./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive/recHanoi01.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e378df2c Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/recHanoi01.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85b02fad28964214b0cd332ac12fce3136c6c5e9247130ab67f1c2c3baea22f9 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.contract-modifies-e378df2-m [2024-10-15 15:09:37,168 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 15:09:37,220 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-15 15:09:37,225 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 15:09:37,226 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 15:09:37,245 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 15:09:37,246 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 15:09:37,246 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 15:09:37,246 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 15:09:37,247 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 15:09:37,248 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-15 15:09:37,248 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-15 15:09:37,248 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 15:09:37,249 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 15:09:37,250 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 15:09:37,250 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 15:09:37,251 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-15 15:09:37,251 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 15:09:37,251 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-15 15:09:37,251 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 15:09:37,251 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 15:09:37,254 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-15 15:09:37,254 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-15 15:09:37,254 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-15 15:09:37,255 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 15:09:37,255 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 15:09:37,255 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 15:09:37,255 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 15:09:37,255 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 15:09:37,255 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 15:09:37,255 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-15 15:09:37,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-15 15:09:37,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 15:09:37,256 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-15 15:09:37,256 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-15 15:09:37,256 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-15 15:09:37,256 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-15 15:09:37,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-15 15:09:37,257 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-15 15:09:37,257 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-15 15:09:37,258 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-15 15:09:37,259 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-15 15:09:37,259 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/automizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85b02fad28964214b0cd332ac12fce3136c6c5e9247130ab67f1c2c3baea22f9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false [2024-10-15 15:09:37,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 15:09:37,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 15:09:37,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 15:09:37,456 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 15:09:37,456 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 15:09:37,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursive/recHanoi01.c [2024-10-15 15:09:38,738 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 15:09:38,878 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 15:09:38,878 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive/recHanoi01.c [2024-10-15 15:09:38,885 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/1af7248c0/60b304314e6a4dfdbb8a67624306326e/FLAG5b1efeb21 [2024-10-15 15:09:38,899 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/1af7248c0/60b304314e6a4dfdbb8a67624306326e [2024-10-15 15:09:38,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 15:09:38,904 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-15 15:09:38,904 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 15:09:38,906 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 15:09:38,910 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 15:09:38,910 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:09:38" (1/1) ... [2024-10-15 15:09:38,911 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@266d837a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:38, skipping insertion in model container [2024-10-15 15:09:38,911 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:09:38" (1/1) ... [2024-10-15 15:09:38,927 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 15:09:39,071 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive/recHanoi01.c[1213,1226] [2024-10-15 15:09:39,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:09:39,083 INFO L200 MainTranslator]: Completed pre-run [2024-10-15 15:09:39,094 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive/recHanoi01.c[1213,1226] [2024-10-15 15:09:39,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:09:39,108 INFO L204 MainTranslator]: Completed translation [2024-10-15 15:09:39,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:39 WrapperNode [2024-10-15 15:09:39,110 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 15:09:39,111 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 15:09:39,111 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 15:09:39,111 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 15:09:39,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:39" (1/1) ... [2024-10-15 15:09:39,122 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:39" (1/1) ... [2024-10-15 15:09:39,126 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-10-15 15:09:39,126 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 15:09:39,127 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 15:09:39,127 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 15:09:39,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 15:09:39,134 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:39" (1/1) ... [2024-10-15 15:09:39,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:39" (1/1) ... [2024-10-15 15:09:39,139 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:39" (1/1) ... [2024-10-15 15:09:39,169 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]. [2024-10-15 15:09:39,170 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:39" (1/1) ... [2024-10-15 15:09:39,170 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:39" (1/1) ... [2024-10-15 15:09:39,172 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:39" (1/1) ... [2024-10-15 15:09:39,176 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:39" (1/1) ... [2024-10-15 15:09:39,178 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:39" (1/1) ... [2024-10-15 15:09:39,178 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:39" (1/1) ... [2024-10-15 15:09:39,179 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 15:09:39,180 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 15:09:39,181 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 15:09:39,181 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 15:09:39,181 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:39" (1/1) ... [2024-10-15 15:09:39,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 15:09:39,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 15:09:39,209 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) [2024-10-15 15:09:39,225 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 [2024-10-15 15:09:39,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 15:09:39,260 INFO L130 BoogieDeclarations]: Found specification of procedure applyHanoi [2024-10-15 15:09:39,261 INFO L138 BoogieDeclarations]: Found implementation of procedure applyHanoi [2024-10-15 15:09:39,261 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2024-10-15 15:09:39,261 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2024-10-15 15:09:39,261 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-10-15 15:09:39,261 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-10-15 15:09:39,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-15 15:09:39,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-10-15 15:09:39,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-10-15 15:09:39,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 15:09:39,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 15:09:39,310 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 15:09:39,312 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 15:09:39,433 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-10-15 15:09:39,433 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 15:09:39,455 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 15:09:39,456 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-15 15:09:39,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:09:39 BoogieIcfgContainer [2024-10-15 15:09:39,456 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 15:09:39,458 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-15 15:09:39,459 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-15 15:09:39,461 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-15 15:09:39,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:09:38" (1/3) ... [2024-10-15 15:09:39,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f426f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:09:39, skipping insertion in model container [2024-10-15 15:09:39,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:39" (2/3) ... [2024-10-15 15:09:39,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f426f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:09:39, skipping insertion in model container [2024-10-15 15:09:39,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:09:39" (3/3) ... [2024-10-15 15:09:39,465 INFO L112 eAbstractionObserver]: Analyzing ICFG recHanoi01.c [2024-10-15 15:09:39,478 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-15 15:09:39,478 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-15 15:09:39,524 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-15 15:09:39,531 INFO L333 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;@2a86dd9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-15 15:09:39,531 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-15 15:09:39,534 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 17 states have internal predecessors, (20), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-15 15:09:39,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-15 15:09:39,544 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 15:09:39,545 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 15:09:39,545 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 15:09:39,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:09:39,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1116782284, now seen corresponding path program 1 times [2024-10-15 15:09:39,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 15:09:39,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245313122] [2024-10-15 15:09:39,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 15:09:39,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 15:09:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:39,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 15:09:39,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:39,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-15 15:09:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:39,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-15 15:09:39,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:39,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 15:09:39,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 15:09:39,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245313122] [2024-10-15 15:09:39,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245313122] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 15:09:39,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 15:09:39,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-15 15:09:39,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856903721] [2024-10-15 15:09:39,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 15:09:39,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-15 15:09:39,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 15:09:39,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-15 15:09:39,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-15 15:09:39,974 INFO L87 Difference]: Start difference. First operand has 28 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 17 states have internal predecessors, (20), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-15 15:09:40,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 15:09:40,152 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2024-10-15 15:09:40,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-15 15:09:40,154 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 19 [2024-10-15 15:09:40,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 15:09:40,160 INFO L225 Difference]: With dead ends: 47 [2024-10-15 15:09:40,160 INFO L226 Difference]: Without dead ends: 26 [2024-10-15 15:09:40,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-15 15:09:40,165 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 19 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-15 15:09:40,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 76 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-15 15:09:40,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-10-15 15:09:40,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-10-15 15:09:40,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-10-15 15:09:40,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2024-10-15 15:09:40,201 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 19 [2024-10-15 15:09:40,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 15:09:40,202 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2024-10-15 15:09:40,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-15 15:09:40,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:09:40,203 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2024-10-15 15:09:40,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-15 15:09:40,204 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 15:09:40,205 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 15:09:40,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-15 15:09:40,205 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 15:09:40,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:09:40,206 INFO L85 PathProgramCache]: Analyzing trace with hash -715877671, now seen corresponding path program 1 times [2024-10-15 15:09:40,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 15:09:40,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888054986] [2024-10-15 15:09:40,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 15:09:40,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 15:09:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:40,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 15:09:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:40,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-15 15:09:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:40,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:40,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:40,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-15 15:09:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:40,591 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-15 15:09:40,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 15:09:40,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888054986] [2024-10-15 15:09:40,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888054986] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 15:09:40,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509457379] [2024-10-15 15:09:40,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 15:09:40,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:09:40,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 15:09:40,594 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) [2024-10-15 15:09:40,595 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-15 15:09:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:40,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-15 15:09:40,677 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 15:09:40,807 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-15 15:09:40,808 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 15:09:40,951 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-15 15:09:40,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509457379] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 15:09:40,951 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 15:09:40,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 17 [2024-10-15 15:09:40,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119057504] [2024-10-15 15:09:40,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 15:09:40,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-15 15:09:40,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 15:09:40,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-15 15:09:40,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-10-15 15:09:40,954 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 17 states, 16 states have (on average 1.875) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (13), 5 states have call predecessors, (13), 8 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-10-15 15:09:41,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 15:09:41,251 INFO L93 Difference]: Finished difference Result 77 states and 107 transitions. [2024-10-15 15:09:41,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-15 15:09:41,252 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.875) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (13), 5 states have call predecessors, (13), 8 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 29 [2024-10-15 15:09:41,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 15:09:41,254 INFO L225 Difference]: With dead ends: 77 [2024-10-15 15:09:41,254 INFO L226 Difference]: Without dead ends: 71 [2024-10-15 15:09:41,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=608, Unknown=0, NotChecked=0, Total=756 [2024-10-15 15:09:41,255 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 57 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-15 15:09:41,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 123 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-15 15:09:41,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-10-15 15:09:41,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 60. [2024-10-15 15:09:41,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 34 states have internal predecessors, (36), 16 states have call successors, (16), 8 states have call predecessors, (16), 12 states have return successors, (34), 17 states have call predecessors, (34), 15 states have call successors, (34) [2024-10-15 15:09:41,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 86 transitions. [2024-10-15 15:09:41,275 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 86 transitions. Word has length 29 [2024-10-15 15:09:41,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 15:09:41,276 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 86 transitions. [2024-10-15 15:09:41,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.875) internal successors, (30), 15 states have internal predecessors, (30), 5 states have call successors, (13), 5 states have call predecessors, (13), 8 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-10-15 15:09:41,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:09:41,276 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 86 transitions. [2024-10-15 15:09:41,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-15 15:09:41,278 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 15:09:41,278 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 15:09:41,290 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-15 15:09:41,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:09:41,479 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 15:09:41,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:09:41,479 INFO L85 PathProgramCache]: Analyzing trace with hash 334206910, now seen corresponding path program 2 times [2024-10-15 15:09:41,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 15:09:41,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798125450] [2024-10-15 15:09:41,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 15:09:41,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 15:09:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:41,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 15:09:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:41,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-15 15:09:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:41,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:41,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:41,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:41,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:41,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-15 15:09:41,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:41,634 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-15 15:09:41,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 15:09:41,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798125450] [2024-10-15 15:09:41,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798125450] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 15:09:41,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351873239] [2024-10-15 15:09:41,635 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-15 15:09:41,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:09:41,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 15:09:41,638 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) [2024-10-15 15:09:41,639 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-15 15:09:41,684 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-15 15:09:41,684 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 15:09:41,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-15 15:09:41,687 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 15:09:41,770 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-15 15:09:41,770 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 15:09:42,063 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-15 15:09:42,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351873239] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 15:09:42,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 15:09:42,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 11] total 18 [2024-10-15 15:09:42,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397955462] [2024-10-15 15:09:42,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 15:09:42,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-15 15:09:42,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 15:09:42,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-15 15:09:42,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-10-15 15:09:42,065 INFO L87 Difference]: Start difference. First operand 60 states and 86 transitions. Second operand has 18 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 9 states have call successors, (17), 2 states have call predecessors, (17), 7 states have return successors, (15), 8 states have call predecessors, (15), 9 states have call successors, (15) [2024-10-15 15:09:42,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 15:09:42,357 INFO L93 Difference]: Finished difference Result 111 states and 172 transitions. [2024-10-15 15:09:42,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-15 15:09:42,358 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 9 states have call successors, (17), 2 states have call predecessors, (17), 7 states have return successors, (15), 8 states have call predecessors, (15), 9 states have call successors, (15) Word has length 39 [2024-10-15 15:09:42,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 15:09:42,359 INFO L225 Difference]: With dead ends: 111 [2024-10-15 15:09:42,359 INFO L226 Difference]: Without dead ends: 77 [2024-10-15 15:09:42,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 80 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=175, Invalid=695, Unknown=0, NotChecked=0, Total=870 [2024-10-15 15:09:42,361 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 32 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-15 15:09:42,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 148 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-15 15:09:42,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-10-15 15:09:42,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 58. [2024-10-15 15:09:42,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 33 states have internal predecessors, (38), 13 states have call successors, (13), 11 states have call predecessors, (13), 10 states have return successors, (21), 13 states have call predecessors, (21), 12 states have call successors, (21) [2024-10-15 15:09:42,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 72 transitions. [2024-10-15 15:09:42,380 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 72 transitions. Word has length 39 [2024-10-15 15:09:42,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 15:09:42,381 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 72 transitions. [2024-10-15 15:09:42,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 9 states have call successors, (17), 2 states have call predecessors, (17), 7 states have return successors, (15), 8 states have call predecessors, (15), 9 states have call successors, (15) [2024-10-15 15:09:42,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:09:42,381 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2024-10-15 15:09:42,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-15 15:09:42,382 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 15:09:42,382 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 15:09:42,400 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-15 15:09:42,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:09:42,587 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 15:09:42,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:09:42,588 INFO L85 PathProgramCache]: Analyzing trace with hash 2051145677, now seen corresponding path program 1 times [2024-10-15 15:09:42,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 15:09:42,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695916842] [2024-10-15 15:09:42,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 15:09:42,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 15:09:42,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:42,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 15:09:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:42,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-15 15:09:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:42,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:42,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:42,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:42,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-15 15:09:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:42,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:42,742 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-15 15:09:42,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 15:09:42,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695916842] [2024-10-15 15:09:42,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695916842] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 15:09:42,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480400668] [2024-10-15 15:09:42,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 15:09:42,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:09:42,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 15:09:42,746 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) [2024-10-15 15:09:42,748 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-15 15:09:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:42,784 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-15 15:09:42,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 15:09:42,839 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-15 15:09:42,839 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 15:09:43,036 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-15 15:09:43,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480400668] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 15:09:43,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 15:09:43,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 11] total 20 [2024-10-15 15:09:43,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385242795] [2024-10-15 15:09:43,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 15:09:43,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-15 15:09:43,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 15:09:43,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-15 15:09:43,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2024-10-15 15:09:43,038 INFO L87 Difference]: Start difference. First operand 58 states and 72 transitions. Second operand has 20 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 9 states have call successors, (14), 2 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 9 states have call successors, (10) [2024-10-15 15:09:43,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 15:09:43,220 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2024-10-15 15:09:43,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-15 15:09:43,220 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 9 states have call successors, (14), 2 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 9 states have call successors, (10) Word has length 35 [2024-10-15 15:09:43,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 15:09:43,221 INFO L225 Difference]: With dead ends: 65 [2024-10-15 15:09:43,221 INFO L226 Difference]: Without dead ends: 53 [2024-10-15 15:09:43,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 66 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=140, Invalid=616, Unknown=0, NotChecked=0, Total=756 [2024-10-15 15:09:43,223 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 17 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-15 15:09:43,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 124 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-15 15:09:43,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-10-15 15:09:43,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2024-10-15 15:09:43,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 30 states have (on average 1.1) internal successors, (33), 29 states have internal predecessors, (33), 12 states have call successors, (12), 10 states have call predecessors, (12), 8 states have return successors, (18), 11 states have call predecessors, (18), 11 states have call successors, (18) [2024-10-15 15:09:43,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 63 transitions. [2024-10-15 15:09:43,235 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 63 transitions. Word has length 35 [2024-10-15 15:09:43,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 15:09:43,236 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 63 transitions. [2024-10-15 15:09:43,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 9 states have call successors, (14), 2 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 9 states have call successors, (10) [2024-10-15 15:09:43,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:09:43,236 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2024-10-15 15:09:43,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-15 15:09:43,237 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 15:09:43,237 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 15:09:43,249 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-15 15:09:43,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:09:43,442 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 15:09:43,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:09:43,443 INFO L85 PathProgramCache]: Analyzing trace with hash 2007684205, now seen corresponding path program 2 times [2024-10-15 15:09:43,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 15:09:43,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667750307] [2024-10-15 15:09:43,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 15:09:43,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 15:09:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:43,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 15:09:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:43,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-15 15:09:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:43,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:43,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:43,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:43,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:09:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:43,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:43,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:43,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-15 15:09:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:43,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:43,942 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 9 proven. 34 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-10-15 15:09:43,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 15:09:43,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667750307] [2024-10-15 15:09:43,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667750307] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 15:09:43,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384132805] [2024-10-15 15:09:43,943 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-15 15:09:43,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:09:43,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 15:09:43,947 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) [2024-10-15 15:09:43,954 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-15 15:09:44,005 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-15 15:09:44,006 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 15:09:44,007 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-10-15 15:09:44,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 15:09:44,141 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-15 15:09:44,142 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 15:09:44,545 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-15 15:09:44,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384132805] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 15:09:44,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 15:09:44,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 18] total 34 [2024-10-15 15:09:44,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95630734] [2024-10-15 15:09:44,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 15:09:44,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-15 15:09:44,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 15:09:44,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-15 15:09:44,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122 [2024-10-15 15:09:44,547 INFO L87 Difference]: Start difference. First operand 51 states and 63 transitions. Second operand has 34 states, 30 states have (on average 1.6666666666666667) internal successors, (50), 27 states have internal predecessors, (50), 9 states have call successors, (20), 7 states have call predecessors, (20), 17 states have return successors, (23), 16 states have call predecessors, (23), 9 states have call successors, (23) [2024-10-15 15:09:45,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 15:09:45,417 INFO L93 Difference]: Finished difference Result 104 states and 142 transitions. [2024-10-15 15:09:45,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-15 15:09:45,417 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 30 states have (on average 1.6666666666666667) internal successors, (50), 27 states have internal predecessors, (50), 9 states have call successors, (20), 7 states have call predecessors, (20), 17 states have return successors, (23), 16 states have call predecessors, (23), 9 states have call successors, (23) Word has length 55 [2024-10-15 15:09:45,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 15:09:45,419 INFO L225 Difference]: With dead ends: 104 [2024-10-15 15:09:45,419 INFO L226 Difference]: Without dead ends: 100 [2024-10-15 15:09:45,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 850 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=532, Invalid=3250, Unknown=0, NotChecked=0, Total=3782 [2024-10-15 15:09:45,420 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 182 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-15 15:09:45,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 194 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-15 15:09:45,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-10-15 15:09:45,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 83. [2024-10-15 15:09:45,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 45 states have (on average 1.0888888888888888) internal successors, (49), 45 states have internal predecessors, (49), 20 states have call successors, (20), 12 states have call predecessors, (20), 17 states have return successors, (45), 25 states have call predecessors, (45), 19 states have call successors, (45) [2024-10-15 15:09:45,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 114 transitions. [2024-10-15 15:09:45,435 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 114 transitions. Word has length 55 [2024-10-15 15:09:45,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 15:09:45,435 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 114 transitions. [2024-10-15 15:09:45,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 30 states have (on average 1.6666666666666667) internal successors, (50), 27 states have internal predecessors, (50), 9 states have call successors, (20), 7 states have call predecessors, (20), 17 states have return successors, (23), 16 states have call predecessors, (23), 9 states have call successors, (23) [2024-10-15 15:09:45,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:09:45,435 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 114 transitions. [2024-10-15 15:09:45,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-15 15:09:45,437 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 15:09:45,437 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 15:09:45,452 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-15 15:09:45,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:09:45,641 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 15:09:45,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:09:45,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1984388281, now seen corresponding path program 3 times [2024-10-15 15:09:45,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 15:09:45,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813230871] [2024-10-15 15:09:45,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 15:09:45,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 15:09:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:45,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 15:09:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:45,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-15 15:09:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:45,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:45,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:45,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:45,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:09:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:45,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:45,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:45,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-15 15:09:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:45,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:45,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:45,833 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 13 proven. 45 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-15 15:09:45,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 15:09:45,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813230871] [2024-10-15 15:09:45,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813230871] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 15:09:45,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480890422] [2024-10-15 15:09:45,834 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-15 15:09:45,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:09:45,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 15:09:45,835 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) [2024-10-15 15:09:45,836 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-15 15:09:45,881 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-10-15 15:09:45,882 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 15:09:45,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-15 15:09:45,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 15:09:45,954 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 41 proven. 12 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-10-15 15:09:45,954 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 15:09:46,401 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 41 proven. 21 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-10-15 15:09:46,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480890422] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 15:09:46,402 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 15:09:46,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 15] total 24 [2024-10-15 15:09:46,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821753376] [2024-10-15 15:09:46,402 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 15:09:46,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-15 15:09:46,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 15:09:46,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-15 15:09:46,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2024-10-15 15:09:46,407 INFO L87 Difference]: Start difference. First operand 83 states and 114 transitions. Second operand has 24 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 22 states have internal predecessors, (48), 12 states have call successors, (23), 2 states have call predecessors, (23), 9 states have return successors, (22), 10 states have call predecessors, (22), 12 states have call successors, (22) [2024-10-15 15:09:46,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 15:09:46,746 INFO L93 Difference]: Finished difference Result 145 states and 223 transitions. [2024-10-15 15:09:46,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-15 15:09:46,747 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 22 states have internal predecessors, (48), 12 states have call successors, (23), 2 states have call predecessors, (23), 9 states have return successors, (22), 10 states have call predecessors, (22), 12 states have call successors, (22) Word has length 61 [2024-10-15 15:09:46,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 15:09:46,748 INFO L225 Difference]: With dead ends: 145 [2024-10-15 15:09:46,748 INFO L226 Difference]: Without dead ends: 79 [2024-10-15 15:09:46,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 123 SyntacticMatches, 7 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=241, Invalid=1091, Unknown=0, NotChecked=0, Total=1332 [2024-10-15 15:09:46,750 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 29 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-15 15:09:46,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 162 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-15 15:09:46,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-10-15 15:09:46,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 69. [2024-10-15 15:09:46,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 19 states have call successors, (19), 10 states have call predecessors, (19), 13 states have return successors, (36), 22 states have call predecessors, (36), 18 states have call successors, (36) [2024-10-15 15:09:46,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 93 transitions. [2024-10-15 15:09:46,762 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 93 transitions. Word has length 61 [2024-10-15 15:09:46,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 15:09:46,762 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 93 transitions. [2024-10-15 15:09:46,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 22 states have internal predecessors, (48), 12 states have call successors, (23), 2 states have call predecessors, (23), 9 states have return successors, (22), 10 states have call predecessors, (22), 12 states have call successors, (22) [2024-10-15 15:09:46,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:09:46,763 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 93 transitions. [2024-10-15 15:09:46,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-15 15:09:46,764 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 15:09:46,764 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 6, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 15:09:46,778 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-15 15:09:46,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-15 15:09:46,969 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 15:09:46,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:09:46,969 INFO L85 PathProgramCache]: Analyzing trace with hash 617404749, now seen corresponding path program 4 times [2024-10-15 15:09:46,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 15:09:46,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733199817] [2024-10-15 15:09:46,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 15:09:46,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 15:09:46,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:47,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 15:09:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:47,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-15 15:09:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:47,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:47,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:47,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:47,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:47,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:47,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:09:47,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:47,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:47,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:47,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:47,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:09:47,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:47,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:47,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:47,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-15 15:09:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:47,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:47,242 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 71 proven. 69 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-10-15 15:09:47,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 15:09:47,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733199817] [2024-10-15 15:09:47,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733199817] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 15:09:47,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029386537] [2024-10-15 15:09:47,242 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-15 15:09:47,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:09:47,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 15:09:47,244 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) [2024-10-15 15:09:47,244 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-15 15:09:47,303 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-15 15:09:47,304 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 15:09:47,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-15 15:09:47,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 15:09:47,360 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 74 proven. 70 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-10-15 15:09:47,360 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 15:09:47,772 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 74 proven. 75 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-10-15 15:09:47,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029386537] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 15:09:47,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 15:09:47,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 13] total 19 [2024-10-15 15:09:47,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701447737] [2024-10-15 15:09:47,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 15:09:47,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-15 15:09:47,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 15:09:47,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-15 15:09:47,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-10-15 15:09:47,774 INFO L87 Difference]: Start difference. First operand 69 states and 93 transitions. Second operand has 19 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 17 states have internal predecessors, (49), 12 states have call successors, (27), 3 states have call predecessors, (27), 8 states have return successors, (22), 6 states have call predecessors, (22), 12 states have call successors, (22) [2024-10-15 15:09:47,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 15:09:47,966 INFO L93 Difference]: Finished difference Result 122 states and 179 transitions. [2024-10-15 15:09:47,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-15 15:09:47,966 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 17 states have internal predecessors, (49), 12 states have call successors, (27), 3 states have call predecessors, (27), 8 states have return successors, (22), 6 states have call predecessors, (22), 12 states have call successors, (22) Word has length 75 [2024-10-15 15:09:47,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 15:09:47,967 INFO L225 Difference]: With dead ends: 122 [2024-10-15 15:09:47,967 INFO L226 Difference]: Without dead ends: 76 [2024-10-15 15:09:47,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 163 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=258, Invalid=734, Unknown=0, NotChecked=0, Total=992 [2024-10-15 15:09:47,969 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 28 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-15 15:09:47,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 95 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-15 15:09:47,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-10-15 15:09:47,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 66. [2024-10-15 15:09:47,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 35 states have internal predecessors, (37), 19 states have call successors, (19), 11 states have call predecessors, (19), 11 states have return successors, (32), 19 states have call predecessors, (32), 18 states have call successors, (32) [2024-10-15 15:09:47,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 88 transitions. [2024-10-15 15:09:47,978 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 88 transitions. Word has length 75 [2024-10-15 15:09:47,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 15:09:47,979 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 88 transitions. [2024-10-15 15:09:47,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 17 states have internal predecessors, (49), 12 states have call successors, (27), 3 states have call predecessors, (27), 8 states have return successors, (22), 6 states have call predecessors, (22), 12 states have call successors, (22) [2024-10-15 15:09:47,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:09:47,979 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 88 transitions. [2024-10-15 15:09:47,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-15 15:09:47,980 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 15:09:47,980 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 8, 7, 7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 15:09:47,996 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-15 15:09:48,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:09:48,180 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 15:09:48,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:09:48,181 INFO L85 PathProgramCache]: Analyzing trace with hash 747420525, now seen corresponding path program 5 times [2024-10-15 15:09:48,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 15:09:48,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517104330] [2024-10-15 15:09:48,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 15:09:48,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 15:09:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:48,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 15:09:48,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:48,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-15 15:09:48,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:48,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:48,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:48,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:48,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:48,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:48,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:48,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:09:48,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:48,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:48,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:48,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:09:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:48,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:48,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:48,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:48,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:48,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:48,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:09:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:48,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:48,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:48,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-15 15:09:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:48,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:48,489 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 42 proven. 135 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2024-10-15 15:09:48,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 15:09:48,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517104330] [2024-10-15 15:09:48,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517104330] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 15:09:48,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777444855] [2024-10-15 15:09:48,489 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-15 15:09:48,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:09:48,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 15:09:48,491 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) [2024-10-15 15:09:48,494 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-15 15:09:48,575 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2024-10-15 15:09:48,575 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 15:09:48,576 INFO L255 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-15 15:09:48,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 15:09:48,641 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 123 proven. 50 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2024-10-15 15:09:48,641 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 15:09:49,145 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 123 proven. 60 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2024-10-15 15:09:49,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777444855] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 15:09:49,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 15:09:49,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 15] total 24 [2024-10-15 15:09:49,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769263854] [2024-10-15 15:09:49,146 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 15:09:49,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-15 15:09:49,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 15:09:49,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-15 15:09:49,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=460, Unknown=0, NotChecked=0, Total=552 [2024-10-15 15:09:49,147 INFO L87 Difference]: Start difference. First operand 66 states and 88 transitions. Second operand has 24 states, 23 states have (on average 2.0434782608695654) internal successors, (47), 22 states have internal predecessors, (47), 13 states have call successors, (25), 2 states have call predecessors, (25), 9 states have return successors, (22), 9 states have call predecessors, (22), 13 states have call successors, (22) [2024-10-15 15:09:49,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 15:09:49,463 INFO L93 Difference]: Finished difference Result 78 states and 105 transitions. [2024-10-15 15:09:49,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-15 15:09:49,463 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.0434782608695654) internal successors, (47), 22 states have internal predecessors, (47), 13 states have call successors, (25), 2 states have call predecessors, (25), 9 states have return successors, (22), 9 states have call predecessors, (22), 13 states have call successors, (22) Word has length 95 [2024-10-15 15:09:49,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 15:09:49,465 INFO L225 Difference]: With dead ends: 78 [2024-10-15 15:09:49,465 INFO L226 Difference]: Without dead ends: 74 [2024-10-15 15:09:49,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 205 SyntacticMatches, 7 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=251, Invalid=1155, Unknown=0, NotChecked=0, Total=1406 [2024-10-15 15:09:49,466 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 34 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-15 15:09:49,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 184 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-15 15:09:49,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-10-15 15:09:49,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 69. [2024-10-15 15:09:49,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 37 states have (on average 1.054054054054054) internal successors, (39), 37 states have internal predecessors, (39), 19 states have call successors, (19), 11 states have call predecessors, (19), 12 states have return successors, (33), 20 states have call predecessors, (33), 18 states have call successors, (33) [2024-10-15 15:09:49,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 91 transitions. [2024-10-15 15:09:49,486 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 91 transitions. Word has length 95 [2024-10-15 15:09:49,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 15:09:49,487 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 91 transitions. [2024-10-15 15:09:49,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.0434782608695654) internal successors, (47), 22 states have internal predecessors, (47), 13 states have call successors, (25), 2 states have call predecessors, (25), 9 states have return successors, (22), 9 states have call predecessors, (22), 13 states have call successors, (22) [2024-10-15 15:09:49,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:09:49,488 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 91 transitions. [2024-10-15 15:09:49,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-15 15:09:49,488 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 15:09:49,488 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 8, 7, 7, 7, 7, 7, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 15:09:49,501 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-15 15:09:49,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:09:49,691 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 15:09:49,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:09:49,691 INFO L85 PathProgramCache]: Analyzing trace with hash -35650631, now seen corresponding path program 6 times [2024-10-15 15:09:49,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 15:09:49,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156073050] [2024-10-15 15:09:49,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 15:09:49,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 15:09:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:50,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 15:09:50,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:50,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-15 15:09:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:50,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:50,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:50,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:50,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:50,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:50,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:09:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:50,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:50,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:50,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:09:50,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:50,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:50,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:50,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:50,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:09:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:50,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:50,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:50,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-15 15:09:50,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:50,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:50,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:50,598 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 22 proven. 163 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-10-15 15:09:50,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 15:09:50,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156073050] [2024-10-15 15:09:50,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156073050] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 15:09:50,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947173567] [2024-10-15 15:09:50,598 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-15 15:09:50,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:09:50,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 15:09:50,600 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) [2024-10-15 15:09:50,602 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-15 15:09:50,691 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2024-10-15 15:09:50,691 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 15:09:50,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 91 conjuncts are in the unsatisfiable core [2024-10-15 15:09:50,695 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 15:09:51,002 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2024-10-15 15:09:51,002 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 15:09:52,401 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 441 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-10-15 15:09:52,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947173567] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 15:09:52,401 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 15:09:52,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 32] total 54 [2024-10-15 15:09:52,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639656191] [2024-10-15 15:09:52,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 15:09:52,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-10-15 15:09:52,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 15:09:52,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-10-15 15:09:52,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=2660, Unknown=0, NotChecked=0, Total=2862 [2024-10-15 15:09:52,404 INFO L87 Difference]: Start difference. First operand 69 states and 91 transitions. Second operand has 54 states, 45 states have (on average 1.6222222222222222) internal successors, (73), 41 states have internal predecessors, (73), 16 states have call successors, (29), 11 states have call predecessors, (29), 27 states have return successors, (36), 27 states have call predecessors, (36), 16 states have call successors, (36) [2024-10-15 15:09:55,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 15:09:55,718 INFO L93 Difference]: Finished difference Result 225 states and 326 transitions. [2024-10-15 15:09:55,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2024-10-15 15:09:55,719 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 45 states have (on average 1.6222222222222222) internal successors, (73), 41 states have internal predecessors, (73), 16 states have call successors, (29), 11 states have call predecessors, (29), 27 states have return successors, (36), 27 states have call predecessors, (36), 16 states have call successors, (36) Word has length 101 [2024-10-15 15:09:55,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 15:09:55,721 INFO L225 Difference]: With dead ends: 225 [2024-10-15 15:09:55,721 INFO L226 Difference]: Without dead ends: 221 [2024-10-15 15:09:55,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3743 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1935, Invalid=12827, Unknown=0, NotChecked=0, Total=14762 [2024-10-15 15:09:55,724 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 394 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 1564 mSolverCounterSat, 801 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 2365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 801 IncrementalHoareTripleChecker+Valid, 1564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-15 15:09:55,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 497 Invalid, 2365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [801 Valid, 1564 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-15 15:09:55,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-10-15 15:09:55,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 182. [2024-10-15 15:09:55,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 98 states have (on average 1.0714285714285714) internal successors, (105), 97 states have internal predecessors, (105), 49 states have call successors, (49), 29 states have call predecessors, (49), 34 states have return successors, (105), 55 states have call predecessors, (105), 48 states have call successors, (105) [2024-10-15 15:09:55,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 259 transitions. [2024-10-15 15:09:55,758 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 259 transitions. Word has length 101 [2024-10-15 15:09:55,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 15:09:55,759 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 259 transitions. [2024-10-15 15:09:55,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 45 states have (on average 1.6222222222222222) internal successors, (73), 41 states have internal predecessors, (73), 16 states have call successors, (29), 11 states have call predecessors, (29), 27 states have return successors, (36), 27 states have call predecessors, (36), 16 states have call successors, (36) [2024-10-15 15:09:55,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:09:55,759 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 259 transitions. [2024-10-15 15:09:55,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-15 15:09:55,761 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 15:09:55,761 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 8, 7, 7, 7, 7, 7, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 15:09:55,773 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-15 15:09:55,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:09:55,962 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 15:09:55,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:09:55,962 INFO L85 PathProgramCache]: Analyzing trace with hash 796330413, now seen corresponding path program 7 times [2024-10-15 15:09:55,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 15:09:55,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533644757] [2024-10-15 15:09:55,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 15:09:55,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 15:09:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:56,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 15:09:56,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:56,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-15 15:09:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:56,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:56,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:56,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:56,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:56,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:56,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:09:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:56,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:56,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:56,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:09:56,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:56,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:56,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:56,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:56,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:56,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:56,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:09:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:56,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:56,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:56,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:56,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-15 15:09:56,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:56,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:56,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:56,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:56,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:56,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:56,437 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 42 proven. 150 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-10-15 15:09:56,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 15:09:56,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533644757] [2024-10-15 15:09:56,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533644757] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 15:09:56,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809804382] [2024-10-15 15:09:56,438 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-15 15:09:56,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:09:56,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 15:09:56,442 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) [2024-10-15 15:09:56,443 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-15 15:09:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:56,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-15 15:09:56,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 15:09:56,638 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 48 proven. 138 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2024-10-15 15:09:56,639 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 15:09:57,343 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 48 proven. 156 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-10-15 15:09:57,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809804382] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 15:09:57,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 15:09:57,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 19] total 28 [2024-10-15 15:09:57,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021024269] [2024-10-15 15:09:57,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 15:09:57,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-15 15:09:57,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 15:09:57,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-15 15:09:57,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=634, Unknown=0, NotChecked=0, Total=756 [2024-10-15 15:09:57,345 INFO L87 Difference]: Start difference. First operand 182 states and 259 transitions. Second operand has 28 states, 27 states have (on average 2.037037037037037) internal successors, (55), 26 states have internal predecessors, (55), 15 states have call successors, (26), 2 states have call predecessors, (26), 11 states have return successors, (26), 9 states have call predecessors, (26), 15 states have call successors, (26) [2024-10-15 15:09:57,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 15:09:57,698 INFO L93 Difference]: Finished difference Result 294 states and 473 transitions. [2024-10-15 15:09:57,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-15 15:09:57,699 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 2.037037037037037) internal successors, (55), 26 states have internal predecessors, (55), 15 states have call successors, (26), 2 states have call predecessors, (26), 11 states have return successors, (26), 9 states have call predecessors, (26), 15 states have call successors, (26) Word has length 107 [2024-10-15 15:09:57,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 15:09:57,700 INFO L225 Difference]: With dead ends: 294 [2024-10-15 15:09:57,701 INFO L226 Difference]: Without dead ends: 184 [2024-10-15 15:09:57,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 229 SyntacticMatches, 9 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=352, Invalid=1628, Unknown=0, NotChecked=0, Total=1980 [2024-10-15 15:09:57,702 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 37 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-15 15:09:57,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 220 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-15 15:09:57,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-10-15 15:09:57,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 160. [2024-10-15 15:09:57,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 82 states have (on average 1.0609756097560976) internal successors, (87), 82 states have internal predecessors, (87), 47 states have call successors, (47), 24 states have call predecessors, (47), 30 states have return successors, (89), 53 states have call predecessors, (89), 46 states have call successors, (89) [2024-10-15 15:09:57,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 223 transitions. [2024-10-15 15:09:57,742 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 223 transitions. Word has length 107 [2024-10-15 15:09:57,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 15:09:57,743 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 223 transitions. [2024-10-15 15:09:57,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 2.037037037037037) internal successors, (55), 26 states have internal predecessors, (55), 15 states have call successors, (26), 2 states have call predecessors, (26), 11 states have return successors, (26), 9 states have call predecessors, (26), 15 states have call successors, (26) [2024-10-15 15:09:57,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:09:57,743 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 223 transitions. [2024-10-15 15:09:57,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-10-15 15:09:57,744 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 15:09:57,745 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 16, 15, 15, 15, 15, 15, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 15:09:57,756 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-15 15:09:57,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-15 15:09:57,946 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 15:09:57,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:09:57,946 INFO L85 PathProgramCache]: Analyzing trace with hash 59611577, now seen corresponding path program 8 times [2024-10-15 15:09:57,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 15:09:57,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477454876] [2024-10-15 15:09:57,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 15:09:57,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 15:09:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 15:09:58,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-15 15:09:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:58,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:09:58,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:09:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:58,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:09:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:58,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-15 15:09:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:09:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:09:58,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:58,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:09:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:58,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:09:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-15 15:09:58,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:09:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:09:58,404 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 107 proven. 410 refuted. 0 times theorem prover too weak. 1567 trivial. 0 not checked. [2024-10-15 15:09:58,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 15:09:58,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477454876] [2024-10-15 15:09:58,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477454876] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 15:09:58,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667504273] [2024-10-15 15:09:58,405 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-15 15:09:58,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:09:58,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 15:09:58,410 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) [2024-10-15 15:09:58,411 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-15 15:09:58,552 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-15 15:09:58,552 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 15:09:58,554 INFO L255 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-15 15:09:58,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 15:09:58,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 115 proven. 396 refuted. 0 times theorem prover too weak. 1573 trivial. 0 not checked. [2024-10-15 15:09:58,638 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 15:09:59,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 115 proven. 416 refuted. 0 times theorem prover too weak. 1553 trivial. 0 not checked. [2024-10-15 15:09:59,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667504273] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 15:09:59,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 15:09:59,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 19] total 28 [2024-10-15 15:09:59,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088058978] [2024-10-15 15:09:59,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 15:09:59,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-15 15:09:59,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 15:09:59,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-15 15:09:59,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2024-10-15 15:09:59,598 INFO L87 Difference]: Start difference. First operand 160 states and 223 transitions. Second operand has 28 states, 27 states have (on average 2.0) internal successors, (54), 26 states have internal predecessors, (54), 16 states have call successors, (28), 2 states have call predecessors, (28), 11 states have return successors, (27), 9 states have call predecessors, (27), 16 states have call successors, (27) [2024-10-15 15:10:00,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 15:10:00,026 INFO L93 Difference]: Finished difference Result 243 states and 364 transitions. [2024-10-15 15:10:00,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-15 15:10:00,027 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 2.0) internal successors, (54), 26 states have internal predecessors, (54), 16 states have call successors, (28), 2 states have call predecessors, (28), 11 states have return successors, (27), 9 states have call predecessors, (27), 16 states have call successors, (27) Word has length 181 [2024-10-15 15:10:00,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 15:10:00,028 INFO L225 Difference]: With dead ends: 243 [2024-10-15 15:10:00,029 INFO L226 Difference]: Without dead ends: 173 [2024-10-15 15:10:00,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 407 SyntacticMatches, 9 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=362, Invalid=1708, Unknown=0, NotChecked=0, Total=2070 [2024-10-15 15:10:00,030 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 41 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-15 15:10:00,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 196 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-15 15:10:00,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-10-15 15:10:00,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 160. [2024-10-15 15:10:00,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 83 states have (on average 1.0602409638554218) internal successors, (88), 83 states have internal predecessors, (88), 47 states have call successors, (47), 25 states have call predecessors, (47), 29 states have return successors, (82), 51 states have call predecessors, (82), 46 states have call successors, (82) [2024-10-15 15:10:00,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 217 transitions. [2024-10-15 15:10:00,053 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 217 transitions. Word has length 181 [2024-10-15 15:10:00,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 15:10:00,053 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 217 transitions. [2024-10-15 15:10:00,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 2.0) internal successors, (54), 26 states have internal predecessors, (54), 16 states have call successors, (28), 2 states have call predecessors, (28), 11 states have return successors, (27), 9 states have call predecessors, (27), 16 states have call successors, (27) [2024-10-15 15:10:00,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:10:00,054 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 217 transitions. [2024-10-15 15:10:00,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-10-15 15:10:00,055 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 15:10:00,055 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 16, 15, 15, 15, 15, 15, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 15:10:00,069 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-15 15:10:00,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-15 15:10:00,256 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 15:10:00,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:10:00,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1713119149, now seen corresponding path program 9 times [2024-10-15 15:10:00,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 15:10:00,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919469412] [2024-10-15 15:10:00,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 15:10:00,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 15:10:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:00,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 15:10:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:00,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-15 15:10:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:01,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:10:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:01,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:01,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:01,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:01,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:01,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-15 15:10:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:10:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:01,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-15 15:10:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:02,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:02,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:02,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:02,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:02,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:02,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 47 proven. 707 refuted. 0 times theorem prover too weak. 1346 trivial. 0 not checked. [2024-10-15 15:10:02,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 15:10:02,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919469412] [2024-10-15 15:10:02,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919469412] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 15:10:02,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975944882] [2024-10-15 15:10:02,130 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-15 15:10:02,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:10:02,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 15:10:02,134 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) [2024-10-15 15:10:02,136 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-15 15:10:02,314 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2024-10-15 15:10:02,314 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 15:10:02,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 175 conjuncts are in the unsatisfiable core [2024-10-15 15:10:02,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 15:10:02,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 0 proven. 705 refuted. 0 times theorem prover too weak. 1395 trivial. 0 not checked. [2024-10-15 15:10:02,765 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 15:10:05,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 0 proven. 2025 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-10-15 15:10:05,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975944882] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 15:10:05,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 15:10:05,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 21, 58] total 86 [2024-10-15 15:10:05,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930655500] [2024-10-15 15:10:05,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 15:10:05,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2024-10-15 15:10:05,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 15:10:05,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2024-10-15 15:10:05,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=6990, Unknown=0, NotChecked=0, Total=7310 [2024-10-15 15:10:05,742 INFO L87 Difference]: Start difference. First operand 160 states and 217 transitions. Second operand has 86 states, 68 states have (on average 1.6470588235294117) internal successors, (112), 65 states have internal predecessors, (112), 29 states have call successors, (46), 19 states have call predecessors, (46), 43 states have return successors, (57), 44 states have call predecessors, (57), 29 states have call successors, (57) [2024-10-15 15:10:24,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 15:10:24,642 INFO L93 Difference]: Finished difference Result 527 states and 795 transitions. [2024-10-15 15:10:24,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2024-10-15 15:10:24,643 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 68 states have (on average 1.6470588235294117) internal successors, (112), 65 states have internal predecessors, (112), 29 states have call successors, (46), 19 states have call predecessors, (46), 43 states have return successors, (57), 44 states have call predecessors, (57), 29 states have call successors, (57) Word has length 187 [2024-10-15 15:10:24,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 15:10:24,646 INFO L225 Difference]: With dead ends: 527 [2024-10-15 15:10:24,646 INFO L226 Difference]: Without dead ends: 523 [2024-10-15 15:10:24,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 668 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 246 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17428 ImplicationChecksByTransitivity, 18.2s TimeCoverageRelationStatistics Valid=8192, Invalid=53064, Unknown=0, NotChecked=0, Total=61256 [2024-10-15 15:10:24,661 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 1719 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 3107 mSolverCounterSat, 3530 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1719 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 6637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3530 IncrementalHoareTripleChecker+Valid, 3107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-15 15:10:24,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1719 Valid, 873 Invalid, 6637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3530 Valid, 3107 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-15 15:10:24,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-10-15 15:10:24,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 440. [2024-10-15 15:10:24,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 236 states have (on average 1.0593220338983051) internal successors, (250), 232 states have internal predecessors, (250), 127 states have call successors, (127), 76 states have call predecessors, (127), 76 states have return successors, (257), 131 states have call predecessors, (257), 126 states have call successors, (257) [2024-10-15 15:10:24,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 634 transitions. [2024-10-15 15:10:24,737 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 634 transitions. Word has length 187 [2024-10-15 15:10:24,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 15:10:24,739 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 634 transitions. [2024-10-15 15:10:24,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 68 states have (on average 1.6470588235294117) internal successors, (112), 65 states have internal predecessors, (112), 29 states have call successors, (46), 19 states have call predecessors, (46), 43 states have return successors, (57), 44 states have call predecessors, (57), 29 states have call successors, (57) [2024-10-15 15:10:24,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:10:24,739 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 634 transitions. [2024-10-15 15:10:24,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-10-15 15:10:24,742 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 15:10:24,742 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 16, 15, 15, 15, 15, 15, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 15:10:24,757 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-15 15:10:24,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:10:24,946 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 15:10:24,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:10:24,947 INFO L85 PathProgramCache]: Analyzing trace with hash -629811463, now seen corresponding path program 10 times [2024-10-15 15:10:24,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 15:10:24,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536696630] [2024-10-15 15:10:24,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 15:10:24,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 15:10:24,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 15:10:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-15 15:10:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:25,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:25,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:25,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:10:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:25,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:25,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:25,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-15 15:10:25,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:25,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:25,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:10:25,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-15 15:10:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:25,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2122 backedges. 107 proven. 431 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked. [2024-10-15 15:10:25,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 15:10:25,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536696630] [2024-10-15 15:10:25,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536696630] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 15:10:25,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076100522] [2024-10-15 15:10:25,418 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-15 15:10:25,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:10:25,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 15:10:25,421 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) [2024-10-15 15:10:25,427 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-15 15:10:25,565 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-15 15:10:25,565 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 15:10:25,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 827 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-15 15:10:25,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 15:10:25,658 INFO L134 CoverageAnalysis]: Checked inductivity of 2122 backedges. 115 proven. 415 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2024-10-15 15:10:25,658 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 15:10:26,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2122 backedges. 115 proven. 447 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2024-10-15 15:10:26,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076100522] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 15:10:26,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 15:10:26,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 23] total 32 [2024-10-15 15:10:26,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517844040] [2024-10-15 15:10:26,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 15:10:26,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-15 15:10:26,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 15:10:26,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-15 15:10:26,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=837, Unknown=0, NotChecked=0, Total=992 [2024-10-15 15:10:26,923 INFO L87 Difference]: Start difference. First operand 440 states and 634 transitions. Second operand has 32 states, 31 states have (on average 2.0) internal successors, (62), 30 states have internal predecessors, (62), 18 states have call successors, (30), 2 states have call predecessors, (30), 13 states have return successors, (33), 11 states have call predecessors, (33), 18 states have call successors, (33) [2024-10-15 15:10:27,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 15:10:27,447 INFO L93 Difference]: Finished difference Result 686 states and 1091 transitions. [2024-10-15 15:10:27,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-15 15:10:27,447 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.0) internal successors, (62), 30 states have internal predecessors, (62), 18 states have call successors, (30), 2 states have call predecessors, (30), 13 states have return successors, (33), 11 states have call predecessors, (33), 18 states have call successors, (33) Word has length 193 [2024-10-15 15:10:27,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 15:10:27,451 INFO L225 Difference]: With dead ends: 686 [2024-10-15 15:10:27,451 INFO L226 Difference]: Without dead ends: 470 [2024-10-15 15:10:27,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 431 SyntacticMatches, 11 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 647 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=484, Invalid=2272, Unknown=0, NotChecked=0, Total=2756 [2024-10-15 15:10:27,453 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 38 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-15 15:10:27,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 175 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-15 15:10:27,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-10-15 15:10:27,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 397. [2024-10-15 15:10:27,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 201 states have (on average 1.0597014925373134) internal successors, (213), 201 states have internal predecessors, (213), 121 states have call successors, (121), 61 states have call predecessors, (121), 74 states have return successors, (220), 134 states have call predecessors, (220), 120 states have call successors, (220) [2024-10-15 15:10:27,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 554 transitions. [2024-10-15 15:10:27,515 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 554 transitions. Word has length 193 [2024-10-15 15:10:27,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 15:10:27,515 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 554 transitions. [2024-10-15 15:10:27,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.0) internal successors, (62), 30 states have internal predecessors, (62), 18 states have call successors, (30), 2 states have call predecessors, (30), 13 states have return successors, (33), 11 states have call predecessors, (33), 18 states have call successors, (33) [2024-10-15 15:10:27,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:10:27,515 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 554 transitions. [2024-10-15 15:10:27,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-10-15 15:10:27,518 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 15:10:27,518 INFO L215 NwaCegarLoop]: trace histogram [63, 63, 32, 31, 31, 31, 31, 31, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 15:10:27,531 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-15 15:10:27,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-15 15:10:27,719 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 15:10:27,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:10:27,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1937197997, now seen corresponding path program 11 times [2024-10-15 15:10:27,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 15:10:27,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28622828] [2024-10-15 15:10:27,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 15:10:27,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 15:10:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:27,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 15:10:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:27,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-15 15:10:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:28,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:10:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-15 15:10:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:10:28,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:28,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-15 15:10:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:10:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:28,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-15 15:10:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:10:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-10-15 15:10:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:28,705 INFO L134 CoverageAnalysis]: Checked inductivity of 8772 backedges. 244 proven. 1105 refuted. 0 times theorem prover too weak. 7423 trivial. 0 not checked. [2024-10-15 15:10:28,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 15:10:28,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28622828] [2024-10-15 15:10:28,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28622828] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 15:10:28,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856255632] [2024-10-15 15:10:28,705 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-15 15:10:28,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:10:28,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 15:10:28,707 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) [2024-10-15 15:10:28,711 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-15 15:10:29,034 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 56 check-sat command(s) [2024-10-15 15:10:29,034 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 15:10:29,040 INFO L255 TraceCheckSpWp]: Trace formula consists of 1644 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-15 15:10:29,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 15:10:29,133 INFO L134 CoverageAnalysis]: Checked inductivity of 8772 backedges. 839 proven. 501 refuted. 0 times theorem prover too weak. 7432 trivial. 0 not checked. [2024-10-15 15:10:29,133 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 15:10:30,921 INFO L134 CoverageAnalysis]: Checked inductivity of 8772 backedges. 842 proven. 533 refuted. 0 times theorem prover too weak. 7397 trivial. 0 not checked. [2024-10-15 15:10:30,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856255632] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 15:10:30,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 15:10:30,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 23] total 32 [2024-10-15 15:10:30,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017818256] [2024-10-15 15:10:30,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 15:10:30,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-15 15:10:30,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 15:10:30,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-15 15:10:30,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=838, Unknown=0, NotChecked=0, Total=992 [2024-10-15 15:10:30,923 INFO L87 Difference]: Start difference. First operand 397 states and 554 transitions. Second operand has 32 states, 31 states have (on average 1.967741935483871) internal successors, (61), 30 states have internal predecessors, (61), 19 states have call successors, (33), 2 states have call predecessors, (33), 13 states have return successors, (37), 14 states have call predecessors, (37), 19 states have call successors, (37) [2024-10-15 15:10:31,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 15:10:31,452 INFO L93 Difference]: Finished difference Result 532 states and 789 transitions. [2024-10-15 15:10:31,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-15 15:10:31,453 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.967741935483871) internal successors, (61), 30 states have internal predecessors, (61), 19 states have call successors, (33), 2 states have call predecessors, (33), 13 states have return successors, (37), 14 states have call predecessors, (37), 19 states have call successors, (37) Word has length 347 [2024-10-15 15:10:31,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 15:10:31,456 INFO L225 Difference]: With dead ends: 532 [2024-10-15 15:10:31,456 INFO L226 Difference]: Without dead ends: 426 [2024-10-15 15:10:31,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 864 GetRequests, 801 SyntacticMatches, 11 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=494, Invalid=2368, Unknown=0, NotChecked=0, Total=2862 [2024-10-15 15:10:31,457 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 58 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-15 15:10:31,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 225 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-15 15:10:31,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-10-15 15:10:31,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 397. [2024-10-15 15:10:31,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 202 states have (on average 1.0594059405940595) internal successors, (214), 202 states have internal predecessors, (214), 121 states have call successors, (121), 62 states have call predecessors, (121), 73 states have return successors, (205), 132 states have call predecessors, (205), 120 states have call successors, (205) [2024-10-15 15:10:31,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 540 transitions. [2024-10-15 15:10:31,520 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 540 transitions. Word has length 347 [2024-10-15 15:10:31,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 15:10:31,521 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 540 transitions. [2024-10-15 15:10:31,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.967741935483871) internal successors, (61), 30 states have internal predecessors, (61), 19 states have call successors, (33), 2 states have call predecessors, (33), 13 states have return successors, (37), 14 states have call predecessors, (37), 19 states have call successors, (37) [2024-10-15 15:10:31,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:10:31,521 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 540 transitions. [2024-10-15 15:10:31,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-10-15 15:10:31,525 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 15:10:31,525 INFO L215 NwaCegarLoop]: trace histogram [63, 63, 32, 31, 31, 31, 31, 31, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 15:10:31,539 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-15 15:10:31,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-15 15:10:31,725 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 15:10:31,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:10:31,726 INFO L85 PathProgramCache]: Analyzing trace with hash -910163207, now seen corresponding path program 12 times [2024-10-15 15:10:31,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 15:10:31,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484607894] [2024-10-15 15:10:31,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 15:10:31,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 15:10:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:33,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 15:10:33,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:33,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-15 15:10:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:34,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:35,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:35,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:35,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:10:35,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:35,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-15 15:10:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:35,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:10:35,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:35,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-15 15:10:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:10:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-15 15:10:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:36,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:36,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:10:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:10:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:10:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-10-15 15:10:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:36,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:10:36,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:10:36,987 INFO L134 CoverageAnalysis]: Checked inductivity of 8794 backedges. 96 proven. 2942 refuted. 0 times theorem prover too weak. 5756 trivial. 0 not checked. [2024-10-15 15:10:36,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 15:10:36,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484607894] [2024-10-15 15:10:36,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484607894] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 15:10:36,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998012049] [2024-10-15 15:10:36,990 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-15 15:10:36,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:10:36,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 15:10:36,991 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) [2024-10-15 15:10:37,034 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-15 15:10:37,383 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 56 check-sat command(s) [2024-10-15 15:10:37,383 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 15:10:37,393 INFO L255 TraceCheckSpWp]: Trace formula consists of 1658 conjuncts, 339 conjuncts are in the unsatisfiable core [2024-10-15 15:10:37,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 15:10:38,075 INFO L134 CoverageAnalysis]: Checked inductivity of 8794 backedges. 0 proven. 2940 refuted. 0 times theorem prover too weak. 5854 trivial. 0 not checked. [2024-10-15 15:10:38,075 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 15:10:45,381 INFO L134 CoverageAnalysis]: Checked inductivity of 8794 backedges. 0 proven. 8644 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-10-15 15:10:45,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998012049] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 15:10:45,381 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 15:10:45,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 25, 108] total 142 [2024-10-15 15:10:45,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537432729] [2024-10-15 15:10:45,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 15:10:45,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 142 states [2024-10-15 15:10:45,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 15:10:45,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2024-10-15 15:10:45,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=514, Invalid=19508, Unknown=0, NotChecked=0, Total=20022 [2024-10-15 15:10:45,388 INFO L87 Difference]: Start difference. First operand 397 states and 540 transitions. Second operand has 142 states, 107 states have (on average 1.7102803738317758) internal successors, (183), 109 states have internal predecessors, (183), 54 states have call successors, (79), 35 states have call predecessors, (79), 71 states have return successors, (94), 73 states have call predecessors, (94), 54 states have call successors, (94) [2024-10-15 15:12:47,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 15:12:47,613 INFO L93 Difference]: Finished difference Result 1260 states and 1961 transitions. [2024-10-15 15:12:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 396 states. [2024-10-15 15:12:47,614 INFO L78 Accepts]: Start accepts. Automaton has has 142 states, 107 states have (on average 1.7102803738317758) internal successors, (183), 109 states have internal predecessors, (183), 54 states have call successors, (79), 35 states have call predecessors, (79), 71 states have return successors, (94), 73 states have call predecessors, (94), 54 states have call successors, (94) Word has length 353 [2024-10-15 15:12:47,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 15:12:47,630 INFO L225 Difference]: With dead ends: 1260 [2024-10-15 15:12:47,630 INFO L226 Difference]: Without dead ends: 1256 [2024-10-15 15:12:47,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1336 GetRequests, 814 SyntacticMatches, 0 SemanticMatches, 522 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86864 ImplicationChecksByTransitivity, 117.5s TimeCoverageRelationStatistics Valid=37171, Invalid=236881, Unknown=0, NotChecked=0, Total=274052 [2024-10-15 15:12:47,663 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 6735 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 7663 mSolverCounterSat, 16326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6735 SdHoareTripleChecker+Valid, 2253 SdHoareTripleChecker+Invalid, 23989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16326 IncrementalHoareTripleChecker+Valid, 7663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-10-15 15:12:47,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6735 Valid, 2253 Invalid, 23989 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16326 Valid, 7663 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2024-10-15 15:12:47,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2024-10-15 15:12:48,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 1085. [2024-10-15 15:12:48,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1085 states, 581 states have (on average 1.0499139414802066) internal successors, (610), 570 states have internal predecessors, (610), 326 states have call successors, (326), 197 states have call predecessors, (326), 177 states have return successors, (645), 317 states have call predecessors, (645), 325 states have call successors, (645) [2024-10-15 15:12:48,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 1581 transitions. [2024-10-15 15:12:48,042 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 1581 transitions. Word has length 353 [2024-10-15 15:12:48,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 15:12:48,043 INFO L471 AbstractCegarLoop]: Abstraction has 1085 states and 1581 transitions. [2024-10-15 15:12:48,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 142 states, 107 states have (on average 1.7102803738317758) internal successors, (183), 109 states have internal predecessors, (183), 54 states have call successors, (79), 35 states have call predecessors, (79), 71 states have return successors, (94), 73 states have call predecessors, (94), 54 states have call successors, (94) [2024-10-15 15:12:48,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:12:48,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1581 transitions. [2024-10-15 15:12:48,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2024-10-15 15:12:48,049 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 15:12:48,049 INFO L215 NwaCegarLoop]: trace histogram [63, 63, 32, 31, 31, 31, 31, 31, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 15:12:48,065 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-15 15:12:48,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-15 15:12:48,254 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 15:12:48,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:12:48,254 INFO L85 PathProgramCache]: Analyzing trace with hash -870344211, now seen corresponding path program 13 times [2024-10-15 15:12:48,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 15:12:48,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910501891] [2024-10-15 15:12:48,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 15:12:48,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 15:12:48,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 15:12:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-15 15:12:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:12:48,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:12:48,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:12:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-15 15:12:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:12:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:12:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:12:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:48,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-15 15:12:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:12:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:12:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:12:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-15 15:12:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:12:48,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:12:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:12:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:48,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-10-15 15:12:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:49,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:49,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:49,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:49,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:49,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:49,095 INFO L134 CoverageAnalysis]: Checked inductivity of 8822 backedges. 244 proven. 1132 refuted. 0 times theorem prover too weak. 7446 trivial. 0 not checked. [2024-10-15 15:12:49,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 15:12:49,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910501891] [2024-10-15 15:12:49,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910501891] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 15:12:49,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303272562] [2024-10-15 15:12:49,096 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-15 15:12:49,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:12:49,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 15:12:49,098 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) [2024-10-15 15:12:49,098 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-15 15:12:49,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:49,359 INFO L255 TraceCheckSpWp]: Trace formula consists of 1672 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-15 15:12:49,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 15:12:49,459 INFO L134 CoverageAnalysis]: Checked inductivity of 8822 backedges. 254 proven. 1112 refuted. 0 times theorem prover too weak. 7456 trivial. 0 not checked. [2024-10-15 15:12:49,459 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 15:12:51,710 INFO L134 CoverageAnalysis]: Checked inductivity of 8822 backedges. 254 proven. 1162 refuted. 0 times theorem prover too weak. 7406 trivial. 0 not checked. [2024-10-15 15:12:51,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303272562] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 15:12:51,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 15:12:51,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17, 27] total 36 [2024-10-15 15:12:51,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723604555] [2024-10-15 15:12:51,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 15:12:51,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-10-15 15:12:51,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 15:12:51,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-10-15 15:12:51,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1068, Unknown=0, NotChecked=0, Total=1260 [2024-10-15 15:12:51,713 INFO L87 Difference]: Start difference. First operand 1085 states and 1581 transitions. Second operand has 36 states, 35 states have (on average 1.9714285714285715) internal successors, (69), 34 states have internal predecessors, (69), 21 states have call successors, (34), 2 states have call predecessors, (34), 15 states have return successors, (40), 13 states have call predecessors, (40), 21 states have call successors, (40) [2024-10-15 15:12:52,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 15:12:52,604 INFO L93 Difference]: Finished difference Result 1655 states and 2599 transitions. [2024-10-15 15:12:52,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-15 15:12:52,605 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 1.9714285714285715) internal successors, (69), 34 states have internal predecessors, (69), 21 states have call successors, (34), 2 states have call predecessors, (34), 15 states have return successors, (40), 13 states have call predecessors, (40), 21 states have call successors, (40) Word has length 359 [2024-10-15 15:12:52,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 15:12:52,613 INFO L225 Difference]: With dead ends: 1655 [2024-10-15 15:12:52,614 INFO L226 Difference]: Without dead ends: 1183 [2024-10-15 15:12:52,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 897 GetRequests, 825 SyntacticMatches, 13 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 899 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=637, Invalid=3023, Unknown=0, NotChecked=0, Total=3660 [2024-10-15 15:12:52,618 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 64 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-15 15:12:52,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 265 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-15 15:12:52,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2024-10-15 15:12:52,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 980. [2024-10-15 15:12:52,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 493 states have (on average 1.054766734279919) internal successors, (520), 493 states have internal predecessors, (520), 305 states have call successors, (305), 153 states have call predecessors, (305), 181 states have return successors, (533), 333 states have call predecessors, (533), 304 states have call successors, (533) [2024-10-15 15:12:52,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1358 transitions. [2024-10-15 15:12:52,859 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1358 transitions. Word has length 359 [2024-10-15 15:12:52,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 15:12:52,860 INFO L471 AbstractCegarLoop]: Abstraction has 980 states and 1358 transitions. [2024-10-15 15:12:52,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 1.9714285714285715) internal successors, (69), 34 states have internal predecessors, (69), 21 states have call successors, (34), 2 states have call predecessors, (34), 15 states have return successors, (40), 13 states have call predecessors, (40), 21 states have call successors, (40) [2024-10-15 15:12:52,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:12:52,860 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1358 transitions. [2024-10-15 15:12:52,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2024-10-15 15:12:52,865 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 15:12:52,866 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 48, 47, 47, 47, 47, 47, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 15:12:52,897 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-10-15 15:12:53,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-15 15:12:53,070 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 15:12:53,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:12:53,070 INFO L85 PathProgramCache]: Analyzing trace with hash -2092596487, now seen corresponding path program 14 times [2024-10-15 15:12:53,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 15:12:53,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660073891] [2024-10-15 15:12:53,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 15:12:53,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 15:12:53,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:53,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 15:12:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:53,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-15 15:12:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:53,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:53,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:53,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:53,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:53,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:12:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:12:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:12:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-15 15:12:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:12:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:12:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:12:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-15 15:12:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:12:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:12:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:12:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-15 15:12:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:12:54,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:12:54,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:12:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-10-15 15:12:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:12:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:12:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:12:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-15 15:12:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:12:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:12:54,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:12:54,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:12:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2024-10-15 15:12:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:54,518 INFO L134 CoverageAnalysis]: Checked inductivity of 20074 backedges. 1634 proven. 2187 refuted. 0 times theorem prover too weak. 16253 trivial. 0 not checked. [2024-10-15 15:12:54,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 15:12:54,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660073891] [2024-10-15 15:12:54,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660073891] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 15:12:54,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299803984] [2024-10-15 15:12:54,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-15 15:12:54,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:12:54,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 15:12:54,523 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) [2024-10-15 15:12:54,528 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-15 15:12:55,017 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-15 15:12:55,017 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 15:12:55,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 2442 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-15 15:12:55,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 15:12:55,156 INFO L134 CoverageAnalysis]: Checked inductivity of 20074 backedges. 1640 proven. 2215 refuted. 0 times theorem prover too weak. 16219 trivial. 0 not checked. [2024-10-15 15:12:55,156 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 15:12:57,823 INFO L134 CoverageAnalysis]: Checked inductivity of 20074 backedges. 1640 proven. 2256 refuted. 0 times theorem prover too weak. 16178 trivial. 0 not checked. [2024-10-15 15:12:57,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299803984] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 15:12:57,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 15:12:57,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 25] total 31 [2024-10-15 15:12:57,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974403709] [2024-10-15 15:12:57,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 15:12:57,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-15 15:12:57,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 15:12:57,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-15 15:12:57,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=761, Unknown=0, NotChecked=0, Total=930 [2024-10-15 15:12:57,829 INFO L87 Difference]: Start difference. First operand 980 states and 1358 transitions. Second operand has 31 states, 30 states have (on average 2.2333333333333334) internal successors, (67), 29 states have internal predecessors, (67), 24 states have call successors, (45), 3 states have call predecessors, (45), 14 states have return successors, (46), 12 states have call predecessors, (46), 24 states have call successors, (46) [2024-10-15 15:12:58,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 15:12:58,630 INFO L93 Difference]: Finished difference Result 1346 states and 1938 transitions. [2024-10-15 15:12:58,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-15 15:12:58,631 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 2.2333333333333334) internal successors, (67), 29 states have internal predecessors, (67), 24 states have call successors, (45), 3 states have call predecessors, (45), 14 states have return successors, (46), 12 states have call predecessors, (46), 24 states have call successors, (46) Word has length 513 [2024-10-15 15:12:58,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 15:12:58,638 INFO L225 Difference]: With dead ends: 1346 [2024-10-15 15:12:58,638 INFO L226 Difference]: Without dead ends: 1180 [2024-10-15 15:12:58,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1273 GetRequests, 1201 SyntacticMatches, 12 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 963 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=900, Invalid=2882, Unknown=0, NotChecked=0, Total=3782 [2024-10-15 15:12:58,640 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 75 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-15 15:12:58,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 180 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-15 15:12:58,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2024-10-15 15:12:58,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 977. [2024-10-15 15:12:58,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 492 states have (on average 1.0548780487804879) internal successors, (519), 492 states have internal predecessors, (519), 305 states have call successors, (305), 154 states have call predecessors, (305), 179 states have return successors, (501), 330 states have call predecessors, (501), 304 states have call successors, (501) [2024-10-15 15:12:58,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1325 transitions. [2024-10-15 15:12:58,862 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1325 transitions. Word has length 513 [2024-10-15 15:12:58,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 15:12:58,862 INFO L471 AbstractCegarLoop]: Abstraction has 977 states and 1325 transitions. [2024-10-15 15:12:58,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 2.2333333333333334) internal successors, (67), 29 states have internal predecessors, (67), 24 states have call successors, (45), 3 states have call predecessors, (45), 14 states have return successors, (46), 12 states have call predecessors, (46), 24 states have call successors, (46) [2024-10-15 15:12:58,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:12:58,862 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1325 transitions. [2024-10-15 15:12:58,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2024-10-15 15:12:58,868 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 15:12:58,868 INFO L215 NwaCegarLoop]: trace histogram [127, 127, 64, 63, 63, 63, 63, 63, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 15:12:58,886 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-15 15:12:59,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:12:59,073 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 15:12:59,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:12:59,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1634968839, now seen corresponding path program 15 times [2024-10-15 15:12:59,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 15:12:59,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561885760] [2024-10-15 15:12:59,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 15:12:59,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 15:12:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:59,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 15:12:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:59,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-15 15:12:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:12:59,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:12:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:00,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:13:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:00,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-15 15:13:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:13:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-15 15:13:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:00,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:13:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-15 15:13:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:13:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-10-15 15:13:00,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:13:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-15 15:13:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:13:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-15 15:13:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:13:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-15 15:13:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:13:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 641 [2024-10-15 15:13:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:00,604 INFO L134 CoverageAnalysis]: Checked inductivity of 35962 backedges. 525 proven. 2772 refuted. 0 times theorem prover too weak. 32665 trivial. 0 not checked. [2024-10-15 15:13:00,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 15:13:00,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561885760] [2024-10-15 15:13:00,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561885760] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 15:13:00,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026801529] [2024-10-15 15:13:00,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-15 15:13:00,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:13:00,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 15:13:00,606 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) [2024-10-15 15:13:00,607 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-15 15:13:00,864 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2024-10-15 15:13:00,864 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 15:13:00,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-10-15 15:13:00,873 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 15:13:01,043 INFO L134 CoverageAnalysis]: Checked inductivity of 35962 backedges. 492 proven. 2446 refuted. 0 times theorem prover too weak. 33024 trivial. 0 not checked. [2024-10-15 15:13:01,043 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 15:13:03,338 INFO L134 CoverageAnalysis]: Checked inductivity of 35962 backedges. 492 proven. 2487 refuted. 0 times theorem prover too weak. 32983 trivial. 0 not checked. [2024-10-15 15:13:03,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026801529] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 15:13:03,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 15:13:03,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16, 25] total 42 [2024-10-15 15:13:03,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545081717] [2024-10-15 15:13:03,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 15:13:03,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-10-15 15:13:03,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 15:13:03,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-10-15 15:13:03,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1521, Unknown=0, NotChecked=0, Total=1722 [2024-10-15 15:13:03,341 INFO L87 Difference]: Start difference. First operand 977 states and 1325 transitions. Second operand has 42 states, 40 states have (on average 1.875) internal successors, (75), 39 states have internal predecessors, (75), 26 states have call successors, (36), 2 states have call predecessors, (36), 23 states have return successors, (48), 24 states have call predecessors, (48), 26 states have call successors, (48) [2024-10-15 15:13:04,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 15:13:04,934 INFO L93 Difference]: Finished difference Result 1511 states and 1970 transitions. [2024-10-15 15:13:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-10-15 15:13:04,935 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 40 states have (on average 1.875) internal successors, (75), 39 states have internal predecessors, (75), 26 states have call successors, (36), 2 states have call predecessors, (36), 23 states have return successors, (48), 24 states have call predecessors, (48), 26 states have call successors, (48) Word has length 673 [2024-10-15 15:13:04,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 15:13:04,943 INFO L225 Difference]: With dead ends: 1511 [2024-10-15 15:13:04,943 INFO L226 Difference]: Without dead ends: 1507 [2024-10-15 15:13:04,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1681 GetRequests, 1586 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2346 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1315, Invalid=7997, Unknown=0, NotChecked=0, Total=9312 [2024-10-15 15:13:04,945 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 153 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-15 15:13:04,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 314 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-15 15:13:04,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2024-10-15 15:13:05,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 980. [2024-10-15 15:13:05,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 494 states have (on average 1.0546558704453441) internal successors, (521), 494 states have internal predecessors, (521), 305 states have call successors, (305), 154 states have call predecessors, (305), 180 states have return successors, (502), 331 states have call predecessors, (502), 304 states have call successors, (502) [2024-10-15 15:13:05,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1328 transitions. [2024-10-15 15:13:05,265 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1328 transitions. Word has length 673 [2024-10-15 15:13:05,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 15:13:05,266 INFO L471 AbstractCegarLoop]: Abstraction has 980 states and 1328 transitions. [2024-10-15 15:13:05,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 40 states have (on average 1.875) internal successors, (75), 39 states have internal predecessors, (75), 26 states have call successors, (36), 2 states have call predecessors, (36), 23 states have return successors, (48), 24 states have call predecessors, (48), 26 states have call successors, (48) [2024-10-15 15:13:05,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:13:05,266 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1328 transitions. [2024-10-15 15:13:05,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 680 [2024-10-15 15:13:05,271 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 15:13:05,272 INFO L215 NwaCegarLoop]: trace histogram [127, 127, 64, 63, 63, 63, 63, 63, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 15:13:05,287 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-10-15 15:13:05,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-15 15:13:05,476 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 15:13:05,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 15:13:05,476 INFO L85 PathProgramCache]: Analyzing trace with hash -62262803, now seen corresponding path program 16 times [2024-10-15 15:13:05,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 15:13:05,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240144675] [2024-10-15 15:13:05,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 15:13:05,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 15:13:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:12,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 15:13:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:12,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-15 15:13:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:19,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:20,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:21,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:21,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:21,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:13:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:21,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-15 15:13:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:21,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:13:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:21,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-15 15:13:21,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:22,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:13:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-15 15:13:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:22,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:13:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:22,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-10-15 15:13:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:24,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:24,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:24,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:25,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:13:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:25,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:25,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-15 15:13:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:13:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-15 15:13:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:25,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:26,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:13:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-15 15:13:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-15 15:13:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:26,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-15 15:13:26,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:26,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-15 15:13:26,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 641 [2024-10-15 15:13:26,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-15 15:13:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 15:13:26,714 INFO L134 CoverageAnalysis]: Checked inductivity of 35990 backedges. 193 proven. 12012 refuted. 0 times theorem prover too weak. 23785 trivial. 0 not checked. [2024-10-15 15:13:26,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 15:13:26,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240144675] [2024-10-15 15:13:26,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240144675] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 15:13:26,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290796463] [2024-10-15 15:13:26,714 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-15 15:13:26,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 15:13:26,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 15:13:26,716 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) [2024-10-15 15:13:26,717 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-15 15:13:27,233 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-15 15:13:27,233 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 15:13:27,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 3240 conjuncts, 663 conjuncts are in the unsatisfiable core [2024-10-15 15:13:27,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 15:13:28,320 INFO L134 CoverageAnalysis]: Checked inductivity of 35990 backedges. 0 proven. 12010 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2024-10-15 15:13:28,320 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 15:13:47,822 INFO L134 CoverageAnalysis]: Checked inductivity of 35990 backedges. 0 proven. 35698 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-10-15 15:13:47,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290796463] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 15:13:47,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 15:13:47,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 29, 206] total 246 [2024-10-15 15:13:47,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635354208] [2024-10-15 15:13:47,823 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 15:13:47,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 246 states [2024-10-15 15:13:47,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 15:13:47,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 246 interpolants. [2024-10-15 15:13:47,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=856, Invalid=59414, Unknown=0, NotChecked=0, Total=60270 [2024-10-15 15:13:47,832 INFO L87 Difference]: Start difference. First operand 980 states and 1328 transitions. Second operand has 246 states, 178 states have (on average 1.7865168539325842) internal successors, (318), 193 states have internal predecessors, (318), 103 states have call successors, (144), 67 states have call predecessors, (144), 123 states have return successors, (163), 126 states have call predecessors, (163), 103 states have call successors, (163)