./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.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 --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.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 50f60fa428d099767eedeaaecff58f84e68d960030ff43c7eae2dbdfbde6f992 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 16:30:07,769 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 16:30:07,844 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 16:30:07,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 16:30:07,850 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 16:30:07,876 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 16:30:07,877 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 16:30:07,879 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 16:30:07,879 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 16:30:07,880 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 16:30:07,881 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 16:30:07,881 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 16:30:07,881 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 16:30:07,882 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 16:30:07,883 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 16:30:07,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 16:30:07,883 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 16:30:07,883 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 16:30:07,884 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 16:30:07,884 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 16:30:07,884 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 16:30:07,885 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 16:30:07,885 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 16:30:07,885 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 16:30:07,886 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 16:30:07,886 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 16:30:07,886 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 16:30:07,886 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 16:30:07,887 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 16:30:07,887 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 16:30:07,887 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 16:30:07,887 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 16:30:07,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 16:30:07,888 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 16:30:07,888 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 16:30:07,889 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 16:30:07,889 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 16:30:07,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 16:30:07,889 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 16:30:07,890 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 16:30:07,890 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 16:30:07,892 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 16:30:07,892 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50f60fa428d099767eedeaaecff58f84e68d960030ff43c7eae2dbdfbde6f992 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 [2024-09-12 16:30:08,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 16:30:08,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 16:30:08,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 16:30:08,208 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 16:30:08,209 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 16:30:08,210 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-09-12 16:30:09,792 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 16:30:09,975 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 16:30:09,976 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-09-12 16:30:09,985 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/1000adbfa/b98b309b210148279b2cd8b2bad04458/FLAGf552c1cb0 [2024-09-12 16:30:10,001 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/1000adbfa/b98b309b210148279b2cd8b2bad04458 [2024-09-12 16:30:10,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 16:30:10,006 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 16:30:10,008 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 16:30:10,008 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 16:30:10,013 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 16:30:10,017 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 04:30:10" (1/1) ... [2024-09-12 16:30:10,018 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41e043d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:30:10, skipping insertion in model container [2024-09-12 16:30:10,018 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 04:30:10" (1/1) ... [2024-09-12 16:30:10,037 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 16:30:10,227 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c[947,960] [2024-09-12 16:30:10,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 16:30:10,245 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 16:30:10,260 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c[947,960] [2024-09-12 16:30:10,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 16:30:10,282 INFO L204 MainTranslator]: Completed translation [2024-09-12 16:30:10,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:30:10 WrapperNode [2024-09-12 16:30:10,282 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 16:30:10,283 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 16:30:10,283 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 16:30:10,284 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 16:30:10,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:30:10" (1/1) ... [2024-09-12 16:30:10,296 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:30:10" (1/1) ... [2024-09-12 16:30:10,303 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 16:30:10,303 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 16:30:10,304 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 16:30:10,304 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 16:30:10,304 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 16:30:10,313 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:30:10" (1/1) ... [2024-09-12 16:30:10,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:30:10" (1/1) ... [2024-09-12 16:30:10,319 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:30:10" (1/1) ... [2024-09-12 16:30:10,337 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 16:30:10,337 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:30:10" (1/1) ... [2024-09-12 16:30:10,337 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:30:10" (1/1) ... [2024-09-12 16:30:10,340 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:30:10" (1/1) ... [2024-09-12 16:30:10,342 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:30:10" (1/1) ... [2024-09-12 16:30:10,346 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:30:10" (1/1) ... [2024-09-12 16:30:10,347 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:30:10" (1/1) ... [2024-09-12 16:30:10,348 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 16:30:10,349 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 16:30:10,349 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 16:30:10,349 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 16:30:10,350 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:30:10" (1/1) ... [2024-09-12 16:30:10,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 16:30:10,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 16:30:10,383 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 16:30:10,389 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 16:30:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 16:30:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 16:30:10,430 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 16:30:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 16:30:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-09-12 16:30:10,431 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-09-12 16:30:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-09-12 16:30:10,432 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-09-12 16:30:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 16:30:10,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 16:30:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 16:30:10,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 16:30:10,499 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 16:30:10,503 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 16:30:10,668 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-09-12 16:30:10,672 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 16:30:10,703 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 16:30:10,704 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-12 16:30:10,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 04:30:10 BoogieIcfgContainer [2024-09-12 16:30:10,705 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 16:30:10,708 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 16:30:10,708 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 16:30:10,712 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 16:30:10,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 04:30:10" (1/3) ... [2024-09-12 16:30:10,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694dd7e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 04:30:10, skipping insertion in model container [2024-09-12 16:30:10,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:30:10" (2/3) ... [2024-09-12 16:30:10,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694dd7e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 04:30:10, skipping insertion in model container [2024-09-12 16:30:10,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 04:30:10" (3/3) ... [2024-09-12 16:30:10,715 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2024-09-12 16:30:10,728 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 16:30:10,729 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-12 16:30:10,784 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 16:30:10,790 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;@4dcfc00e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 16:30:10,790 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-12 16:30:10,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 20 states have internal predecessors, (25), 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) [2024-09-12 16:30:10,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 16:30:10,800 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 16:30:10,801 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 16:30:10,801 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 16:30:10,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:10,806 INFO L85 PathProgramCache]: Analyzing trace with hash -685851838, now seen corresponding path program 1 times [2024-09-12 16:30:10,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 16:30:10,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437839396] [2024-09-12 16:30:10,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:10,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 16:30:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:11,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 16:30:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:11,018 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 16:30:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:11,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 16:30:11,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 16:30:11,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437839396] [2024-09-12 16:30:11,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437839396] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 16:30:11,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 16:30:11,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 16:30:11,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9759639] [2024-09-12 16:30:11,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 16:30:11,093 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 16:30:11,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 16:30:11,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 16:30:11,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 16:30:11,134 INFO L87 Difference]: Start difference. First operand has 32 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 20 states have internal predecessors, (25), 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 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 16:30:11,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 16:30:11,230 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2024-09-12 16:30:11,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 16:30:11,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2024-09-12 16:30:11,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 16:30:11,240 INFO L225 Difference]: With dead ends: 44 [2024-09-12 16:30:11,240 INFO L226 Difference]: Without dead ends: 32 [2024-09-12 16:30:11,243 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 16:30:11,248 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 10 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 16:30:11,250 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 103 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 16:30:11,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-09-12 16:30:11,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2024-09-12 16:30:11,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 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) [2024-09-12 16:30:11,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2024-09-12 16:30:11,294 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 13 [2024-09-12 16:30:11,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 16:30:11,295 INFO L474 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2024-09-12 16:30:11,296 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 16:30:11,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:11,298 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2024-09-12 16:30:11,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-09-12 16:30:11,300 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 16:30:11,300 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 16:30:11,300 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 16:30:11,300 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 16:30:11,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:11,302 INFO L85 PathProgramCache]: Analyzing trace with hash 924954813, now seen corresponding path program 1 times [2024-09-12 16:30:11,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 16:30:11,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990377754] [2024-09-12 16:30:11,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:11,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 16:30:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:11,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 16:30:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:11,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 16:30:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:11,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 16:30:11,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 16:30:11,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990377754] [2024-09-12 16:30:11,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990377754] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 16:30:11,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 16:30:11,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 16:30:11,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325365505] [2024-09-12 16:30:11,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 16:30:11,439 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 16:30:11,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 16:30:11,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 16:30:11,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 16:30:11,441 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 16:30:11,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 16:30:11,515 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2024-09-12 16:30:11,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 16:30:11,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2024-09-12 16:30:11,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 16:30:11,517 INFO L225 Difference]: With dead ends: 36 [2024-09-12 16:30:11,517 INFO L226 Difference]: Without dead ends: 32 [2024-09-12 16:30:11,518 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 16:30:11,519 