./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 ca4ee3dd Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/recHanoi01.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85b02fad28964214b0cd332ac12fce3136c6c5e9247130ab67f1c2c3baea22f9 --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 0.2.4-tmp.dk.referee-eval-ca4ee3d-m [2024-09-20 19:47:20,943 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 19:47:21,003 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-20 19:47:21,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 19:47:21,007 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 19:47:21,035 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 19:47:21,036 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 19:47:21,036 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 19:47:21,037 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 19:47:21,038 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 19:47:21,038 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 19:47:21,038 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 19:47:21,039 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 19:47:21,040 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 19:47:21,040 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 19:47:21,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 19:47:21,041 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 19:47:21,041 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 19:47:21,041 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 19:47:21,042 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 19:47:21,042 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 19:47:21,043 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 19:47:21,043 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 19:47:21,043 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 19:47:21,043 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 19:47:21,044 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 19:47:21,044 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 19:47:21,044 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 19:47:21,044 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 19:47:21,045 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 19:47:21,045 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 19:47:21,045 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 19:47:21,045 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 19:47:21,046 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 19:47:21,046 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 19:47:21,046 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 19:47:21,046 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 19:47:21,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 19:47:21,047 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 19:47:21,047 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 19:47:21,048 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 19:47:21,050 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 19:47:21,050 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85b02fad28964214b0cd332ac12fce3136c6c5e9247130ab67f1c2c3baea22f9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false [2024-09-20 19:47:21,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 19:47:21,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 19:47:21,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 19:47:21,327 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 19:47:21,327 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 19:47:21,328 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursive/recHanoi01.c [2024-09-20 19:47:22,666 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 19:47:22,839 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 19:47:22,839 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive/recHanoi01.c [2024-09-20 19:47:22,854 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/e676a1d64/723aa14c5c4849df9e3c6a52b277b147/FLAG25911e65e [2024-09-20 19:47:23,237 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/e676a1d64/723aa14c5c4849df9e3c6a52b277b147 [2024-09-20 19:47:23,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 19:47:23,240 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-20 19:47:23,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 19:47:23,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 19:47:23,248 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 19:47:23,248 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 07:47:23" (1/1) ... [2024-09-20 19:47:23,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a97936c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:47:23, skipping insertion in model container [2024-09-20 19:47:23,250 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 07:47:23" (1/1) ... [2024-09-20 19:47:23,267 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 19:47:23,422 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] [2024-09-20 19:47:23,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 19:47:23,449 INFO L200 MainTranslator]: Completed pre-run [2024-09-20 19:47:23,466 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] [2024-09-20 19:47:23,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 19:47:23,483 INFO L204 MainTranslator]: Completed translation [2024-09-20 19:47:23,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:47:23 WrapperNode [2024-09-20 19:47:23,484 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 19:47:23,485 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-20 19:47:23,485 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-20 19:47:23,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-20 19:47:23,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:47:23" (1/1) ... [2024-09-20 19:47:23,502 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:47:23" (1/1) ... [2024-09-20 19:47:23,512 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-20 19:47:23,512 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-20 19:47:23,513 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 19:47:23,513 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 19:47:23,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 19:47:23,523 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:47:23" (1/1) ... [2024-09-20 19:47:23,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:47:23" (1/1) ... [2024-09-20 19:47:23,529 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:47:23" (1/1) ... [2024-09-20 19:47:23,545 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-20 19:47:23,545 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:47:23" (1/1) ... [2024-09-20 19:47:23,545 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:47:23" (1/1) ... [2024-09-20 19:47:23,548 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:47:23" (1/1) ... [2024-09-20 19:47:23,549 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:47:23" (1/1) ... [2024-09-20 19:47:23,550 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:47:23" (1/1) ... [2024-09-20 19:47:23,550 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:47:23" (1/1) ... [2024-09-20 19:47:23,552 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 19:47:23,552 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 19:47:23,553 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 19:47:23,553 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 19:47:23,553 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:47:23" (1/1) ... [2024-09-20 19:47:23,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 19:47:23,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 19:47:23,582 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-20 19:47:23,584 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-20 19:47:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 19:47:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure applyHanoi [2024-09-20 19:47:23,620 INFO L138 BoogieDeclarations]: Found implementation of procedure applyHanoi [2024-09-20 19:47:23,621 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2024-09-20 19:47:23,621 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2024-09-20 19:47:23,621 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 19:47:23,621 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 19:47:23,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-20 19:47:23,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 19:47:23,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 19:47:23,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 19:47:23,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 19:47:23,678 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 19:47:23,679 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 19:47:23,808 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-09-20 19:47:23,808 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 19:47:23,834 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 19:47:23,834 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 19:47:23,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 07:47:23 BoogieIcfgContainer [2024-09-20 19:47:23,835 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 19:47:23,837 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-20 19:47:23,837 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-20 19:47:23,840 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-20 19:47:23,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 07:47:23" (1/3) ... [2024-09-20 19:47:23,842 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580288c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 07:47:23, skipping insertion in model container [2024-09-20 19:47:23,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:47:23" (2/3) ... [2024-09-20 19:47:23,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580288c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 07:47:23, skipping insertion in model container [2024-09-20 19:47:23,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 07:47:23" (3/3) ... [2024-09-20 19:47:23,845 INFO L112 eAbstractionObserver]: Analyzing ICFG recHanoi01.c [2024-09-20 19:47:23,861 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-20 19:47:23,861 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-20 19:47:23,919 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-20 19:47:23,924 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7ae21b63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-20 19:47:23,925 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-20 19:47:23,927 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) [2024-09-20 19:47:23,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-09-20 19:47:23,934 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 19:47:23,935 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 19:47:23,935 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 19:47:23,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:23,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1116782284, now seen corresponding path program 1 times [2024-09-20 19:47:23,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 19:47:23,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305333020] [2024-09-20 19:47:23,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 19:47:23,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 19:47:24,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:24,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 19:47:24,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:24,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-20 19:47:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:24,251 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-20 19:47:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:24,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 19:47:24,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 19:47:24,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305333020] [2024-09-20 19:47:24,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305333020] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-20 19:47:24,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-20 19:47:24,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-20 19:47:24,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698872960] [2024-09-20 19:47:24,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 19:47:24,277 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-20 19:47:24,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 19:47:24,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-20 19:47:24,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-20 19:47:24,305 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) [2024-09-20 19:47:24,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 19:47:24,459 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2024-09-20 19:47:24,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-20 19:47:24,462 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 [2024-09-20 19:47:24,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 19:47:24,470 INFO L225 Difference]: With dead ends: 47 [2024-09-20 19:47:24,470 INFO L226 Difference]: Without dead ends: 26 [2024-09-20 19:47:24,473 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-20 19:47:24,478 INFO L434 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 [2024-09-20 19:47:24,479 INFO L435 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] [2024-09-20 19:47:24,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-09-20 19:47:24,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-09-20 19:47:24,511 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) [2024-09-20 19:47:24,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2024-09-20 19:47:24,514 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 19 [2024-09-20 19:47:24,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 19:47:24,515 INFO L474 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2024-09-20 19:47:24,515 INFO L475 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) [2024-09-20 19:47:24,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:24,516 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2024-09-20 19:47:24,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-20 19:47:24,517 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 19:47:24,518 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 19:47:24,518 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-20 19:47:24,518 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 19:47:24,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:24,519 INFO L85 PathProgramCache]: Analyzing trace with hash -715877671, now seen corresponding path program 1 times [2024-09-20 19:47:24,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 19:47:24,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451707245] [2024-09-20 19:47:24,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 19:47:24,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 19:47:24,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:24,774 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 19:47:24,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:24,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-20 19:47:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:24,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:24,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:24,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:24,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:24,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-20 19:47:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:25,003 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-20 19:47:25,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 19:47:25,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451707245] [2024-09-20 19:47:25,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451707245] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 19:47:25,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645012209] [2024-09-20 19:47:25,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 19:47:25,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:47:25,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 19:47:25,007 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-20 19:47:25,009 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-20 19:47:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:25,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-20 19:47:25,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 19:47:25,218 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-20 19:47:25,219 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 19:47:25,474 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-20 19:47:25,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645012209] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 19:47:25,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 19:47:25,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 17 [2024-09-20 19:47:25,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850329183] [2024-09-20 19:47:25,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 19:47:25,477 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-20 19:47:25,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 19:47:25,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-20 19:47:25,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-09-20 19:47:25,480 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) [2024-09-20 19:47:25,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 19:47:25,891 INFO L93 Difference]: Finished difference Result 77 states and 107 transitions. [2024-09-20 19:47:25,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-20 19:47:25,892 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 [2024-09-20 19:47:25,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 19:47:25,894 INFO L225 Difference]: With dead ends: 77 [2024-09-20 19:47:25,894 INFO L226 Difference]: Without dead ends: 71 [2024-09-20 19:47:25,896 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=148, Invalid=608, Unknown=0, NotChecked=0, Total=756 [2024-09-20 19:47:25,897 INFO L434 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, 0.3s IncrementalHoareTripleChecker+Time [2024-09-20 19:47:25,897 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 123 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-20 19:47:25,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-09-20 19:47:25,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 60. [2024-09-20 19:47:25,929 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) [2024-09-20 19:47:25,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 86 transitions. [2024-09-20 19:47:25,931 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 86 transitions. Word has length 29 [2024-09-20 19:47:25,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 19:47:25,932 INFO L474 AbstractCegarLoop]: Abstraction has 60 states and 86 transitions. [2024-09-20 19:47:25,932 INFO L475 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) [2024-09-20 19:47:25,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:25,933 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 86 transitions. [2024-09-20 19:47:25,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-20 19:47:25,935 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 19:47:25,935 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 19:47:25,951 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-20 19:47:26,136 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:47:26,136 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 19:47:26,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:26,137 INFO L85 PathProgramCache]: Analyzing trace with hash 334206910, now seen corresponding path program 2 times [2024-09-20 19:47:26,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 19:47:26,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743889244] [2024-09-20 19:47:26,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 19:47:26,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 19:47:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:26,203 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 19:47:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:26,207 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-20 19:47:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:26,264 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:26,291 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:26,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:26,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:26,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:26,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-20 19:47:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:26,369 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-20 19:47:26,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 19:47:26,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743889244] [2024-09-20 19:47:26,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743889244] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 19:47:26,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120096997] [2024-09-20 19:47:26,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-20 19:47:26,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:47:26,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 19:47:26,372 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-20 19:47:26,373 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-20 19:47:26,439 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-20 19:47:26,439 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 19:47:26,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-20 19:47:26,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 19:47:26,547 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-09-20 19:47:26,547 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 19:47:26,927 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-20 19:47:26,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120096997] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 19:47:26,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 19:47:26,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 11] total 18 [2024-09-20 19:47:26,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385317881] [2024-09-20 19:47:26,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 19:47:26,929 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-20 19:47:26,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 19:47:26,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-20 19:47:26,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-09-20 19:47:26,931 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) [2024-09-20 19:47:27,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 19:47:27,281 INFO L93 Difference]: Finished difference Result 111 states and 172 transitions. [2024-09-20 19:47:27,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-20 19:47:27,282 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 [2024-09-20 19:47:27,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 19:47:27,284 INFO L225 Difference]: With dead ends: 111 [2024-09-20 19:47:27,284 INFO L226 Difference]: Without dead ends: 77 [2024-09-20 19:47:27,285 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 80 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=175, Invalid=695, Unknown=0, NotChecked=0, Total=870 [2024-09-20 19:47:27,286 INFO L434 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 [2024-09-20 19:47:27,287 INFO L435 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] [2024-09-20 19:47:27,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-09-20 19:47:27,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 58. [2024-09-20 19:47:27,304 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) [2024-09-20 19:47:27,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 72 transitions. [2024-09-20 19:47:27,305 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 72 transitions. Word has length 39 [2024-09-20 19:47:27,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 19:47:27,306 INFO L474 AbstractCegarLoop]: Abstraction has 58 states and 72 transitions. [2024-09-20 19:47:27,306 INFO L475 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) [2024-09-20 19:47:27,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:27,307 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2024-09-20 19:47:27,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-20 19:47:27,308 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 19:47:27,309 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 19:47:27,326 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-20 19:47:27,513 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:47:27,514 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 19:47:27,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:27,514 INFO L85 PathProgramCache]: Analyzing trace with hash 2051145677, now seen corresponding path program 1 times [2024-09-20 19:47:27,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 19:47:27,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721420941] [2024-09-20 19:47:27,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 19:47:27,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 19:47:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:27,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 19:47:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:27,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-20 19:47:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:27,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:27,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:27,659 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-20 19:47:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:27,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:27,742 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-20 19:47:27,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 19:47:27,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721420941] [2024-09-20 19:47:27,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721420941] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 19:47:27,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855181902] [2024-09-20 19:47:27,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 19:47:27,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:47:27,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 19:47:27,747 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-20 19:47:27,755 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-20 19:47:27,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:27,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-20 19:47:27,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 19:47:27,879 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-20 19:47:27,879 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 19:47:28,148 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-20 19:47:28,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855181902] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 19:47:28,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 19:47:28,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 11] total 20 [2024-09-20 19:47:28,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819715243] [2024-09-20 19:47:28,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 19:47:28,153 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-20 19:47:28,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 19:47:28,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-20 19:47:28,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2024-09-20 19:47:28,154 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) [2024-09-20 19:47:28,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 19:47:28,394 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2024-09-20 19:47:28,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-20 19:47:28,395 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 [2024-09-20 19:47:28,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 19:47:28,396 INFO L225 Difference]: With dead ends: 65 [2024-09-20 19:47:28,397 INFO L226 Difference]: Without dead ends: 53 [2024-09-20 19:47:28,399 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 66 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=140, Invalid=616, Unknown=0, NotChecked=0, Total=756 [2024-09-20 19:47:28,400 INFO L434 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 [2024-09-20 19:47:28,400 INFO L435 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] [2024-09-20 19:47:28,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-09-20 19:47:28,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2024-09-20 19:47:28,414 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) [2024-09-20 19:47:28,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 63 transitions. [2024-09-20 19:47:28,416 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 63 transitions. Word has length 35 [2024-09-20 19:47:28,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 19:47:28,417 INFO L474 AbstractCegarLoop]: Abstraction has 51 states and 63 transitions. [2024-09-20 19:47:28,417 INFO L475 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) [2024-09-20 19:47:28,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:28,417 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2024-09-20 19:47:28,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-20 19:47:28,419 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 19:47:28,419 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 19:47:28,434 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-20 19:47:28,622 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:47:28,623 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 19:47:28,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:28,623 INFO L85 PathProgramCache]: Analyzing trace with hash 2007684205, now seen corresponding path program 2 times [2024-09-20 19:47:28,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 19:47:28,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094906875] [2024-09-20 19:47:28,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 19:47:28,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 19:47:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:28,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 19:47:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:28,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-20 19:47:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:28,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:29,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:29,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:29,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:47:29,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:29,118 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:29,129 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:29,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-20 19:47:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:29,187 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:29,232 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 9 proven. 34 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-09-20 19:47:29,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 19:47:29,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094906875] [2024-09-20 19:47:29,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094906875] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 19:47:29,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36485281] [2024-09-20 19:47:29,233 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-20 19:47:29,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:47:29,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 19:47:29,235 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-20 19:47:29,236 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-20 19:47:29,304 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-20 19:47:29,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 19:47:29,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-09-20 19:47:29,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 19:47:29,472 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-09-20 19:47:29,472 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 19:47:30,019 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-20 19:47:30,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36485281] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 19:47:30,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 19:47:30,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 18] total 34 [2024-09-20 19:47:30,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284661114] [2024-09-20 19:47:30,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 19:47:30,021 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-09-20 19:47:30,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 19:47:30,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-09-20 19:47:30,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122 [2024-09-20 19:47:30,023 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) [2024-09-20 19:47:31,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 19:47:31,136 INFO L93 Difference]: Finished difference Result 104 states and 142 transitions. [2024-09-20 19:47:31,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-20 19:47:31,137 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 [2024-09-20 19:47:31,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 19:47:31,139 INFO L225 Difference]: With dead ends: 104 [2024-09-20 19:47:31,139 INFO L226 Difference]: Without dead ends: 100 [2024-09-20 19:47:31,141 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 850 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=532, Invalid=3250, Unknown=0, NotChecked=0, Total=3782 [2024-09-20 19:47:31,141 INFO L434 NwaCegarLoop]: 16 mSDtfsCounter, 182 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-20 19:47:31,142 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 194 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-20 19:47:31,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-09-20 19:47:31,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 83. [2024-09-20 19:47:31,171 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) [2024-09-20 19:47:31,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 114 transitions. [2024-09-20 19:47:31,176 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 114 transitions. Word has length 55 [2024-09-20 19:47:31,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 19:47:31,176 INFO L474 AbstractCegarLoop]: Abstraction has 83 states and 114 transitions. [2024-09-20 19:47:31,177 INFO L475 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) [2024-09-20 19:47:31,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:31,177 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 114 transitions. [2024-09-20 19:47:31,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-09-20 19:47:31,181 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 19:47:31,181 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 19:47:31,201 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-20 19:47:31,385 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:47:31,386 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 19:47:31,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:31,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1984388281, now seen corresponding path program 3 times [2024-09-20 19:47:31,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 19:47:31,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84736204] [2024-09-20 19:47:31,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 19:47:31,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 19:47:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:31,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 19:47:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:31,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-20 19:47:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:31,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:31,519 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:31,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:31,545 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:47:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:31,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:31,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:31,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:31,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-20 19:47:31,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:31,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:31,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:31,636 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 13 proven. 45 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-09-20 19:47:31,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 19:47:31,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84736204] [2024-09-20 19:47:31,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84736204] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 19:47:31,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780444639] [2024-09-20 19:47:31,637 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-20 19:47:31,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:47:31,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 19:47:31,639 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-20 19:47:31,640 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-20 19:47:31,703 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-09-20 19:47:31,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 19:47:31,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-20 19:47:31,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 19:47:31,797 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 41 proven. 12 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-09-20 19:47:31,797 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 19:47:32,329 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 41 proven. 21 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-09-20 19:47:32,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780444639] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 19:47:32,331 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 19:47:32,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 15] total 24 [2024-09-20 19:47:32,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301819342] [2024-09-20 19:47:32,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 19:47:32,332 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-20 19:47:32,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 19:47:32,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-20 19:47:32,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2024-09-20 19:47:32,333 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) [2024-09-20 19:47:32,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 19:47:32,648 INFO L93 Difference]: Finished difference Result 145 states and 223 transitions. [2024-09-20 19:47:32,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-20 19:47:32,649 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 [2024-09-20 19:47:32,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 19:47:32,651 INFO L225 Difference]: With dead ends: 145 [2024-09-20 19:47:32,651 INFO L226 Difference]: Without dead ends: 79 [2024-09-20 19:47:32,652 INFO L433 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 [2024-09-20 19:47:32,653 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 29 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2024-09-20 19:47:32,653 INFO L435 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] [2024-09-20 19:47:32,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-09-20 19:47:32,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 69. [2024-09-20 19:47:32,680 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) [2024-09-20 19:47:32,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 93 transitions. [2024-09-20 19:47:32,681 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 93 transitions. Word has length 61 [2024-09-20 19:47:32,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 19:47:32,681 INFO L474 AbstractCegarLoop]: Abstraction has 69 states and 93 transitions. [2024-09-20 19:47:32,681 INFO L475 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) [2024-09-20 19:47:32,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:32,682 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 93 transitions. [2024-09-20 19:47:32,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-09-20 19:47:32,687 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 19:47:32,687 INFO L216 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] [2024-09-20 19:47:32,703 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-20 19:47:32,887 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-20 19:47:32,888 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 19:47:32,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:32,888 INFO L85 PathProgramCache]: Analyzing trace with hash 617404749, now seen corresponding path program 4 times [2024-09-20 19:47:32,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 19:47:32,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705913732] [2024-09-20 19:47:32,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 19:47:32,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 19:47:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:32,953 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 19:47:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:32,956 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-20 19:47:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:33,026 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:33,071 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:33,095 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:33,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:33,120 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:33,124 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:47:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:33,129 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:33,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:33,131 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:33,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:47:33,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:33,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:33,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:33,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-20 19:47:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:33,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:33,175 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 71 proven. 69 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-09-20 19:47:33,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 19:47:33,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705913732] [2024-09-20 19:47:33,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705913732] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 19:47:33,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684936245] [2024-09-20 19:47:33,176 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-20 19:47:33,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:47:33,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 19:47:33,178 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-20 19:47:33,179 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-20 19:47:33,256 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-20 19:47:33,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 19:47:33,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-20 19:47:33,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 19:47:33,323 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 74 proven. 70 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-09-20 19:47:33,323 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 19:47:33,820 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 74 proven. 75 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-09-20 19:47:33,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684936245] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 19:47:33,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 19:47:33,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 13] total 19 [2024-09-20 19:47:33,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578852012] [2024-09-20 19:47:33,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 19:47:33,821 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-20 19:47:33,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 19:47:33,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-20 19:47:33,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-09-20 19:47:33,822 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) [2024-09-20 19:47:34,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 19:47:34,073 INFO L93 Difference]: Finished difference Result 122 states and 179 transitions. [2024-09-20 19:47:34,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-20 19:47:34,074 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 [2024-09-20 19:47:34,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 19:47:34,075 INFO L225 Difference]: With dead ends: 122 [2024-09-20 19:47:34,076 INFO L226 Difference]: Without dead ends: 76 [2024-09-20 19:47:34,077 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 163 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=258, Invalid=734, Unknown=0, NotChecked=0, Total=992 [2024-09-20 19:47:34,077 INFO L434 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 [2024-09-20 19:47:34,078 INFO L435 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] [2024-09-20 19:47:34,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-09-20 19:47:34,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 66. [2024-09-20 19:47:34,098 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) [2024-09-20 19:47:34,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 88 transitions. [2024-09-20 19:47:34,100 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 88 transitions. Word has length 75 [2024-09-20 19:47:34,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 19:47:34,101 INFO L474 AbstractCegarLoop]: Abstraction has 66 states and 88 transitions. [2024-09-20 19:47:34,101 INFO L475 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) [2024-09-20 19:47:34,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:34,101 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 88 transitions. [2024-09-20 19:47:34,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-09-20 19:47:34,102 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 19:47:34,102 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 8, 7, 7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 19:47:34,120 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-20 19:47:34,307 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:47:34,308 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 19:47:34,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:34,308 INFO L85 PathProgramCache]: Analyzing trace with hash 747420525, now seen corresponding path program 5 times [2024-09-20 19:47:34,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 19:47:34,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705270860] [2024-09-20 19:47:34,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 19:47:34,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 19:47:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:34,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 19:47:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:34,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-20 19:47:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:34,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:34,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:34,544 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:34,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:34,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:47:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:34,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:34,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:34,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:34,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:47:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:34,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:34,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:34,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:34,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:47:34,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:34,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:34,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:34,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:34,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-20 19:47:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:34,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:34,658 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 42 proven. 135 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2024-09-20 19:47:34,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 19:47:34,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705270860] [2024-09-20 19:47:34,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705270860] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 19:47:34,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635239608] [2024-09-20 19:47:34,659 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-20 19:47:34,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:47:34,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 19:47:34,661 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-20 19:47:34,663 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-20 19:47:34,759 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2024-09-20 19:47:34,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 19:47:34,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-20 19:47:34,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 19:47:34,848 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 123 proven. 50 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2024-09-20 19:47:34,848 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 19:47:35,433 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 123 proven. 60 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2024-09-20 19:47:35,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635239608] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 19:47:35,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 19:47:35,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 15] total 24 [2024-09-20 19:47:35,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554608508] [2024-09-20 19:47:35,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 19:47:35,434 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-20 19:47:35,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 19:47:35,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-20 19:47:35,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=460, Unknown=0, NotChecked=0, Total=552 [2024-09-20 19:47:35,436 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) [2024-09-20 19:47:35,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 19:47:35,802 INFO L93 Difference]: Finished difference Result 78 states and 105 transitions. [2024-09-20 19:47:35,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-20 19:47:35,803 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 [2024-09-20 19:47:35,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 19:47:35,804 INFO L225 Difference]: With dead ends: 78 [2024-09-20 19:47:35,804 INFO L226 Difference]: Without dead ends: 74 [2024-09-20 19:47:35,805 INFO L433 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 [2024-09-20 19:47:35,806 INFO L434 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 [2024-09-20 19:47:35,806 INFO L435 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] [2024-09-20 19:47:35,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-09-20 19:47:35,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 69. [2024-09-20 19:47:35,824 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) [2024-09-20 19:47:35,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 91 transitions. [2024-09-20 19:47:35,825 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 91 transitions. Word has length 95 [2024-09-20 19:47:35,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 19:47:35,825 INFO L474 AbstractCegarLoop]: Abstraction has 69 states and 91 transitions. [2024-09-20 19:47:35,826 INFO L475 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) [2024-09-20 19:47:35,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:35,827 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 91 transitions. [2024-09-20 19:47:35,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-09-20 19:47:35,830 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 19:47:35,830 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 8, 7, 7, 7, 7, 7, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 19:47:35,846 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-20 19:47:36,034 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:47:36,035 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 19:47:36,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:36,035 INFO L85 PathProgramCache]: Analyzing trace with hash -35650631, now seen corresponding path program 6 times [2024-09-20 19:47:36,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 19:47:36,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605651566] [2024-09-20 19:47:36,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 19:47:36,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 19:47:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:36,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 19:47:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:36,369 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-20 19:47:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:36,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:36,729 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:36,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:36,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:36,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:36,769 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:47:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:36,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:36,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:36,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:47:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:36,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:36,926 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:36,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:36,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:47:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:36,973 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:36,978 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:36,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-20 19:47:36,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:37,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:37,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:37,087 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:37,128 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 22 proven. 163 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-09-20 19:47:37,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 19:47:37,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605651566] [2024-09-20 19:47:37,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605651566] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 19:47:37,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699078132] [2024-09-20 19:47:37,129 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-20 19:47:37,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:47:37,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 19:47:37,131 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-20 19:47:37,133 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-20 19:47:37,235 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2024-09-20 19:47:37,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 19:47:37,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 91 conjuncts are in the unsatisfiable core [2024-09-20 19:47:37,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 19:47:37,609 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2024-09-20 19:47:37,610 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 19:47:38,812 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 441 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-09-20 19:47:38,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699078132] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 19:47:38,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 19:47:38,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 32] total 54 [2024-09-20 19:47:38,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633111923] [2024-09-20 19:47:38,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 19:47:38,814 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-09-20 19:47:38,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 19:47:38,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-09-20 19:47:38,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=2660, Unknown=0, NotChecked=0, Total=2862 [2024-09-20 19:47:38,816 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) [2024-09-20 19:47:42,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 19:47:42,352 INFO L93 Difference]: Finished difference Result 225 states and 326 transitions. [2024-09-20 19:47:42,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2024-09-20 19:47:42,352 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 [2024-09-20 19:47:42,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 19:47:42,355 INFO L225 Difference]: With dead ends: 225 [2024-09-20 19:47:42,355 INFO L226 Difference]: Without dead ends: 221 [2024-09-20 19:47:42,358 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3743 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1935, Invalid=12827, Unknown=0, NotChecked=0, Total=14762 [2024-09-20 19:47:42,358 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 394 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 1564 mSolverCounterSat, 795 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 2359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 795 IncrementalHoareTripleChecker+Valid, 1564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-20 19:47:42,359 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 497 Invalid, 2359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [795 Valid, 1564 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-20 19:47:42,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-09-20 19:47:42,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 182. [2024-09-20 19:47:42,413 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) [2024-09-20 19:47:42,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 259 transitions. [2024-09-20 19:47:42,415 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 259 transitions. Word has length 101 [2024-09-20 19:47:42,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 19:47:42,415 INFO L474 AbstractCegarLoop]: Abstraction has 182 states and 259 transitions. [2024-09-20 19:47:42,416 INFO L475 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) [2024-09-20 19:47:42,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:42,416 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 259 transitions. [2024-09-20 19:47:42,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-09-20 19:47:42,418 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 19:47:42,418 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 8, 7, 7, 7, 7, 7, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 19:47:42,431 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-20 19:47:42,619 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:47:42,620 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 19:47:42,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:42,620 INFO L85 PathProgramCache]: Analyzing trace with hash 796330413, now seen corresponding path program 7 times [2024-09-20 19:47:42,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 19:47:42,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436416267] [2024-09-20 19:47:42,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 19:47:42,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 19:47:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:42,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 19:47:42,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:42,739 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-20 19:47:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:42,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:42,843 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:42,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:42,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:42,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:42,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:42,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:47:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:42,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:42,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:42,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:47:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:42,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:42,910 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:42,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:42,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:47:42,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:42,918 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:42,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:42,922 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-20 19:47:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:42,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:42,983 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:43,003 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:43,034 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 42 proven. 150 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-09-20 19:47:43,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 19:47:43,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436416267] [2024-09-20 19:47:43,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436416267] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 19:47:43,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827915308] [2024-09-20 19:47:43,035 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-20 19:47:43,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:47:43,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 19:47:43,037 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-20 19:47:43,039 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-20 19:47:43,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:43,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-20 19:47:43,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 19:47:43,247 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 48 proven. 138 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2024-09-20 19:47:43,247 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 19:47:43,978 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 48 proven. 156 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-09-20 19:47:43,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827915308] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 19:47:43,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 19:47:43,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 19] total 28 [2024-09-20 19:47:43,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548533147] [2024-09-20 19:47:43,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 19:47:43,979 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-09-20 19:47:43,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 19:47:43,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-09-20 19:47:43,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=634, Unknown=0, NotChecked=0, Total=756 [2024-09-20 19:47:43,980 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) [2024-09-20 19:47:44,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 19:47:44,358 INFO L93 Difference]: Finished difference Result 294 states and 473 transitions. [2024-09-20 19:47:44,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-20 19:47:44,359 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 [2024-09-20 19:47:44,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 19:47:44,361 INFO L225 Difference]: With dead ends: 294 [2024-09-20 19:47:44,361 INFO L226 Difference]: Without dead ends: 184 [2024-09-20 19:47:44,363 INFO L433 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 [2024-09-20 19:47:44,364 INFO L434 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 [2024-09-20 19:47:44,364 INFO L435 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] [2024-09-20 19:47:44,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-09-20 19:47:44,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 160. [2024-09-20 19:47:44,396 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) [2024-09-20 19:47:44,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 223 transitions. [2024-09-20 19:47:44,398 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 223 transitions. Word has length 107 [2024-09-20 19:47:44,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 19:47:44,398 INFO L474 AbstractCegarLoop]: Abstraction has 160 states and 223 transitions. [2024-09-20 19:47:44,398 INFO L475 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) [2024-09-20 19:47:44,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:44,399 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 223 transitions. [2024-09-20 19:47:44,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-09-20 19:47:44,400 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 19:47:44,401 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 16, 15, 15, 15, 15, 15, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 19:47:44,420 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-20 19:47:44,615 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-20 19:47:44,615 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 19:47:44,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:44,616 INFO L85 PathProgramCache]: Analyzing trace with hash 59611577, now seen corresponding path program 8 times [2024-09-20 19:47:44,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 19:47:44,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741960691] [2024-09-20 19:47:44,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 19:47:44,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 19:47:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:44,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 19:47:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:44,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-20 19:47:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:44,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:44,959 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,019 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:45,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:47:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,048 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:45,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:47:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,057 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:45,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,062 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:47:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,065 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,066 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,068 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-20 19:47:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,084 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,089 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,091 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,094 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:47:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,096 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,099 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:47:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:47:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,112 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,114 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-20 19:47:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,145 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:45,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 107 proven. 410 refuted. 0 times theorem prover too weak. 1567 trivial. 0 not checked. [2024-09-20 19:47:45,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 19:47:45,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741960691] [2024-09-20 19:47:45,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741960691] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 19:47:45,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526668439] [2024-09-20 19:47:45,191 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-20 19:47:45,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:47:45,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 19:47:45,193 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-20 19:47:45,194 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-20 19:47:45,351 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-20 19:47:45,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 19:47:45,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-20 19:47:45,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 19:47:45,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 115 proven. 396 refuted. 0 times theorem prover too weak. 1573 trivial. 0 not checked. [2024-09-20 19:47:45,454 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 19:47:46,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 115 proven. 416 refuted. 0 times theorem prover too weak. 1553 trivial. 0 not checked. [2024-09-20 19:47:46,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526668439] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 19:47:46,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 19:47:46,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 19] total 28 [2024-09-20 19:47:46,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094619969] [2024-09-20 19:47:46,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 19:47:46,484 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-09-20 19:47:46,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 19:47:46,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-09-20 19:47:46,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2024-09-20 19:47:46,485 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) [2024-09-20 19:47:46,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 19:47:46,955 INFO L93 Difference]: Finished difference Result 243 states and 364 transitions. [2024-09-20 19:47:46,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-20 19:47:46,956 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 [2024-09-20 19:47:46,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 19:47:46,958 INFO L225 Difference]: With dead ends: 243 [2024-09-20 19:47:46,958 INFO L226 Difference]: Without dead ends: 173 [2024-09-20 19:47:46,959 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 407 SyntacticMatches, 9 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=362, Invalid=1708, Unknown=0, NotChecked=0, Total=2070 [2024-09-20 19:47:46,960 INFO L434 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, 0.3s IncrementalHoareTripleChecker+Time [2024-09-20 19:47:46,961 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 196 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-20 19:47:46,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-09-20 19:47:46,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 160. [2024-09-20 19:47:46,998 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) [2024-09-20 19:47:47,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 217 transitions. [2024-09-20 19:47:47,001 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 217 transitions. Word has length 181 [2024-09-20 19:47:47,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 19:47:47,002 INFO L474 AbstractCegarLoop]: Abstraction has 160 states and 217 transitions. [2024-09-20 19:47:47,002 INFO L475 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) [2024-09-20 19:47:47,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:47,003 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 217 transitions. [2024-09-20 19:47:47,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-09-20 19:47:47,006 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 19:47:47,006 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 16, 15, 15, 15, 15, 15, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 19:47:47,022 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-20 19:47:47,206 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-20 19:47:47,207 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 19:47:47,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:47:47,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1713119149, now seen corresponding path program 9 times [2024-09-20 19:47:47,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 19:47:47,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072946782] [2024-09-20 19:47:47,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 19:47:47,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 19:47:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:48,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 19:47:48,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:48,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-20 19:47:48,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:48,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:48,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:48,841 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:48,931 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:48,954 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:48,958 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:48,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:47:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,016 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:49,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,026 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:47:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,107 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:47:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,183 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-20 19:47:49,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:49,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,436 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:47:49,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:47:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:47:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:47:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-20 19:47:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,742 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:47:49,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:47:49,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 47 proven. 707 refuted. 0 times theorem prover too weak. 1346 trivial. 0 not checked. [2024-09-20 19:47:49,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 19:47:49,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072946782] [2024-09-20 19:47:49,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072946782] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 19:47:49,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243259233] [2024-09-20 19:47:49,797 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-20 19:47:49,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:47:49,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 19:47:49,799 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-20 19:47:49,800 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-20 19:47:49,989 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2024-09-20 19:47:49,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 19:47:49,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 175 conjuncts are in the unsatisfiable core [2024-09-20 19:47:49,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 19:47:50,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 0 proven. 705 refuted. 0 times theorem prover too weak. 1395 trivial. 0 not checked. [2024-09-20 19:47:50,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 19:47:53,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 0 proven. 2025 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-09-20 19:47:53,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243259233] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 19:47:53,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 19:47:53,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 21, 58] total 86 [2024-09-20 19:47:53,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126626120] [2024-09-20 19:47:53,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 19:47:53,385 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2024-09-20 19:47:53,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 19:47:53,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2024-09-20 19:47:53,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=6990, Unknown=0, NotChecked=0, Total=7310 [2024-09-20 19:47:53,387 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) [2024-09-20 19:48:12,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 19:48:12,575 INFO L93 Difference]: Finished difference Result 527 states and 795 transitions. [2024-09-20 19:48:12,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2024-09-20 19:48:12,576 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 [2024-09-20 19:48:12,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 19:48:12,581 INFO L225 Difference]: With dead ends: 527 [2024-09-20 19:48:12,581 INFO L226 Difference]: Without dead ends: 523 [2024-09-20 19:48:12,589 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 668 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 246 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17428 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=8192, Invalid=53064, Unknown=0, NotChecked=0, Total=61256 [2024-09-20 19:48:12,589 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 1719 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 3103 mSolverCounterSat, 3560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1719 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 6663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3560 IncrementalHoareTripleChecker+Valid, 3103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-09-20 19:48:12,590 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1719 Valid, 873 Invalid, 6663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3560 Valid, 3103 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-09-20 19:48:12,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-09-20 19:48:12,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 440. [2024-09-20 19:48:12,675 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) [2024-09-20 19:48:12,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 634 transitions. [2024-09-20 19:48:12,679 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 634 transitions. Word has length 187 [2024-09-20 19:48:12,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 19:48:12,680 INFO L474 AbstractCegarLoop]: Abstraction has 440 states and 634 transitions. [2024-09-20 19:48:12,680 INFO L475 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) [2024-09-20 19:48:12,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:48:12,680 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 634 transitions. [2024-09-20 19:48:12,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-09-20 19:48:12,684 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 19:48:12,684 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 16, 15, 15, 15, 15, 15, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 19:48:12,702 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-20 19:48:12,884 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:48:12,885 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 19:48:12,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:48:12,886 INFO L85 PathProgramCache]: Analyzing trace with hash -629811463, now seen corresponding path program 10 times [2024-09-20 19:48:12,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 19:48:12,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179737657] [2024-09-20 19:48:12,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 19:48:12,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 19:48:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,044 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 19:48:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-20 19:48:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:13,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,240 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,257 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,280 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:13,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,284 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:48:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,287 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,288 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:48:13,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,298 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,300 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:48:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,302 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,304 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-20 19:48:13,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,329 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,330 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:48:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:13,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,335 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:48:13,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,339 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,341 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:13,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:13,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,345 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:48:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,348 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:13,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:13,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-20 19:48:13,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,384 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:13,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2122 backedges. 107 proven. 431 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked. [2024-09-20 19:48:13,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 19:48:13,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179737657] [2024-09-20 19:48:13,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179737657] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 19:48:13,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471127985] [2024-09-20 19:48:13,480 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-20 19:48:13,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:48:13,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 19:48:13,483 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-20 19:48:13,484 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-20 19:48:13,659 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-20 19:48:13,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 19:48:13,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 827 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-20 19:48:13,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 19:48:13,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2122 backedges. 115 proven. 415 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2024-09-20 19:48:13,774 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 19:48:15,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2122 backedges. 115 proven. 447 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2024-09-20 19:48:15,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471127985] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 19:48:15,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 19:48:15,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 23] total 32 [2024-09-20 19:48:15,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442327358] [2024-09-20 19:48:15,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 19:48:15,190 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-20 19:48:15,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 19:48:15,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-20 19:48:15,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=837, Unknown=0, NotChecked=0, Total=992 [2024-09-20 19:48:15,191 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) [2024-09-20 19:48:15,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 19:48:15,728 INFO L93 Difference]: Finished difference Result 686 states and 1091 transitions. [2024-09-20 19:48:15,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-20 19:48:15,729 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 [2024-09-20 19:48:15,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 19:48:15,735 INFO L225 Difference]: With dead ends: 686 [2024-09-20 19:48:15,735 INFO L226 Difference]: Without dead ends: 470 [2024-09-20 19:48:15,737 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 431 SyntacticMatches, 11 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 647 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=484, Invalid=2272, Unknown=0, NotChecked=0, Total=2756 [2024-09-20 19:48:15,738 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 38 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 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 [2024-09-20 19:48:15,738 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 175 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-20 19:48:15,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-09-20 19:48:15,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 397. [2024-09-20 19:48:15,830 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) [2024-09-20 19:48:15,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 554 transitions. [2024-09-20 19:48:15,833 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 554 transitions. Word has length 193 [2024-09-20 19:48:15,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 19:48:15,834 INFO L474 AbstractCegarLoop]: Abstraction has 397 states and 554 transitions. [2024-09-20 19:48:15,835 INFO L475 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) [2024-09-20 19:48:15,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:48:15,835 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 554 transitions. [2024-09-20 19:48:15,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-09-20 19:48:15,840 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 19:48:15,841 INFO L216 NwaCegarLoop]: trace histogram [63, 63, 32, 31, 31, 31, 31, 31, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 19:48:15,857 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-20 19:48:16,044 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-20 19:48:16,044 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 19:48:16,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:48:16,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1937197997, now seen corresponding path program 11 times [2024-09-20 19:48:16,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 19:48:16,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785973551] [2024-09-20 19:48:16,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 19:48:16,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 19:48:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 19:48:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-20 19:48:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,659 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:16,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,849 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:16,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:48:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,883 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:48:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,892 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:16,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:48:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-20 19:48:16,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,913 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,923 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:48:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,926 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:48:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,934 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,935 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:48:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-20 19:48:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:16,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:16,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,987 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:16,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:48:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,994 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:16,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:48:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,003 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:48:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:17,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:17,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-20 19:48:17,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:17,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:17,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,026 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:48:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:48:17,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:48:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-09-20 19:48:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,117 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:17,195 INFO L134 CoverageAnalysis]: Checked inductivity of 8772 backedges. 244 proven. 1105 refuted. 0 times theorem prover too weak. 7423 trivial. 0 not checked. [2024-09-20 19:48:17,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 19:48:17,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785973551] [2024-09-20 19:48:17,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785973551] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 19:48:17,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579169271] [2024-09-20 19:48:17,196 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-20 19:48:17,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:48:17,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 19:48:17,198 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-20 19:48:17,199 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-20 19:48:17,552 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 56 check-sat command(s) [2024-09-20 19:48:17,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 19:48:17,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 1644 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-20 19:48:17,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 19:48:17,680 INFO L134 CoverageAnalysis]: Checked inductivity of 8772 backedges. 839 proven. 501 refuted. 0 times theorem prover too weak. 7432 trivial. 0 not checked. [2024-09-20 19:48:17,680 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 19:48:19,641 INFO L134 CoverageAnalysis]: Checked inductivity of 8772 backedges. 842 proven. 533 refuted. 0 times theorem prover too weak. 7397 trivial. 0 not checked. [2024-09-20 19:48:19,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579169271] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 19:48:19,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 19:48:19,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 23] total 32 [2024-09-20 19:48:19,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184162411] [2024-09-20 19:48:19,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 19:48:19,642 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-20 19:48:19,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 19:48:19,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-20 19:48:19,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=838, Unknown=0, NotChecked=0, Total=992 [2024-09-20 19:48:19,643 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) [2024-09-20 19:48:20,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 19:48:20,301 INFO L93 Difference]: Finished difference Result 532 states and 789 transitions. [2024-09-20 19:48:20,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-20 19:48:20,301 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 [2024-09-20 19:48:20,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 19:48:20,306 INFO L225 Difference]: With dead ends: 532 [2024-09-20 19:48:20,306 INFO L226 Difference]: Without dead ends: 426 [2024-09-20 19:48:20,307 INFO L433 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 [2024-09-20 19:48:20,308 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 58 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2024-09-20 19:48:20,308 INFO L435 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] [2024-09-20 19:48:20,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-09-20 19:48:20,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 397. [2024-09-20 19:48:20,443 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) [2024-09-20 19:48:20,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 540 transitions. [2024-09-20 19:48:20,446 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 540 transitions. Word has length 347 [2024-09-20 19:48:20,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 19:48:20,447 INFO L474 AbstractCegarLoop]: Abstraction has 397 states and 540 transitions. [2024-09-20 19:48:20,447 INFO L475 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) [2024-09-20 19:48:20,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:48:20,448 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 540 transitions. [2024-09-20 19:48:20,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-09-20 19:48:20,453 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 19:48:20,453 INFO L216 NwaCegarLoop]: trace histogram [63, 63, 32, 31, 31, 31, 31, 31, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 19:48:20,471 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-20 19:48:20,653 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-20 19:48:20,654 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 19:48:20,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:48:20,654 INFO L85 PathProgramCache]: Analyzing trace with hash -910163207, now seen corresponding path program 12 times [2024-09-20 19:48:20,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 19:48:20,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286136493] [2024-09-20 19:48:20,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 19:48:20,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 19:48:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:22,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 19:48:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:22,934 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-20 19:48:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:24,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:24,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,209 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,306 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,332 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,337 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:48:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,366 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:48:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:48:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,490 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,496 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-20 19:48:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:48:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,718 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:25,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,722 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:25,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:48:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,772 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:48:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:25,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:25,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-20 19:48:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:26,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:26,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:48:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:26,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:48:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:26,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:48:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-20 19:48:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,662 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:48:26,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:26,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:48:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,765 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,769 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:48:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:48:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-09-20 19:48:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:26,967 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:48:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:48:27,009 INFO L134 CoverageAnalysis]: Checked inductivity of 8794 backedges. 96 proven. 2942 refuted. 0 times theorem prover too weak. 5756 trivial. 0 not checked. [2024-09-20 19:48:27,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 19:48:27,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286136493] [2024-09-20 19:48:27,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286136493] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 19:48:27,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676102126] [2024-09-20 19:48:27,010 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-20 19:48:27,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:48:27,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 19:48:27,011 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-20 19:48:27,012 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-20 19:48:27,365 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 56 check-sat command(s) [2024-09-20 19:48:27,366 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 19:48:27,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 1658 conjuncts, 339 conjuncts are in the unsatisfiable core [2024-09-20 19:48:27,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 19:48:28,045 INFO L134 CoverageAnalysis]: Checked inductivity of 8794 backedges. 0 proven. 2940 refuted. 0 times theorem prover too weak. 5854 trivial. 0 not checked. [2024-09-20 19:48:28,046 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 19:48:35,485 INFO L134 CoverageAnalysis]: Checked inductivity of 8794 backedges. 0 proven. 8644 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-09-20 19:48:35,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676102126] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 19:48:35,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 19:48:35,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 25, 108] total 142 [2024-09-20 19:48:35,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446748431] [2024-09-20 19:48:35,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 19:48:35,486 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 142 states [2024-09-20 19:48:35,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 19:48:35,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2024-09-20 19:48:35,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=514, Invalid=19508, Unknown=0, NotChecked=0, Total=20022 [2024-09-20 19:48:35,490 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) [2024-09-20 19:50:50,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 19:50:50,656 INFO L93 Difference]: Finished difference Result 1260 states and 1961 transitions. [2024-09-20 19:50:50,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 396 states. [2024-09-20 19:50:50,657 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 [2024-09-20 19:50:50,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 19:50:50,669 INFO L225 Difference]: With dead ends: 1260 [2024-09-20 19:50:50,669 INFO L226 Difference]: Without dead ends: 1256 [2024-09-20 19:50:50,685 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1336 GetRequests, 814 SyntacticMatches, 0 SemanticMatches, 522 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86864 ImplicationChecksByTransitivity, 130.3s TimeCoverageRelationStatistics Valid=37171, Invalid=236881, Unknown=0, NotChecked=0, Total=274052 [2024-09-20 19:50:50,685 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 6735 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 7663 mSolverCounterSat, 16546 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6735 SdHoareTripleChecker+Valid, 2253 SdHoareTripleChecker+Invalid, 24209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16546 IncrementalHoareTripleChecker+Valid, 7663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-09-20 19:50:50,686 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6735 Valid, 2253 Invalid, 24209 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16546 Valid, 7663 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-09-20 19:50:50,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2024-09-20 19:50:50,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 1085. [2024-09-20 19:50:50,990 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) [2024-09-20 19:50:50,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 1581 transitions. [2024-09-20 19:50:50,998 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 1581 transitions. Word has length 353 [2024-09-20 19:50:50,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 19:50:50,999 INFO L474 AbstractCegarLoop]: Abstraction has 1085 states and 1581 transitions. [2024-09-20 19:50:51,000 INFO L475 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) [2024-09-20 19:50:51,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:50:51,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1581 transitions. [2024-09-20 19:50:51,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2024-09-20 19:50:51,008 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 19:50:51,008 INFO L216 NwaCegarLoop]: trace histogram [63, 63, 32, 31, 31, 31, 31, 31, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 19:50:51,028 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-20 19:50:51,208 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-20 19:50:51,209 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 19:50:51,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:50:51,209 INFO L85 PathProgramCache]: Analyzing trace with hash -870344211, now seen corresponding path program 13 times [2024-09-20 19:50:51,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 19:50:51,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418597385] [2024-09-20 19:50:51,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 19:50:51,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 19:50:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 19:50:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-20 19:50:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:51,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,871 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:50:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,875 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,876 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-20 19:50:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,889 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:50:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-20 19:50:51,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:51,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:50:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,998 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:51,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:52,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:52,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:52,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,003 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-20 19:50:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:52,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,012 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,013 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,014 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,016 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:50:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,019 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:52,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,021 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:52,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:52,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,026 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-09-20 19:50:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,057 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,083 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,099 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,130 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,152 INFO L134 CoverageAnalysis]: Checked inductivity of 8822 backedges. 244 proven. 1132 refuted. 0 times theorem prover too weak. 7446 trivial. 0 not checked. [2024-09-20 19:50:52,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 19:50:52,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418597385] [2024-09-20 19:50:52,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418597385] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 19:50:52,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346522658] [2024-09-20 19:50:52,152 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-20 19:50:52,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:50:52,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 19:50:52,156 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-20 19:50:52,157 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-20 19:50:52,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:52,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 1672 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-20 19:50:52,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 19:50:52,569 INFO L134 CoverageAnalysis]: Checked inductivity of 8822 backedges. 254 proven. 1112 refuted. 0 times theorem prover too weak. 7456 trivial. 0 not checked. [2024-09-20 19:50:52,569 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 19:50:54,762 INFO L134 CoverageAnalysis]: Checked inductivity of 8822 backedges. 254 proven. 1162 refuted. 0 times theorem prover too weak. 7406 trivial. 0 not checked. [2024-09-20 19:50:54,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346522658] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 19:50:54,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 19:50:54,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17, 27] total 36 [2024-09-20 19:50:54,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562420596] [2024-09-20 19:50:54,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 19:50:54,764 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-20 19:50:54,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 19:50:54,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-20 19:50:54,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1068, Unknown=0, NotChecked=0, Total=1260 [2024-09-20 19:50:54,765 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) [2024-09-20 19:50:55,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 19:50:55,831 INFO L93 Difference]: Finished difference Result 1655 states and 2599 transitions. [2024-09-20 19:50:55,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-20 19:50:55,832 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 [2024-09-20 19:50:55,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 19:50:55,842 INFO L225 Difference]: With dead ends: 1655 [2024-09-20 19:50:55,842 INFO L226 Difference]: Without dead ends: 1183 [2024-09-20 19:50:55,846 INFO L433 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 [2024-09-20 19:50:55,846 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 64 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-20 19:50:55,847 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 212 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-20 19:50:55,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2024-09-20 19:50:56,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 980. [2024-09-20 19:50:56,097 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) [2024-09-20 19:50:56,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1358 transitions. [2024-09-20 19:50:56,105 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1358 transitions. Word has length 359 [2024-09-20 19:50:56,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 19:50:56,106 INFO L474 AbstractCegarLoop]: Abstraction has 980 states and 1358 transitions. [2024-09-20 19:50:56,106 INFO L475 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) [2024-09-20 19:50:56,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:50:56,107 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1358 transitions. [2024-09-20 19:50:56,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2024-09-20 19:50:56,114 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 19:50:56,114 INFO L216 NwaCegarLoop]: trace histogram [127, 127, 64, 63, 63, 63, 63, 63, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 19:50:56,136 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-20 19:50:56,315 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-20 19:50:56,315 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 19:50:56,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:50:56,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1634968839, now seen corresponding path program 14 times [2024-09-20 19:50:56,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 19:50:56,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901145070] [2024-09-20 19:50:56,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 19:50:56,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 19:50:56,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,118 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 19:50:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,120 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-20 19:50:57,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,889 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,892 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:50:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-20 19:50:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,915 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,918 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,923 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:50:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,929 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,931 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,934 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-20 19:50:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,954 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,967 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,970 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,971 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:50:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,974 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,975 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:57,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-20 19:50:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,050 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,056 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,057 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:50:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,062 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,065 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,066 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2024-09-20 19:50:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,112 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,128 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,141 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:58,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,144 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:50:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:58,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,153 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,153 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-20 19:50:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,159 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,167 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,169 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:50:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,171 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,174 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,175 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,179 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,180 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-20 19:50:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,209 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,215 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,216 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,217 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,219 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,220 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:50:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:58,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:58,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,230 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-20 19:50:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,236 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,239 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,241 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,242 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:58,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,244 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,245 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:58,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:50:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,249 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,251 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,253 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:50:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,256 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:50:58,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,258 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 641 [2024-09-20 19:50:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,284 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,320 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:50:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:50:58,356 INFO L134 CoverageAnalysis]: Checked inductivity of 35962 backedges. 525 proven. 2772 refuted. 0 times theorem prover too weak. 32665 trivial. 0 not checked. [2024-09-20 19:50:58,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 19:50:58,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901145070] [2024-09-20 19:50:58,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901145070] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 19:50:58,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130129962] [2024-09-20 19:50:58,357 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-20 19:50:58,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:50:58,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 19:50:58,358 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-20 19:50:58,360 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-20 19:50:58,830 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-20 19:50:58,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 19:50:58,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 3226 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-20 19:50:58,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 19:50:58,971 INFO L134 CoverageAnalysis]: Checked inductivity of 35962 backedges. 537 proven. 2750 refuted. 0 times theorem prover too weak. 32675 trivial. 0 not checked. [2024-09-20 19:50:58,971 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 19:51:02,372 INFO L134 CoverageAnalysis]: Checked inductivity of 35962 backedges. 537 proven. 2802 refuted. 0 times theorem prover too weak. 32623 trivial. 0 not checked. [2024-09-20 19:51:02,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130129962] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 19:51:02,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 19:51:02,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17, 27] total 36 [2024-09-20 19:51:02,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386390692] [2024-09-20 19:51:02,373 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 19:51:02,374 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-20 19:51:02,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 19:51:02,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-20 19:51:02,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1069, Unknown=0, NotChecked=0, Total=1260 [2024-09-20 19:51:02,375 INFO L87 Difference]: Start difference. First operand 980 states and 1358 transitions. Second operand has 36 states, 35 states have (on average 1.9428571428571428) internal successors, (68), 34 states have internal predecessors, (68), 22 states have call successors, (36), 2 states have call predecessors, (36), 15 states have return successors, (41), 13 states have call predecessors, (41), 22 states have call successors, (41) [2024-09-20 19:51:03,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 19:51:03,422 INFO L93 Difference]: Finished difference Result 1207 states and 1760 transitions. [2024-09-20 19:51:03,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-09-20 19:51:03,423 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 1.9428571428571428) internal successors, (68), 34 states have internal predecessors, (68), 22 states have call successors, (36), 2 states have call predecessors, (36), 15 states have return successors, (41), 13 states have call predecessors, (41), 22 states have call successors, (41) Word has length 673 [2024-09-20 19:51:03,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 19:51:03,432 INFO L225 Difference]: With dead ends: 1207 [2024-09-20 19:51:03,432 INFO L226 Difference]: Without dead ends: 1041 [2024-09-20 19:51:03,435 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1652 GetRequests, 1579 SyntacticMatches, 13 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 838 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=647, Invalid=3135, Unknown=0, NotChecked=0, Total=3782 [2024-09-20 19:51:03,435 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 67 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-20 19:51:03,436 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 237 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-20 19:51:03,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2024-09-20 19:51:03,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 980. [2024-09-20 19:51:03,740 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) [2024-09-20 19:51:03,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1328 transitions. [2024-09-20 19:51:03,748 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1328 transitions. Word has length 673 [2024-09-20 19:51:03,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 19:51:03,749 INFO L474 AbstractCegarLoop]: Abstraction has 980 states and 1328 transitions. [2024-09-20 19:51:03,749 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 1.9428571428571428) internal successors, (68), 34 states have internal predecessors, (68), 22 states have call successors, (36), 2 states have call predecessors, (36), 15 states have return successors, (41), 13 states have call predecessors, (41), 22 states have call successors, (41) [2024-09-20 19:51:03,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:51:03,749 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1328 transitions. [2024-09-20 19:51:03,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 680 [2024-09-20 19:51:03,756 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 19:51:03,756 INFO L216 NwaCegarLoop]: trace histogram [127, 127, 64, 63, 63, 63, 63, 63, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 19:51:03,778 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-20 19:51:03,957 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 19:51:03,957 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 19:51:03,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 19:51:03,957 INFO L85 PathProgramCache]: Analyzing trace with hash -62262803, now seen corresponding path program 15 times [2024-09-20 19:51:03,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 19:51:03,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26958864] [2024-09-20 19:51:03,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 19:51:03,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 19:51:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:12,265 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 19:51:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:12,267 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-09-20 19:51:12,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:18,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:51:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:19,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:51:19,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:51:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:51:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:51:20,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:51:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:51:20,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:51:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,570 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:51:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:51:20,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,578 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:51:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:51:20,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:51:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:51:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:51:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:51:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:51:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-09-20 19:51:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:51:20,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,778 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:51:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:51:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:51:20,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:51:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:51:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:51:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-20 19:51:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:51:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:51:20,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,883 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:51:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,886 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 19:51:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-20 19:51:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 19:51:20,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 19:51:20,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-20 19:51:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat