03:13,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,404 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 18:03:13,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-09-12 18:03:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:03:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 18:03:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-09-12 18:03:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-09-12 18:03:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 18:03:13,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-09-12 18:03:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-12 18:03:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 18:03:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 18:03:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-09-12 18:03:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-09-12 18:03:13,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-09-12 18:03:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2024-09-12 18:03:13,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2024-09-12 18:03:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-09-12 18:03:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-09-12 18:03:13,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-09-12 18:03:13,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2024-09-12 18:03:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-09-12 18:03:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2024-09-12 18:03:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2024-09-12 18:03:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2024-09-12 18:03:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2024-09-12 18:03:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2024-09-12 18:03:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2024-09-12 18:03:13,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2024-09-12 18:03:13,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:03:13,429 INFO L134 CoverageAnalysis]: Checked inductivity of 6329 backedges. 1974 proven. 2843 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-09-12 18:03:13,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:03:13,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156871624] [2024-09-12 18:03:13,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156871624] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:03:13,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481305317] [2024-09-12 18:03:13,429 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:03:13,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:03:13,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:03:13,432 INFO L229 MonitoredProcess]: Starting monitored process 72 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:03:13,434 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2024-09-12 18:03:13,576 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:03:13,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:03:13,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 118 conjuncts are in the unsatisfiable core [2024-09-12 18:03:13,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:03:13,965 INFO L134 CoverageAnalysis]: Checked inductivity of 6329 backedges. 2115 proven. 2702 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-09-12 18:03:13,965 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:03:16,512 INFO L134 CoverageAnalysis]: Checked inductivity of 6329 backedges. 2115 proven. 2702 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-09-12 18:03:16,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481305317] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:03:16,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:03:16,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [91, 91, 91] total 95 [2024-09-12 18:03:16,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191543614] [2024-09-12 18:03:16,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:03:16,514 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2024-09-12 18:03:16,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:03:16,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2024-09-12 18:03:16,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1410, Invalid=7520, Unknown=0, NotChecked=0, Total=8930 [2024-09-12 18:03:16,515 INFO L87 Difference]: Start difference. First operand 798 states and 864 transitions. Second operand has 95 states, 95 states have (on average 3.4947368421052634) internal successors, (332), 93 states have internal predecessors, (332), 30 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29)