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 7 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 16:30:11,519 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 88 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 16:30:11,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-09-12 16:30:11,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2024-09-12 16:30:11,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 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) [2024-09-12 16:30:11,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2024-09-12 16:30:11,533 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 14 [2024-09-12 16:30:11,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 16:30:11,534 INFO L474 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2024-09-12 16:30:11,534 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 16:30:11,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:11,535 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2024-09-12 16:30:11,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-09-12 16:30:11,536 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 16:30:11,536 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 16:30:11,537 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 16:30:11,537 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 16:30:11,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:11,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1782416332, now seen corresponding path program 1 times [2024-09-12 16:30:11,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 16:30:11,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260817098] [2024-09-12 16:30:11,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:11,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 16:30:11,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:11,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 16:30:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:11,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 16:30:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:11,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:11,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-09-12 16:30:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:11,752 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 16:30:11,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 16:30:11,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260817098] [2024-09-12 16:30:11,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260817098] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 16:30:11,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235058472] [2024-09-12 16:30:11,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:11,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:11,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 16:30:11,756 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 16:30:11,758 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 16:30:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:11,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 16:30:11,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 16:30:11,925 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 16:30:11,926 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 16:30:12,112 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 16:30:12,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235058472] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 16:30:12,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 16:30:12,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 13 [2024-09-12 16:30:12,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123905248] [2024-09-12 16:30:12,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 16:30:12,113 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 16:30:12,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 16:30:12,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 16:30:12,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-09-12 16:30:12,115 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 13 states, 10 states have (on average 3.2) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 8 states have call successors, (9) [2024-09-12 16:30:12,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 16:30:12,268 INFO L93 Difference]: Finished difference Result 58 states and 78 transitions. [2024-09-12 16:30:12,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 16:30:12,269 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 3.2) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 8 states have call successors, (9) Word has length 26 [2024-09-12 16:30:12,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 16:30:12,270 INFO L225 Difference]: With dead ends: 58 [2024-09-12 16:30:12,271 INFO L226 Difference]: Without dead ends: 34 [2024-09-12 16:30:12,272 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 53 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-09-12 16:30:12,274 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 25 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 16:30:12,274 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 160 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 16:30:12,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-09-12 16:30:12,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2024-09-12 16:30:12,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 7 states have call successors, (7), 4 states have call predecessors, (7), 5 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-09-12 16:30:12,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2024-09-12 16:30:12,291 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 26 [2024-09-12 16:30:12,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 16:30:12,291 INFO L474 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2024-09-12 16:30:12,291 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 3.2) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 8 states have call successors, (9) [2024-09-12 16:30:12,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:12,292 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2024-09-12 16:30:12,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-12 16:30:12,293 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 16:30:12,293 INFO L216 NwaCegarLoop]: trace histogram [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] [2024-09-12 16:30:12,311 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-12 16:30:12,494 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:12,494 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 16:30:12,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:12,495 INFO L85 PathProgramCache]: Analyzing trace with hash -836643613, now seen corresponding path program 1 times [2024-09-12 16:30:12,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 16:30:12,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150959834] [2024-09-12 16:30:12,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:12,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 16:30:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:12,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 16:30:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:12,544 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 16:30:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:12,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:12,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:12,639 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 16:30:12,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 16:30:12,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150959834] [2024-09-12 16:30:12,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150959834] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 16:30:12,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688894937] [2024-09-12 16:30:12,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:12,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:12,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 16:30:12,650 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 16:30:12,655 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 16:30:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:12,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 16:30:12,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 16:30:12,744 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 16:30:12,745 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 16:30:12,951 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 16:30:12,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688894937] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 16:30:12,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 16:30:12,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13 [2024-09-12 16:30:12,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491059661] [2024-09-12 16:30:12,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 16:30:12,953 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 16:30:12,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 16:30:12,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 16:30:12,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-09-12 16:30:12,954 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 16:30:13,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 16:30:13,156 INFO L93 Difference]: Finished difference Result 56 states and 77 transitions. [2024-09-12 16:30:13,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 16:30:13,157 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Word has length 27 [2024-09-12 16:30:13,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 16:30:13,159 INFO L225 Difference]: With dead ends: 56 [2024-09-12 16:30:13,160 INFO L226 Difference]: Without dead ends: 52 [2024-09-12 16:30:13,160 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-09-12 16:30:13,161 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 32 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 16:30:13,161 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 182 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 16:30:13,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-09-12 16:30:13,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2024-09-12 16:30:13,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 33 states have internal predecessors, (39), 11 states have call successors, (11), 6 states have call predecessors, (11), 7 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2024-09-12 16:30:13,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 68 transitions. [2024-09-12 16:30:13,173 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 68 transitions. Word has length 27 [2024-09-12 16:30:13,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 16:30:13,174 INFO L474 AbstractCegarLoop]: Abstraction has 50 states and 68 transitions. [2024-09-12 16:30:13,174 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 16:30:13,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:13,175 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 68 transitions. [2024-09-12 16:30:13,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 16:30:13,176 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 16:30:13,176 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, 1, 1, 1, 1] [2024-09-12 16:30:13,193 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 16:30:13,380 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:13,381 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 16:30:13,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:13,381 INFO L85 PathProgramCache]: Analyzing trace with hash -925704228, now seen corresponding path program 1 times [2024-09-12 16:30:13,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 16:30:13,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309448324] [2024-09-12 16:30:13,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:13,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 16:30:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:13,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 16:30:13,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:13,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 16:30:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:13,438 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:13,471 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:13,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-09-12 16:30:13,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:13,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 16:30:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:13,512 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 16:30:13,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 16:30:13,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309448324] [2024-09-12 16:30:13,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309448324] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 16:30:13,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635720988] [2024-09-12 16:30:13,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:13,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:13,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 16:30:13,516 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 16:30:13,517 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 16:30:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:13,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 16:30:13,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 16:30:13,644 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-12 16:30:13,644 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 16:30:13,972 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 16:30:13,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635720988] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 16:30:13,972 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 16:30:13,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 15 [2024-09-12 16:30:13,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911393200] [2024-09-12 16:30:13,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 16:30:13,973 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 16:30:13,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 16:30:13,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 16:30:13,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-09-12 16:30:13,974 INFO L87 Difference]: Start difference. First operand 50 states and 68 transitions. Second operand has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 11 states have call successors, (15), 1 states have call predecessors, (15), 5 states have return successors, (14), 4 states have call predecessors, (14), 11 states have call successors, (14) [2024-09-12 16:30:14,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 16:30:14,211 INFO L93 Difference]: Finished difference Result 112 states and 180 transitions. [2024-09-12 16:30:14,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 16:30:14,212 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 11 states have call successors, (15), 1 states have call predecessors, (15), 5 states have return successors, (14), 4 states have call predecessors, (14), 11 states have call successors, (14) Word has length 39 [2024-09-12 16:30:14,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 16:30:14,216 INFO L225 Difference]: With dead ends: 112 [2024-09-12 16:30:14,219 INFO L226 Difference]: Without dead ends: 68 [2024-09-12 16:30:14,220 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 84 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2024-09-12 16:30:14,221 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 38 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 16:30:14,221 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 200 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 16:30:14,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-09-12 16:30:14,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2024-09-12 16:30:14,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 44 states have internal predecessors, (51), 14 states have call successors, (14), 7 states have call predecessors, (14), 10 states have return successors, (30), 14 states have call predecessors, (30), 13 states have call successors, (30) [2024-09-12 16:30:14,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 95 transitions. [2024-09-12 16:30:14,246 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 95 transitions. Word has length 39 [2024-09-12 16:30:14,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 16:30:14,247 INFO L474 AbstractCegarLoop]: Abstraction has 66 states and 95 transitions. [2024-09-12 16:30:14,247 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 11 states have call successors, (15), 1 states have call predecessors, (15), 5 states have return successors, (14), 4 states have call predecessors, (14), 11 states have call successors, (14) [2024-09-12 16:30:14,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:14,248 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 95 transitions. [2024-09-12 16:30:14,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 16:30:14,251 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 16:30:14,251 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, 1, 1, 1, 1, 1] [2024-09-12 16:30:14,269 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-12 16:30:14,452 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:14,453 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 16:30:14,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:14,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1261961157, now seen corresponding path program 1 times [2024-09-12 16:30:14,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 16:30:14,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163991499] [2024-09-12 16:30:14,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:14,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 16:30:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:14,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 16:30:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:14,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 16:30:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:14,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:14,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:14,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:14,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:14,653 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-09-12 16:30:14,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 16:30:14,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163991499] [2024-09-12 16:30:14,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163991499] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 16:30:14,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725419123] [2024-09-12 16:30:14,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:14,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:14,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 16:30:14,657 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 16:30:14,659 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 16:30:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:14,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 16:30:14,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 16:30:14,785 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 16:30:14,785 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 16:30:15,086 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 16:30:15,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725419123] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 16:30:15,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 16:30:15,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 18 [2024-09-12 16:30:15,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301149545] [2024-09-12 16:30:15,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 16:30:15,088 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 16:30:15,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 16:30:15,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 16:30:15,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2024-09-12 16:30:15,089 INFO L87 Difference]: Start difference. First operand 66 states and 95 transitions. Second operand has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 11 states have call successors, (15), 1 states have call predecessors, (15), 7 states have return successors, (14), 7 states have call predecessors, (14), 11 states have call successors, (14) [2024-09-12 16:30:15,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 16:30:15,439 INFO L93 Difference]: Finished difference Result 182 states and 328 transitions. [2024-09-12 16:30:15,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 16:30:15,440 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 11 states have call successors, (15), 1 states have call predecessors, (15), 7 states have return successors, (14), 7 states have call predecessors, (14), 11 states have call successors, (14) Word has length 40 [2024-09-12 16:30:15,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 16:30:15,442 INFO L225 Difference]: With dead ends: 182 [2024-09-12 16:30:15,442 INFO L226 Difference]: Without dead ends: 122 [2024-09-12 16:30:15,446 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2024-09-12 16:30:15,447 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 32 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 16:30:15,447 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 343 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 16:30:15,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-09-12 16:30:15,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 103. [2024-09-12 16:30:15,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 64 states have (on average 1.21875) internal successors, (78), 67 states have internal predecessors, (78), 23 states have call successors, (23), 9 states have call predecessors, (23), 15 states have return successors, (64), 26 states have call predecessors, (64), 22 states have call successors, (64) [2024-09-12 16:30:15,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 165 transitions. [2024-09-12 16:30:15,496 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 165 transitions. Word has length 40 [2024-09-12 16:30:15,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 16:30:15,497 INFO L474 AbstractCegarLoop]: Abstraction has 103 states and 165 transitions. [2024-09-12 16:30:15,497 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 11 states have call successors, (15), 1 states have call predecessors, (15), 7 states have return successors, (14), 7 states have call predecessors, (14), 11 states have call successors, (14) [2024-09-12 16:30:15,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:15,498 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 165 transitions. [2024-09-12 16:30:15,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 16:30:15,500 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 16:30:15,504 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 16:30:15,521 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 16:30:15,705 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:15,705 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 16:30:15,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:15,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1624375296, now seen corresponding path program 1 times [2024-09-12 16:30:15,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 16:30:15,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40480364] [2024-09-12 16:30:15,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:15,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 16:30:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:15,772 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 16:30:15,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:15,774 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 16:30:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:15,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:15,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:15,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:15,889 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:15,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:15,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:15,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 16:30:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:15,910 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-09-12 16:30:15,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 16:30:15,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40480364] [2024-09-12 16:30:15,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40480364] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 16:30:15,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511598836] [2024-09-12 16:30:15,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:15,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:15,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 16:30:15,913 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 16:30:15,914 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 16:30:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:15,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 16:30:15,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 16:30:16,059 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-09-12 16:30:16,059 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 16:30:16,579 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 16:30:16,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511598836] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 16:30:16,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 16:30:16,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 11] total 20 [2024-09-12 16:30:16,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151271008] [2024-09-12 16:30:16,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 16:30:16,581 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 16:30:16,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 16:30:16,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 16:30:16,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2024-09-12 16:30:16,582 INFO L87 Difference]: Start difference. First operand 103 states and 165 transitions. Second operand has 20 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 20 states have internal predecessors, (60), 14 states have call successors, (18), 1 states have call predecessors, (18), 8 states have return successors, (19), 8 states have call predecessors, (19), 14 states have call successors, (19) [2024-09-12 16:30:16,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 16:30:16,942 INFO L93 Difference]: Finished difference Result 252 states and 489 transitions. [2024-09-12 16:30:16,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 16:30:16,942 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 20 states have internal predecessors, (60), 14 states have call successors, (18), 1 states have call predecessors, (18), 8 states have return successors, (19), 8 states have call predecessors, (19), 14 states have call successors, (19) Word has length 54 [2024-09-12 16:30:16,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 16:30:16,945 INFO L225 Difference]: With dead ends: 252 [2024-09-12 16:30:16,946 INFO L226 Difference]: Without dead ends: 155 [2024-09-12 16:30:16,947 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 118 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702 [2024-09-12 16:30:16,948 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 41 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 16:30:16,948 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 256 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 16:30:16,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-09-12 16:30:16,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 112. [2024-09-12 16:30:16,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 72 states have internal predecessors, (87), 26 states have call successors, (26), 11 states have call predecessors, (26), 14 states have return successors, (67), 28 states have call predecessors, (67), 25 states have call successors, (67) [2024-09-12 16:30:16,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 180 transitions. [2024-09-12 16:30:16,972 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 180 transitions. Word has length 54 [2024-09-12 16:30:16,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 16:30:16,972 INFO L474 AbstractCegarLoop]: Abstraction has 112 states and 180 transitions. [2024-09-12 16:30:16,973 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 20 states have internal predecessors, (60), 14 states have call successors, (18), 1 states have call predecessors, (18), 8 states have return successors, (19), 8 states have call predecessors, (19), 14 states have call successors, (19) [2024-09-12 16:30:16,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:16,973 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 180 transitions. [2024-09-12 16:30:16,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-09-12 16:30:16,976 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 16:30:16,977 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 16:30:16,993 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 16:30:17,177 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-12 16:30:17,178 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 16:30:17,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:17,178 INFO L85 PathProgramCache]: Analyzing trace with hash -805611050, now seen corresponding path program 1 times [2024-09-12 16:30:17,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 16:30:17,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636966157] [2024-09-12 16:30:17,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:17,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 16:30:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:17,266 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 16:30:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:17,268 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 16:30:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:17,339 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:17,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:17,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:17,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:17,472 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:17,476 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:17,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:17,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 16:30:17,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:17,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:17,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:17,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:17,522 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:17,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:17,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:17,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:17,527 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 44 proven. 79 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-09-12 16:30:17,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 16:30:17,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636966157] [2024-09-12 16:30:17,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636966157] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 16:30:17,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368722892] [2024-09-12 16:30:17,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:17,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:17,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 16:30:17,530 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 16:30:17,531 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 16:30:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:17,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 16:30:17,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 16:30:17,740 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 17 proven. 119 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-09-12 16:30:17,741 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 16:30:18,607 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 17 proven. 129 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-09-12 16:30:18,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368722892] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 16:30:18,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 16:30:18,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 13] total 24 [2024-09-12 16:30:18,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395453485] [2024-09-12 16:30:18,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 16:30:18,608 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 16:30:18,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 16:30:18,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 16:30:18,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2024-09-12 16:30:18,609 INFO L87 Difference]: Start difference. First operand 112 states and 180 transitions. Second operand has 24 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 24 states have internal predecessors, (76), 18 states have call successors, (25), 1 states have call predecessors, (25), 9 states have return successors, (28), 11 states have call predecessors, (28), 18 states have call successors, (28) [2024-09-12 16:30:19,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 16:30:19,098 INFO L93 Difference]: Finished difference Result 256 states and 494 transitions. [2024-09-12 16:30:19,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 16:30:19,099 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 24 states have internal predecessors, (76), 18 states have call successors, (25), 1 states have call predecessors, (25), 9 states have return successors, (28), 11 states have call predecessors, (28), 18 states have call successors, (28) Word has length 110 [2024-09-12 16:30:19,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 16:30:19,102 INFO L225 Difference]: With dead ends: 256 [2024-09-12 16:30:19,102 INFO L226 Difference]: Without dead ends: 108 [2024-09-12 16:30:19,104 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 235 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=221, Invalid=1039, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 16:30:19,105 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 59 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 16:30:19,105 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 365 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 16:30:19,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-09-12 16:30:19,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 91. [2024-09-12 16:30:19,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 59 states have (on average 1.1864406779661016) internal successors, (70), 60 states have internal predecessors, (70), 18 states have call successors, (18), 10 states have call predecessors, (18), 13 states have return successors, (39), 20 states have call predecessors, (39), 17 states have call successors, (39) [2024-09-12 16:30:19,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 127 transitions. [2024-09-12 16:30:19,135 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 127 transitions. Word has length 110 [2024-09-12 16:30:19,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 16:30:19,136 INFO L474 AbstractCegarLoop]: Abstraction has 91 states and 127 transitions. [2024-09-12 16:30:19,136 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 24 states have internal predecessors, (76), 18 states have call successors, (25), 1 states have call predecessors, (25), 9 states have return successors, (28), 11 states have call predecessors, (28), 18 states have call successors, (28) [2024-09-12 16:30:19,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:19,136 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 127 transitions. [2024-09-12 16:30:19,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-09-12 16:30:19,140 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 16:30:19,140 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 10, 9, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 16:30:19,155 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-12 16:30:19,341 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:19,342 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 16:30:19,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:19,342 INFO L85 PathProgramCache]: Analyzing trace with hash 222670340, now seen corresponding path program 1 times [2024-09-12 16:30:19,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 16:30:19,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389400199] [2024-09-12 16:30:19,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:19,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 16:30:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 16:30:19,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 16:30:19,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:19,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,671 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:19,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,717 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,721 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:19,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:19,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,744 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 16:30:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,751 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,755 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 16:30:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:19,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:19,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:19,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,784 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,792 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 71 proven. 160 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2024-09-12 16:30:19,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 16:30:19,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389400199] [2024-09-12 16:30:19,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389400199] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 16:30:19,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710195211] [2024-09-12 16:30:19,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:19,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:19,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 16:30:19,794 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 16:30:19,795 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 16:30:19,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:19,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 16:30:19,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 16:30:20,027 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 34 proven. 242 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2024-09-12 16:30:20,027 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 16:30:21,116 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 34 proven. 258 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2024-09-12 16:30:21,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710195211] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 16:30:21,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 16:30:21,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 15] total 26 [2024-09-12 16:30:21,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198374460] [2024-09-12 16:30:21,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 16:30:21,117 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-12 16:30:21,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 16:30:21,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-12 16:30:21,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2024-09-12 16:30:21,118 INFO L87 Difference]: Start difference. First operand 91 states and 127 transitions. Second operand has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 20 states have call successors, (28), 1 states have call predecessors, (28), 10 states have return successors, (33), 12 states have call predecessors, (33), 20 states have call successors, (33) [2024-09-12 16:30:21,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 16:30:21,649 INFO L93 Difference]: Finished difference Result 229 states and 395 transitions. [2024-09-12 16:30:21,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 16:30:21,649 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 20 states have call successors, (28), 1 states have call predecessors, (28), 10 states have return successors, (33), 12 states have call predecessors, (33), 20 states have call successors, (33) Word has length 164 [2024-09-12 16:30:21,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 16:30:21,652 INFO L225 Difference]: With dead ends: 229 [2024-09-12 16:30:21,653 INFO L226 Difference]: Without dead ends: 131 [2024-09-12 16:30:21,655 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 357 SyntacticMatches, 6 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=275, Invalid=1285, Unknown=0, NotChecked=0, Total=1560 [2024-09-12 16:30:21,656 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 85 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 16:30:21,657 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 437 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 16:30:21,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-09-12 16:30:21,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 111. [2024-09-12 16:30:21,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 73 states have (on average 1.2191780821917808) internal successors, (89), 74 states have internal predecessors, (89), 22 states have call successors, (22), 13 states have call predecessors, (22), 15 states have return successors, (52), 23 states have call predecessors, (52), 21 states have call successors, (52) [2024-09-12 16:30:21,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 163 transitions. [2024-09-12 16:30:21,682 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 163 transitions. Word has length 164 [2024-09-12 16:30:21,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 16:30:21,682 INFO L474 AbstractCegarLoop]: Abstraction has 111 states and 163 transitions. [2024-09-12 16:30:21,682 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 20 states have call successors, (28), 1 states have call predecessors, (28), 10 states have return successors, (33), 12 states have call predecessors, (33), 20 states have call successors, (33) [2024-09-12 16:30:21,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:21,683 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 163 transitions. [2024-09-12 16:30:21,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-09-12 16:30:21,685 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 16:30:21,686 INFO L216 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 13, 13, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 16:30:21,703 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 16:30:21,886 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:21,887 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 16:30:21,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:21,887 INFO L85 PathProgramCache]: Analyzing trace with hash 501832710, now seen corresponding path program 2 times [2024-09-12 16:30:21,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 16:30:21,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861317038] [2024-09-12 16:30:21,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:21,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 16:30:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,053 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 16:30:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,056 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 16:30:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,291 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,343 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,384 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,438 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:22,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:22,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 16:30:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,522 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-09-12 16:30:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,532 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,537 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,544 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:22,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:22,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 167 proven. 260 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2024-09-12 16:30:22,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 16:30:22,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861317038] [2024-09-12 16:30:22,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861317038] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 16:30:22,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452942741] [2024-09-12 16:30:22,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 16:30:22,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:22,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 16:30:22,559 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 16:30:22,560 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 16:30:22,691 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 16:30:22,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 16:30:22,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 16:30:22,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 16:30:22,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 77 proven. 418 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2024-09-12 16:30:22,820 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 16:30:24,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 77 proven. 442 refuted. 0 times theorem prover too weak. 885 trivial. 0 not checked. [2024-09-12 16:30:24,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452942741] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 16:30:24,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 16:30:24,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 17] total 27 [2024-09-12 16:30:24,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345923469] [2024-09-12 16:30:24,552 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 16:30:24,553 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-12 16:30:24,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 16:30:24,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-12 16:30:24,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=586, Unknown=0, NotChecked=0, Total=702 [2024-09-12 16:30:24,554 INFO L87 Difference]: Start difference. First operand 111 states and 163 transitions. Second operand has 27 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 27 states have internal predecessors, (90), 21 states have call successors, (29), 1 states have call predecessors, (29), 11 states have return successors, (37), 14 states have call predecessors, (37), 21 states have call successors, (37) [2024-09-12 16:30:25,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 16:30:25,045 INFO L93 Difference]: Finished difference Result 254 states and 432 transitions. [2024-09-12 16:30:25,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-12 16:30:25,046 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 27 states have internal predecessors, (90), 21 states have call successors, (29), 1 states have call predecessors, (29), 11 states have return successors, (37), 14 states have call predecessors, (37), 21 states have call successors, (37) Word has length 231 [2024-09-12 16:30:25,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 16:30:25,050 INFO L225 Difference]: With dead ends: 254 [2024-09-12 16:30:25,050 INFO L226 Difference]: Without dead ends: 156 [2024-09-12 16:30:25,053 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 510 SyntacticMatches, 8 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=339, Invalid=1553, Unknown=0, NotChecked=0, Total=1892 [2024-09-12 16:30:25,053 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 64 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 16:30:25,054 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 336 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 16:30:25,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-09-12 16:30:25,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 143. [2024-09-12 16:30:25,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 97 states have (on average 1.2474226804123711) internal successors, (121), 96 states have internal predecessors, (121), 28 states have call successors, (28), 19 states have call predecessors, (28), 17 states have return successors, (72), 27 states have call predecessors, (72), 27 states have call successors, (72) [2024-09-12 16:30:25,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 221 transitions. [2024-09-12 16:30:25,080 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 221 transitions. Word has length 231 [2024-09-12 16:30:25,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 16:30:25,081 INFO L474 AbstractCegarLoop]: Abstraction has 143 states and 221 transitions. [2024-09-12 16:30:25,081 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.4615384615384617) internal successors, (90), 27 states have internal predecessors, (90), 21 states have call successors, (29), 1 states have call predecessors, (29), 11 states have return successors, (37), 14 states have call predecessors, (37), 21 states have call successors, (37) [2024-09-12 16:30:25,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:25,081 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 221 transitions. [2024-09-12 16:30:25,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-09-12 16:30:25,090 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 16:30:25,091 INFO L216 NwaCegarLoop]: trace histogram [40, 40, 37, 37, 31, 30, 20, 20, 20, 20, 20, 20, 20, 18, 18, 18, 18, 18, 18, 18, 12, 11, 10, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 16:30:25,109 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-12 16:30:25,294 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:25,295 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 16:30:25,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:25,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1090979059, now seen corresponding path program 3 times [2024-09-12 16:30:25,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 16:30:25,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909145389] [2024-09-12 16:30:25,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:25,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 16:30:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:25,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 16:30:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:25,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 16:30:25,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,329 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,519 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:26,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,522 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,526 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,573 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:26,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 16:30:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:26,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,664 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,665 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 16:30:26,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,709 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-09-12 16:30:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,794 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:26,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 16:30:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,843 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:26,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:26,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 16:30:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:26,870 INFO L134 CoverageAnalysis]: Checked inductivity of 8056 backedges. 302 proven. 934 refuted. 0 times theorem prover too weak. 6820 trivial. 0 not checked. [2024-09-12 16:30:26,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 16:30:26,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909145389] [2024-09-12 16:30:26,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909145389] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 16:30:26,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697420647] [2024-09-12 16:30:26,870 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 16:30:26,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:26,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 16:30:26,872 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 16:30:26,875 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 16:30:27,020 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-09-12 16:30:27,021 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 16:30:27,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 16:30:27,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 16:30:27,138 INFO L134 CoverageAnalysis]: Checked inductivity of 8056 backedges. 2122 proven. 34 refuted. 0 times theorem prover too weak. 5900 trivial. 0 not checked. [2024-09-12 16:30:27,138 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 16:30:29,011 INFO L134 CoverageAnalysis]: Checked inductivity of 8056 backedges. 1190 proven. 112 refuted. 0 times theorem prover too weak. 6754 trivial. 0 not checked. [2024-09-12 16:30:29,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697420647] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 16:30:29,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 16:30:29,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 13] total 23 [2024-09-12 16:30:29,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223535996] [2024-09-12 16:30:29,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 16:30:29,014 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-12 16:30:29,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 16:30:29,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-12 16:30:29,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2024-09-12 16:30:29,015 INFO L87 Difference]: Start difference. First operand 143 states and 221 transitions. Second operand has 23 states, 22 states have (on average 4.045454545454546) internal successors, (89), 23 states have internal predecessors, (89), 15 states have call successors, (30), 2 states have call predecessors, (30), 7 states have return successors, (34), 11 states have call predecessors, (34), 15 states have call successors, (34) [2024-09-12 16:30:29,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 16:30:29,314 INFO L93 Difference]: Finished difference Result 283 states and 456 transitions. [2024-09-12 16:30:29,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 16:30:29,315 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 4.045454545454546) internal successors, (89), 23 states have internal predecessors, (89), 15 states have call successors, (30), 2 states have call predecessors, (30), 7 states have return successors, (34), 11 states have call predecessors, (34), 15 states have call successors, (34) Word has length 530 [2024-09-12 16:30:29,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 16:30:29,318 INFO L225 Difference]: With dead ends: 283 [2024-09-12 16:30:29,318 INFO L226 Difference]: Without dead ends: 153 [2024-09-12 16:30:29,320 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1237 GetRequests, 1203 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=152, Invalid=718, Unknown=0, NotChecked=0, Total=870 [2024-09-12 16:30:29,320 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 40 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 16:30:29,321 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 275 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 16:30:29,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-09-12 16:30:29,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 147. [2024-09-12 16:30:29,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 101 states have (on average 1.1584158415841583) internal successors, (117), 98 states have internal predecessors, (117), 28 states have call successors, (28), 21 states have call predecessors, (28), 17 states have return successors, (69), 27 states have call predecessors, (69), 27 states have call successors, (69) [2024-09-12 16:30:29,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2024-09-12 16:30:29,352 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 530 [2024-09-12 16:30:29,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 16:30:29,354 INFO L474 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2024-09-12 16:30:29,354 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 4.045454545454546) internal successors, (89), 23 states have internal predecessors, (89), 15 states have call successors, (30), 2 states have call predecessors, (30), 7 states have return successors, (34), 11 states have call predecessors, (34), 15 states have call successors, (34) [2024-09-12 16:30:29,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:29,355 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2024-09-12 16:30:29,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2024-09-12 16:30:29,362 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 16:30:29,363 INFO L216 NwaCegarLoop]: trace histogram [33, 33, 30, 30, 26, 25, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 11, 9, 7, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 16:30:29,379 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 16:30:29,566 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 16:30:29,567 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 16:30:29,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:29,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1226774066, now seen corresponding path program 4 times [2024-09-12 16:30:29,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 16:30:29,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781302116] [2024-09-12 16:30:29,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:29,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 16:30:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:29,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 16:30:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:29,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 16:30:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:30,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,528 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:30,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,755 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:30,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:30,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 16:30:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,841 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,858 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:30,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,888 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:30,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 16:30:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:30,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:30,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,012 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:31,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:31,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-12 16:30:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,065 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,083 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,092 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:31,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,096 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,100 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:31,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:31,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,104 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:31,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:31,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,110 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:31,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,112 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,118 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,119 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,120 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,122 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 16:30:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,128 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,131 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,132 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:31,137 INFO L134 CoverageAnalysis]: Checked inductivity of 5377 backedges. 548 proven. 844 refuted. 0 times theorem prover too weak. 3985 trivial. 0 not checked. [2024-09-12 16:30:31,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 16:30:31,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781302116] [2024-09-12 16:30:31,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781302116] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 16:30:31,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062064065] [2024-09-12 16:30:31,138 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 16:30:31,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:31,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 16:30:31,140 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 16:30:31,142 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 16:30:31,329 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 16:30:31,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 16:30:31,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 16:30:31,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 16:30:31,530 INFO L134 CoverageAnalysis]: Checked inductivity of 5377 backedges. 431 proven. 787 refuted. 0 times theorem prover too weak. 4159 trivial. 0 not checked. [2024-09-12 16:30:31,530 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 16:30:34,427 INFO L134 CoverageAnalysis]: Checked inductivity of 5377 backedges. 433 proven. 815 refuted. 0 times theorem prover too weak. 4129 trivial. 0 not checked. [2024-09-12 16:30:34,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062064065] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 16:30:34,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 16:30:34,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 13, 19] total 38 [2024-09-12 16:30:34,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123159447] [2024-09-12 16:30:34,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 16:30:34,429 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-09-12 16:30:34,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 16:30:34,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-09-12 16:30:34,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=1210, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 16:30:34,431 INFO L87 Difference]: Start difference. First operand 147 states and 214 transitions. Second operand has 38 states, 36 states have (on average 3.0277777777777777) internal successors, (109), 38 states have internal predecessors, (109), 28 states have call successors, (37), 1 states have call predecessors, (37), 16 states have return successors, (47), 24 states have call predecessors, (47), 28 states have call successors, (47) [2024-09-12 16:30:35,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 16:30:35,093 INFO L93 Difference]: Finished difference Result 335 states and 607 transitions. [2024-09-12 16:30:35,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-09-12 16:30:35,093 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 36 states have (on average 3.0277777777777777) internal successors, (109), 38 states have internal predecessors, (109), 28 states have call successors, (37), 1 states have call predecessors, (37), 16 states have return successors, (47), 24 states have call predecessors, (47), 28 states have call successors, (47) Word has length 436 [2024-09-12 16:30:35,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 16:30:35,096 INFO L225 Difference]: With dead ends: 335 [2024-09-12 16:30:35,096 INFO L226 Difference]: Without dead ends: 173 [2024-09-12 16:30:35,101 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1038 GetRequests, 975 SyntacticMatches, 9 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1082 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=432, Invalid=2648, Unknown=0, NotChecked=0, Total=3080 [2024-09-12 16:30:35,101 INFO L434 NwaCegarLoop]: 49 mSDtfsCounter, 101 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 16:30:35,102 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 682 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 16:30:35,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-09-12 16:30:35,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 153. [2024-09-12 16:30:35,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 105 states have (on average 1.0761904761904761) internal successors, (113), 102 states have internal predecessors, (113), 30 states have call successors, (30), 23 states have call predecessors, (30), 17 states have return successors, (48), 27 states have call predecessors, (48), 29 states have call successors, (48) [2024-09-12 16:30:35,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 191 transitions. [2024-09-12 16:30:35,121 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 191 transitions. Word has length 436 [2024-09-12 16:30:35,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 16:30:35,122 INFO L474 AbstractCegarLoop]: Abstraction has 153 states and 191 transitions. [2024-09-12 16:30:35,122 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 36 states have (on average 3.0277777777777777) internal successors, (109), 38 states have internal predecessors, (109), 28 states have call successors, (37), 1 states have call predecessors, (37), 16 states have return successors, (47), 24 states have call predecessors, (47), 28 states have call successors, (47) [2024-09-12 16:30:35,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:35,123 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 191 transitions. [2024-09-12 16:30:35,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2024-09-12 16:30:35,125 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 16:30:35,125 INFO L216 NwaCegarLoop]: trace histogram [32, 32, 31, 31, 26, 25, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 11, 9, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 16:30:35,142 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-12 16:30:35,326 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 16:30:35,326 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 16:30:35,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:35,327 INFO L85 PathProgramCache]: Analyzing trace with hash 143598254, now seen corresponding path program 5 times [2024-09-12 16:30:35,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 16:30:35,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953651702] [2024-09-12 16:30:35,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:35,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 16:30:35,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:35,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 16:30:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:35,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 16:30:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:35,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,110 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,208 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,269 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,301 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,306 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,314 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,375 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,379 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 16:30:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,399 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,403 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,404 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 16:30:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,434 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,436 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,437 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-12 16:30:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,583 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,715 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,722 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,725 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,728 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 16:30:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,837 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:36,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,892 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:36,899 INFO L134 CoverageAnalysis]: Checked inductivity of 5369 backedges. 1060 proven. 718 refuted. 0 times theorem prover too weak. 3591 trivial. 0 not checked. [2024-09-12 16:30:36,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 16:30:36,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953651702] [2024-09-12 16:30:36,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953651702] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 16:30:36,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590404423] [2024-09-12 16:30:36,900 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 16:30:36,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:36,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 16:30:36,902 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 16:30:36,903 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 16:30:37,139 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2024-09-12 16:30:37,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 16:30:37,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 16:30:37,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 16:30:37,295 INFO L134 CoverageAnalysis]: Checked inductivity of 5369 backedges. 918 proven. 135 refuted. 0 times theorem prover too weak. 4316 trivial. 0 not checked. [2024-09-12 16:30:37,295 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 16:30:38,765 INFO L134 CoverageAnalysis]: Checked inductivity of 5369 backedges. 920 proven. 137 refuted. 0 times theorem prover too weak. 4312 trivial. 0 not checked. [2024-09-12 16:30:38,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590404423] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 16:30:38,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 16:30:38,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 13, 15] total 41 [2024-09-12 16:30:38,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974933926] [2024-09-12 16:30:38,766 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 16:30:38,767 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-09-12 16:30:38,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 16:30:38,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-09-12 16:30:38,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=1407, Unknown=0, NotChecked=0, Total=1640 [2024-09-12 16:30:38,769 INFO L87 Difference]: Start difference. First operand 153 states and 191 transitions. Second operand has 41 states, 40 states have (on average 2.775) internal successors, (111), 41 states have internal predecessors, (111), 23 states have call successors, (37), 1 states have call predecessors, (37), 16 states have return successors, (46), 29 states have call predecessors, (46), 23 states have call successors, (46) [2024-09-12 16:30:39,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 16:30:39,367 INFO L93 Difference]: Finished difference Result 327 states and 426 transitions. [2024-09-12 16:30:39,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-12 16:30:39,368 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.775) internal successors, (111), 41 states have internal predecessors, (111), 23 states have call successors, (37), 1 states have call predecessors, (37), 16 states have return successors, (46), 29 states have call predecessors, (46), 23 states have call successors, (46) Word has length 436 [2024-09-12 16:30:39,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 16:30:39,371 INFO L225 Difference]: With dead ends: 327 [2024-09-12 16:30:39,371 INFO L226 Difference]: Without dead ends: 184 [2024-09-12 16:30:39,373 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1040 GetRequests, 981 SyntacticMatches, 7 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1132 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=416, Invalid=2446, Unknown=0, NotChecked=0, Total=2862 [2024-09-12 16:30:39,374 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 97 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 16:30:39,375 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 816 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 16:30:39,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-09-12 16:30:39,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 155. [2024-09-12 16:30:39,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 107 states have (on average 1.0373831775700935) internal successors, (111), 105 states have internal predecessors, (111), 31 states have call successors, (31), 24 states have call predecessors, (31), 16 states have return successors, (45), 25 states have call predecessors, (45), 30 states have call successors, (45) [2024-09-12 16:30:39,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 187 transitions. [2024-09-12 16:30:39,395 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 187 transitions. Word has length 436 [2024-09-12 16:30:39,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 16:30:39,395 INFO L474 AbstractCegarLoop]: Abstraction has 155 states and 187 transitions. [2024-09-12 16:30:39,396 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 2.775) internal successors, (111), 41 states have internal predecessors, (111), 23 states have call successors, (37), 1 states have call predecessors, (37), 16 states have return successors, (46), 29 states have call predecessors, (46), 23 states have call successors, (46) [2024-09-12 16:30:39,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:39,396 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 187 transitions. [2024-09-12 16:30:39,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-09-12 16:30:39,398 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 16:30:39,398 INFO L216 NwaCegarLoop]: trace histogram [29, 29, 28, 28, 23, 23, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 9, 9, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 16:30:39,416 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-12 16:30:39,599 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:39,599 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 16:30:39,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:39,599 INFO L85 PathProgramCache]: Analyzing trace with hash -47366488, now seen corresponding path program 6 times [2024-09-12 16:30:39,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 16:30:39,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562077154] [2024-09-12 16:30:39,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:39,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 16:30:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:39,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 16:30:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:39,832 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 16:30:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,449 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:40,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:40,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:40,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,527 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,529 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 16:30:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,545 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,546 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 16:30:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,582 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,586 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-12 16:30:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,711 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:40,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:40,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,839 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:40,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,843 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:40,849 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 726 proven. 662 refuted. 0 times theorem prover too weak. 2982 trivial. 0 not checked. [2024-09-12 16:30:40,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 16:30:40,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562077154] [2024-09-12 16:30:40,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562077154] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 16:30:40,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580643637] [2024-09-12 16:30:40,852 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 16:30:40,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:40,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 16:30:40,854 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 16:30:40,856 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 16:30:41,019 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2024-09-12 16:30:41,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 16:30:41,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 16:30:41,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 16:30:41,130 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 603 proven. 95 refuted. 0 times theorem prover too weak. 3672 trivial. 0 not checked. [2024-09-12 16:30:41,131 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 16:30:42,367 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 607 proven. 101 refuted. 0 times theorem prover too weak. 3662 trivial. 0 not checked. [2024-09-12 16:30:42,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580643637] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 16:30:42,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 16:30:42,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 10, 13] total 36 [2024-09-12 16:30:42,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123558249] [2024-09-12 16:30:42,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 16:30:42,369 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-12 16:30:42,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 16:30:42,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-12 16:30:42,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1077, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 16:30:42,371 INFO L87 Difference]: Start difference. First operand 155 states and 187 transitions. Second operand has 36 states, 35 states have (on average 2.742857142857143) internal successors, (96), 36 states have internal predecessors, (96), 21 states have call successors, (32), 1 states have call predecessors, (32), 16 states have return successors, (41), 28 states have call predecessors, (41), 21 states have call successors, (41) [2024-09-12 16:30:42,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 16:30:42,983 INFO L93 Difference]: Finished difference Result 233 states and 284 transitions. [2024-09-12 16:30:42,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-12 16:30:42,984 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 2.742857142857143) internal successors, (96), 36 states have internal predecessors, (96), 21 states have call successors, (32), 1 states have call predecessors, (32), 16 states have return successors, (41), 28 states have call predecessors, (41), 21 states have call successors, (41) Word has length 395 [2024-09-12 16:30:42,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 16:30:42,987 INFO L225 Difference]: With dead ends: 233 [2024-09-12 16:30:42,987 INFO L226 Difference]: Without dead ends: 209 [2024-09-12 16:30:42,988 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 949 GetRequests, 889 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1044 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=442, Invalid=2638, Unknown=0, NotChecked=0, Total=3080 [2024-09-12 16:30:42,989 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 121 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 16:30:42,989 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 552 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 16:30:42,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-09-12 16:30:43,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 172. [2024-09-12 16:30:43,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 119 states have (on average 1.0336134453781514) internal successors, (123), 117 states have internal predecessors, (123), 35 states have call successors, (35), 27 states have call predecessors, (35), 17 states have return successors, (46), 27 states have call predecessors, (46), 34 states have call successors, (46) [2024-09-12 16:30:43,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 204 transitions. [2024-09-12 16:30:43,014 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 204 transitions. Word has length 395 [2024-09-12 16:30:43,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 16:30:43,015 INFO L474 AbstractCegarLoop]: Abstraction has 172 states and 204 transitions. [2024-09-12 16:30:43,015 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 2.742857142857143) internal successors, (96), 36 states have internal predecessors, (96), 21 states have call successors, (32), 1 states have call predecessors, (32), 16 states have return successors, (41), 28 states have call predecessors, (41), 21 states have call successors, (41) [2024-09-12 16:30:43,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:43,015 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 204 transitions. [2024-09-12 16:30:43,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-09-12 16:30:43,018 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 16:30:43,018 INFO L216 NwaCegarLoop]: trace histogram [34, 34, 33, 33, 27, 27, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 11, 10, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 16:30:43,036 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-12 16:30:43,218 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 16:30:43,219 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 16:30:43,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:43,220 INFO L85 PathProgramCache]: Analyzing trace with hash -853718073, now seen corresponding path program 7 times [2024-09-12 16:30:43,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 16:30:43,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825551509] [2024-09-12 16:30:43,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:43,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 16:30:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:46,137 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 16:30:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:46,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 16:30:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:47,755 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:47,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:48,449 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:48,664 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:48,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:48,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:48,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:48,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:48,945 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:48,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:48,985 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:48,988 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:48,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,120 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 16:30:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,245 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,261 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,270 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,282 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,287 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,300 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,304 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,309 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 16:30:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:49,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,555 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:49,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:49,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-12 16:30:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:49,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:49,970 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:50,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,019 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,046 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:50,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,085 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,091 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:50,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,096 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:50,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,101 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 16:30:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,181 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,205 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2024-09-12 16:30:50,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 16:30:50,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825551509] [2024-09-12 16:30:50,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825551509] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 16:30:50,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542030897] [2024-09-12 16:30:50,206 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 16:30:50,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:50,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 16:30:50,208 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 16:30:50,210 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 16:30:50,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:50,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 271 conjuncts are in the unsatisfiable core [2024-09-12 16:30:50,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 16:30:51,119 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2024-09-12 16:30:51,119 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 16:30:53,096 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2024-09-12 16:30:53,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542030897] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 16:30:53,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 16:30:53,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 52 [2024-09-12 16:30:53,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165105981] [2024-09-12 16:30:53,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 16:30:53,098 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-09-12 16:30:53,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 16:30:53,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-09-12 16:30:53,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=2527, Unknown=0, NotChecked=0, Total=2652 [2024-09-12 16:30:53,099 INFO L87 Difference]: Start difference. First operand 172 states and 204 transitions. Second operand has 52 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 27 states have internal predecessors, (63), 11 states have call successors, (15), 1 states have call predecessors, (15), 15 states have return successors, (36), 36 states have call predecessors, (36), 11 states have call successors, (36) [2024-09-12 16:30:53,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 16:30:53,706 INFO L93 Difference]: Finished difference Result 227 states and 289 transitions. [2024-09-12 16:30:53,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-12 16:30:53,706 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 27 states have internal predecessors, (63), 11 states have call successors, (15), 1 states have call predecessors, (15), 15 states have return successors, (36), 36 states have call predecessors, (36), 11 states have call successors, (36) Word has length 463 [2024-09-12 16:30:53,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 16:30:53,709 INFO L225 Difference]: With dead ends: 227 [2024-09-12 16:30:53,709 INFO L226 Difference]: Without dead ends: 220 [2024-09-12 16:30:53,710 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1198 GetRequests, 1148 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=125, Invalid=2527, Unknown=0, NotChecked=0, Total=2652 [2024-09-12 16:30:53,711 INFO L434 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 2864 mSDsCounter, 0 mSdLazyCounter, 1584 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2943 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 16:30:53,711 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2943 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1584 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 16:30:53,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-09-12 16:30:53,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 215. [2024-09-12 16:30:53,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 145 states have (on average 1.0275862068965518) internal successors, (149), 143 states have internal predecessors, (149), 43 states have call successors, (43), 27 states have call predecessors, (43), 26 states have return successors, (85), 44 states have call predecessors, (85), 42 states have call successors, (85) [2024-09-12 16:30:53,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 277 transitions. [2024-09-12 16:30:53,744 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 277 transitions. Word has length 463 [2024-09-12 16:30:53,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 16:30:53,745 INFO L474 AbstractCegarLoop]: Abstraction has 215 states and 277 transitions. [2024-09-12 16:30:53,745 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 27 states have internal predecessors, (63), 11 states have call successors, (15), 1 states have call predecessors, (15), 15 states have return successors, (36), 36 states have call predecessors, (36), 11 states have call successors, (36) [2024-09-12 16:30:53,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:53,745 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 277 transitions. [2024-09-12 16:30:53,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-09-12 16:30:53,748 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 16:30:53,748 INFO L216 NwaCegarLoop]: trace histogram [34, 34, 33, 33, 29, 27, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 12, 11, 7, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 16:30:53,766 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-12 16:30:53,949 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 16:30:53,949 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 16:30:53,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:53,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1879272131, now seen corresponding path program 8 times [2024-09-12 16:30:53,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 16:30:53,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867541223] [2024-09-12 16:30:53,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:53,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 16:30:53,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,175 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 16:30:54,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 16:30:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,702 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:54,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,858 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:54,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:54,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 16:30:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,919 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,922 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,923 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:54,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,926 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,929 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 16:30:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,950 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,952 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,953 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,954 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,955 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:54,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,958 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,959 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,967 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:54,971 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-12 16:30:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,046 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:55,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,094 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 16:30:55,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,095 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 16:30:55,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,098 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,099 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 16:30:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,102 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:55,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:55,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,104 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 16:30:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,110 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,113 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:55,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,114 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:55,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,117 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,120 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,121 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:55,122 INFO L134 CoverageAnalysis]: Checked inductivity of 6137 backedges. 748 proven. 1131 refuted. 0 times theorem prover too weak. 4258 trivial. 0 not checked. [2024-09-12 16:30:55,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 16:30:55,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867541223] [2024-09-12 16:30:55,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867541223] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 16:30:55,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870441359] [2024-09-12 16:30:55,123 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 16:30:55,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:55,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 16:30:55,124 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 16:30:55,125 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 16:30:55,332 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 16:30:55,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 16:30:55,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 1051 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 16:30:55,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 16:30:55,488 INFO L134 CoverageAnalysis]: Checked inductivity of 6137 backedges. 837 proven. 325 refuted. 0 times theorem prover too weak. 4975 trivial. 0 not checked. [2024-09-12 16:30:55,488 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 16:30:57,411 INFO L134 CoverageAnalysis]: Checked inductivity of 6137 backedges. 841 proven. 342 refuted. 0 times theorem prover too weak. 4954 trivial. 0 not checked. [2024-09-12 16:30:57,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870441359] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 16:30:57,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 16:30:57,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 12, 17] total 38 [2024-09-12 16:30:57,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34362177] [2024-09-12 16:30:57,412 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 16:30:57,413 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-09-12 16:30:57,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 16:30:57,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-09-12 16:30:57,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1215, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 16:30:57,415 INFO L87 Difference]: Start difference. First operand 215 states and 277 transitions. Second operand has 38 states, 37 states have (on average 2.918918918918919) internal successors, (108), 38 states have internal predecessors, (108), 25 states have call successors, (35), 1 states have call predecessors, (35), 17 states have return successors, (47), 26 states have call predecessors, (47), 25 states have call successors, (47) [2024-09-12 16:30:58,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 16:30:58,103 INFO L93 Difference]: Finished difference Result 442 states and 611 transitions. [2024-09-12 16:30:58,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-09-12 16:30:58,107 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.918918918918919) internal successors, (108), 38 states have internal predecessors, (108), 25 states have call successors, (35), 1 states have call predecessors, (35), 17 states have return successors, (47), 26 states have call predecessors, (47), 25 states have call successors, (47) Word has length 465 [2024-09-12 16:30:58,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 16:30:58,111 INFO L225 Difference]: With dead ends: 442 [2024-09-12 16:30:58,111 INFO L226 Difference]: Without dead ends: 168 [2024-09-12 16:30:58,114 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1119 GetRequests, 1048 SyntacticMatches, 8 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1446 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=575, Invalid=3585, Unknown=0, NotChecked=0, Total=4160 [2024-09-12 16:30:58,114 INFO L434 NwaCegarLoop]: 50 mSDtfsCounter, 113 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 1100 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 16:30:58,114 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 638 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1100 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 16:30:58,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-09-12 16:30:58,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 161. [2024-09-12 16:30:58,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 112 states have (on average 1.0357142857142858) internal successors, (116), 110 states have internal predecessors, (116), 32 states have call successors, (32), 26 states have call predecessors, (32), 16 states have return successors, (36), 24 states have call predecessors, (36), 31 states have call successors, (36) [2024-09-12 16:30:58,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 184 transitions. [2024-09-12 16:30:58,135 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 184 transitions. Word has length 465 [2024-09-12 16:30:58,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 16:30:58,136 INFO L474 AbstractCegarLoop]: Abstraction has 161 states and 184 transitions. [2024-09-12 16:30:58,136 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.918918918918919) internal successors, (108), 38 states have internal predecessors, (108), 25 states have call successors, (35), 1 states have call predecessors, (35), 17 states have return successors, (47), 26 states have call predecessors, (47), 25 states have call successors, (47) [2024-09-12 16:30:58,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:58,136 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 184 transitions. [2024-09-12 16:30:58,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-09-12 16:30:58,139 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 16:30:58,139 INFO L216 NwaCegarLoop]: trace histogram [40, 40, 37, 37, 31, 31, 20, 20, 20, 20, 20, 20, 20, 18, 18, 18, 18, 18, 18, 18, 13, 11, 9, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 16:30:58,157 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-12 16:30:58,340 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 16:30:58,340 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-12 16:30:58,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:30:58,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1544679608, now seen corresponding path program 9 times [2024-09-12 16:30:58,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 16:30:58,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371675031] [2024-09-12 16:30:58,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 16:30:58,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 16:30:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:58,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 16:30:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:58,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 16:30:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:58,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,171 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,231 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,234 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,235 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,236 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,236 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,237 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,269 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,273 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,277 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,279 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,279 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:59,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,280 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:59,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 16:30:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,287 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,290 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,291 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,292 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,292 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,294 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 16:30:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,376 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-12 16:30:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,404 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:59,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-09-12 16:30:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 16:30:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,466 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 16:30:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,471 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,474 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,476 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 16:30:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-12 16:30:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-12 16:30:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 16:30:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 16:30:59,484 INFO L134 CoverageAnalysis]: Checked inductivity of 8086 backedges. 575 proven. 1278 refuted. 0 times theorem prover too weak. 6233 trivial. 0 not checked. [2024-09-12 16:30:59,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 16:30:59,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371675031] [2024-09-12 16:30:59,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371675031] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 16:30:59,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810784934] [2024-09-12 16:30:59,484 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 16:30:59,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 16:30:59,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 16:30:59,488 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 16:30:59,489 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 16:30:59,741 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 30 check-sat command(s) [2024-09-12 16:30:59,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 16:30:59,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 1000 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 16:30:59,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 16:30:59,896 INFO L134 CoverageAnalysis]: Checked inductivity of 8086 backedges. 423 proven. 918 refuted. 0 times theorem prover too weak. 6745 trivial. 0 not checked. [2024-09-12 16:30:59,897 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 16:31:02,123 INFO L134 CoverageAnalysis]: Checked inductivity of 8086 backedges. 429 proven. 936 refuted. 0 times theorem prover too weak. 6721 trivial. 0 not checked. [2024-09-12 16:31:02,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810784934] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 16:31:02,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 16:31:02,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 12, 17] total 36 [2024-09-12 16:31:02,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444124559] [2024-09-12 16:31:02,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 16:31:02,124 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-12 16:31:02,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 16:31:02,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-12 16:31:02,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1075, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 16:31:02,126 INFO L87 Difference]: Start difference. First operand 161 states and 184 transitions. Second operand has 36 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 36 states have internal predecessors, (106), 24 states have call successors, (36), 1 states have call predecessors, (36), 16 states have return successors, (47), 26 states have call predecessors, (47), 24 states have call successors, (47) [2024-09-12 16:31:02,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 16:31:02,565 INFO L93 Difference]: Finished difference Result 291 states and 337 transitions. [2024-09-12 16:31:02,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-12 16:31:02,566 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 36 states have internal predecessors, (106), 24 states have call successors, (36), 1 states have call predecessors, (36), 16 states have return successors, (47), 26 states have call predecessors, (47), 24 states have call successors, (47) Word has length 531 [2024-09-12 16:31:02,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 16:31:02,568 INFO L225 Difference]: With dead ends: 291 [2024-09-12 16:31:02,568 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 16:31:02,570 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1252 GetRequests, 1197 SyntacticMatches, 8 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 854 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=343, Invalid=2009, Unknown=0, NotChecked=0, Total=2352 [2024-09-12 16:31:02,571 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 75 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 16:31:02,571 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 400 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 16:31:02,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 16:31:02,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 16:31:02,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-12 16:31:02,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 16:31:02,573 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 531 [2024-09-12 16:31:02,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 16:31:02,573 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 16:31:02,573 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 36 states have internal predecessors, (106), 24 states have call successors, (36), 1 states have call predecessors, (36), 16 states have return successors, (47), 26 states have call predecessors, (47), 24 states have call successors, (47) [2024-09-12 16:31:02,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 16:31:02,574 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 16:31:02,574 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 16:31:02,576 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-12 16:31:02,599 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-12 16:31:02,777 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 16:31:02,781 INFO L408 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 16:31:02,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 16:31:14,473 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-12 16:31:14,488 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-09-12 16:31:14,500 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-09-12 16:31:14,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 04:31:14 BoogieIcfgContainer [2024-09-12 16:31:14,501 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-12 16:31:14,502 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-12 16:31:14,502 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-12 16:31:14,502 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-12 16:31:14,504 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 04:30:10" (3/4) ... [2024-09-12 16:31:14,505 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-12 16:31:14,509 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-12 16:31:14,510 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-12 16:31:14,510 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo2 [2024-09-12 16:31:14,510 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo1 [2024-09-12 16:31:14,514 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-09-12 16:31:14,515 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-09-12 16:31:14,515 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-09-12 16:31:14,515 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-12 16:31:14,597 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-12 16:31:14,600 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-12 16:31:14,600 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-12 16:31:14,600 INFO L158 Benchmark]: Toolchain (without parser) took 64594.96ms. Allocated memory was 62.9MB in the beginning and 1.2GB in the end (delta: 1.2GB). Free memory was 27.3MB in the beginning and 682.3MB in the end (delta: -654.9MB). Peak memory consumption was 523.0MB. Max. memory is 16.1GB. [2024-09-12 16:31:14,601 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 46.1MB. Free memory was 24.5MB in the beginning and 24.5MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 16:31:14,601 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.73ms. Allocated memory is still 62.9MB. Free memory was 27.1MB in the beginning and 34.1MB in the end (delta: -7.0MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2024-09-12 16:31:14,602 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.96ms. Allocated memory is still 62.9MB. Free memory was 34.1MB in the beginning and 33.2MB in the end (delta: 954.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 16:31:14,602 INFO L158 Benchmark]: Boogie Preprocessor took 44.23ms. Allocated memory is still 62.9MB. Free memory was 33.2MB in the beginning and 31.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 16:31:14,603 INFO L158 Benchmark]: RCFGBuilder took 356.32ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 31.3MB in the beginning and 62.1MB in the end (delta: -30.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-12 16:31:14,603 INFO L158 Benchmark]: TraceAbstraction took 63793.44ms. Allocated memory was 88.1MB in the beginning and 1.2GB in the end (delta: 1.2GB). Free memory was 61.4MB in the beginning and 686.4MB in the end (delta: -625.0MB). Peak memory consumption was 751.8MB. Max. memory is 16.1GB. [2024-09-12 16:31:14,603 INFO L158 Benchmark]: Witness Printer took 97.97ms. Allocated memory is still 1.2GB. Free memory was 686.4MB in the beginning and 682.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-12 16:31:14,605 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 46.1MB. Free memory was 24.5MB in the beginning and 24.5MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.73ms. Allocated memory is still 62.9MB. Free memory was 27.1MB in the beginning and 34.1MB in the end (delta: -7.0MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.96ms. Allocated memory is still 62.9MB. Free memory was 34.1MB in the beginning and 33.2MB in the end (delta: 954.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.23ms. Allocated memory is still 62.9MB. Free memory was 33.2MB in the beginning and 31.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 356.32ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 31.3MB in the beginning and 62.1MB in the end (delta: -30.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 63793.44ms. Allocated memory was 88.1MB in the beginning and 1.2GB in the end (delta: 1.2GB). Free memory was 61.4MB in the beginning and 686.4MB in the end (delta: -625.0MB). Peak memory consumption was 751.8MB. Max. memory is 16.1GB. * Witness Printer took 97.97ms. Allocated memory is still 1.2GB. Free memory was 686.4MB in the beginning and 682.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 41]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 52.0s, OverallIterations: 17, TraceHistogramMax: 40, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.1s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1028 SdHoareTripleChecker+Valid, 4.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 940 mSDsluCounter, 8776 SdHoareTripleChecker+Invalid, 3.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8131 mSDsCounter, 882 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9209 IncrementalHoareTripleChecker+Invalid, 10091 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 882 mSolverCounterUnsat, 645 mSDtfsCounter, 9209 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9585 GetRequests, 8949 SyntacticMatches, 77 SemanticMatches, 559 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7176 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=215occurred in iteration=15, InterpolantAutomatonStates: 421, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 17 MinimizatonAttempts, 226 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 38.7s InterpolantComputationTime, 7921 NumberOfCodeBlocks, 7172 NumberOfCodeBlocksAsserted, 107 NumberOfCheckSat, 11821 ConstructedInterpolants, 0 QuantifiedInterpolants, 17867 SizeOfPredicates, 58 NumberOfNonLiveVariables, 7300 ConjunctsInSsa, 439 ConjunctsInUnsatCore, 47 InterpolantComputations, 2 PerfectInterpolantSequences, 119092/137721 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 19]: Procedure Contract for fibo2 Derived contract for procedure fibo2. Ensures: (((((\old(n) < 6) || (\result == 13)) || (7 < \old(n))) && (((\result == 0) || (\old(n) == 1)) || (1 < \old(n)))) && (((\result == 1) || (\old(n) < 1)) || (3 < \old(n)))) - ProcedureContractResult [Line: 9]: Procedure Contract for fibo1 Derived contract for procedure fibo1. Ensures: ((((\result == 0) || ((\old(n) == 1) && (\result == 1))) || (2 < \old(n))) && ((21 == \result) || (\old(n) != 8))) RESULT: Ultimate proved your program to be correct! [2024-09-12 16:31:14,634 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE