./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c --full-output --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-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 --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-11 20:28:00,239 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:28:00,318 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-11 20:28:00,323 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:28:00,324 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:28:00,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:28:00,355 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:28:00,355 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:28:00,356 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:28:00,357 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:28:00,358 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:28:00,358 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:28:00,359 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:28:00,359 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:28:00,361 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:28:00,361 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:28:00,362 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:28:00,362 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:28:00,362 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:28:00,363 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:28:00,363 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:28:00,366 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:28:00,366 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:28:00,367 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:28:00,367 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:28:00,367 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:28:00,368 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:28:00,368 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:28:00,368 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:28:00,369 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:28:00,369 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:28:00,369 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:28:00,370 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:28:00,370 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:28:00,370 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:28:00,371 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:28:00,371 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:28:00,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:28:00,371 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:28:00,372 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:28:00,372 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:28:00,372 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:28:00,373 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50f60fa428d099767eedeaaecff58f84e68d960030ff43c7eae2dbdfbde6f992 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 [2024-09-11 20:28:00,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:28:00,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:28:00,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:28:00,658 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:28:00,659 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:28:00,660 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-09-11 20:28:02,079 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:28:02,263 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:28:02,263 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-09-11 20:28:02,270 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/4336cb7cd/ac8d9be228024c8ea647446e24f6eb95/FLAGf43398a62 [2024-09-11 20:28:02,657 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/4336cb7cd/ac8d9be228024c8ea647446e24f6eb95 [2024-09-11 20:28:02,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:28:02,661 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-11 20:28:02,665 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:28:02,665 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:28:02,670 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:28:02,671 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:28:02" (1/1) ... [2024-09-11 20:28:02,671 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66df3c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:28:02, skipping insertion in model container [2024-09-11 20:28:02,672 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:28:02" (1/1) ... [2024-09-11 20:28:02,688 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:28:02,845 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] [2024-09-11 20:28:02,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:28:02,865 INFO L200 MainTranslator]: Completed pre-run [2024-09-11 20:28:02,880 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] [2024-09-11 20:28:02,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:28:02,897 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:28:02,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:28:02 WrapperNode [2024-09-11 20:28:02,898 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:28:02,899 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-11 20:28:02,899 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-11 20:28:02,899 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-11 20:28:02,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:28:02" (1/1) ... [2024-09-11 20:28:02,915 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:28:02" (1/1) ... [2024-09-11 20:28:02,933 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2024-09-11 20:28:02,934 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-11 20:28:02,934 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:28:02,935 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:28:02,935 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:28:02,944 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:28:02" (1/1) ... [2024-09-11 20:28:02,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:28:02" (1/1) ... [2024-09-11 20:28:02,946 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:28:02" (1/1) ... [2024-09-11 20:28:02,959 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-11 20:28:02,961 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:28:02" (1/1) ... [2024-09-11 20:28:02,962 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:28:02" (1/1) ... [2024-09-11 20:28:02,964 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:28:02" (1/1) ... [2024-09-11 20:28:02,969 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:28:02" (1/1) ... [2024-09-11 20:28:02,969 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:28:02" (1/1) ... [2024-09-11 20:28:02,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:28:02" (1/1) ... [2024-09-11 20:28:02,971 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:28:02,976 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:28:02,976 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:28:02,976 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:28:02,977 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:28:02" (1/1) ... [2024-09-11 20:28:02,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:28:02,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:28:03,011 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-11 20:28:03,014 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-11 20:28:03,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:28:03,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-11 20:28:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-09-11 20:28:03,058 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-09-11 20:28:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-09-11 20:28:03,058 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-09-11 20:28:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:28:03,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:28:03,120 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:28:03,122 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:28:03,252 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-09-11 20:28:03,252 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:28:03,291 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:28:03,291 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-11 20:28:03,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:28:03 BoogieIcfgContainer [2024-09-11 20:28:03,292 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:28:03,294 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-11 20:28:03,296 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-11 20:28:03,299 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-11 20:28:03,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 08:28:02" (1/3) ... [2024-09-11 20:28:03,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4cff9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 08:28:03, skipping insertion in model container [2024-09-11 20:28:03,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:28:02" (2/3) ... [2024-09-11 20:28:03,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4cff9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 08:28:03, skipping insertion in model container [2024-09-11 20:28:03,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:28:03" (3/3) ... [2024-09-11 20:28:03,304 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2024-09-11 20:28:03,319 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-11 20:28:03,320 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-11 20:28:03,375 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-11 20:28:03,384 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;@31a4ed7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-11 20:28:03,385 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-11 20:28:03,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-11 20:28:03,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-09-11 20:28:03,397 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:28:03,397 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:28:03,398 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:28:03,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:03,402 INFO L85 PathProgramCache]: Analyzing trace with hash -389521846, now seen corresponding path program 1 times [2024-09-11 20:28:03,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:28:03,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602361647] [2024-09-11 20:28:03,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:03,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:28:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:03,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-11 20:28:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:03,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-11 20:28:03,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:28:03,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602361647] [2024-09-11 20:28:03,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602361647] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-11 20:28:03,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-11 20:28:03,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-11 20:28:03,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994362560] [2024-09-11 20:28:03,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-11 20:28:03,724 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-11 20:28:03,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:28:03,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-11 20:28:03,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-11 20:28:03,746 INFO L87 Difference]: Start difference. First operand has 26 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-11 20:28:03,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:28:03,836 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions. [2024-09-11 20:28:03,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-11 20:28:03,838 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2024-09-11 20:28:03,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:28:03,847 INFO L225 Difference]: With dead ends: 36 [2024-09-11 20:28:03,847 INFO L226 Difference]: Without dead ends: 28 [2024-09-11 20:28:03,850 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-11 20:28:03,854 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 9 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 80 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 [2024-09-11 20:28:03,855 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 80 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-11 20:28:03,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-09-11 20:28:03,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2024-09-11 20:28:03,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-11 20:28:03,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2024-09-11 20:28:03,889 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 9 [2024-09-11 20:28:03,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:28:03,890 INFO L474 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2024-09-11 20:28:03,892 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-11 20:28:03,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:03,893 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-09-11 20:28:03,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-11 20:28:03,896 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:28:03,896 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:28:03,896 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-11 20:28:03,896 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:28:03,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:03,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1524884472, now seen corresponding path program 1 times [2024-09-11 20:28:03,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:28:03,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26500390] [2024-09-11 20:28:03,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:03,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:28:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:03,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-11 20:28:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:04,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-11 20:28:04,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:28:04,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26500390] [2024-09-11 20:28:04,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26500390] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-11 20:28:04,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-11 20:28:04,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-11 20:28:04,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558575886] [2024-09-11 20:28:04,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-11 20:28:04,031 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-11 20:28:04,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:28:04,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-11 20:28:04,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-11 20:28:04,033 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-11 20:28:04,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:28:04,118 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2024-09-11 20:28:04,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-11 20:28:04,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2024-09-11 20:28:04,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:28:04,121 INFO L225 Difference]: With dead ends: 32 [2024-09-11 20:28:04,121 INFO L226 Difference]: Without dead ends: 28 [2024-09-11 20:28:04,122 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-11 20:28:04,125 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 7 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-11 20:28:04,126 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 73 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-11 20:28:04,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-09-11 20:28:04,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2024-09-11 20:28:04,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-11 20:28:04,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2024-09-11 20:28:04,136 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 10 [2024-09-11 20:28:04,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:28:04,136 INFO L474 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2024-09-11 20:28:04,136 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-11 20:28:04,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:04,137 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-09-11 20:28:04,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-11 20:28:04,138 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:28:04,138 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:28:04,139 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-11 20:28:04,139 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:28:04,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:04,140 INFO L85 PathProgramCache]: Analyzing trace with hash 741502751, now seen corresponding path program 1 times [2024-09-11 20:28:04,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:28:04,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903006857] [2024-09-11 20:28:04,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:04,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:28:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:04,195 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-11 20:28:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:04,271 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:04,301 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-09-11 20:28:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:04,306 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-11 20:28:04,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:28:04,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903006857] [2024-09-11 20:28:04,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903006857] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:28:04,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735046156] [2024-09-11 20:28:04,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:04,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:28:04,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:28:04,310 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-11 20:28:04,312 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-11 20:28:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:04,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-11 20:28:04,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:28:04,452 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-11 20:28:04,453 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:28:04,656 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-11 20:28:04,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735046156] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:28:04,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:28:04,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 13 [2024-09-11 20:28:04,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006924482] [2024-09-11 20:28:04,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:28:04,658 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-11 20:28:04,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:28:04,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-11 20:28:04,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-09-11 20:28:04,662 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 13 states, 10 states have (on average 3.1) internal successors, (31), 13 states have internal predecessors, (31), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-11 20:28:04,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:28:04,805 INFO L93 Difference]: Finished difference Result 54 states and 74 transitions. [2024-09-11 20:28:04,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-11 20:28:04,806 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 3.1) internal successors, (31), 13 states have internal predecessors, (31), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) Word has length 22 [2024-09-11 20:28:04,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:28:04,807 INFO L225 Difference]: With dead ends: 54 [2024-09-11 20:28:04,807 INFO L226 Difference]: Without dead ends: 30 [2024-09-11 20:28:04,807 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-09-11 20:28:04,808 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 20 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-11 20:28:04,809 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 107 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-11 20:28:04,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-09-11 20:28:04,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2024-09-11 20:28:04,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 20 states have internal predecessors, (22), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-11 20:28:04,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2024-09-11 20:28:04,816 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 22 [2024-09-11 20:28:04,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:28:04,816 INFO L474 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2024-09-11 20:28:04,817 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 3.1) internal successors, (31), 13 states have internal predecessors, (31), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-11 20:28:04,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:04,817 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2024-09-11 20:28:04,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-09-11 20:28:04,818 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:28:04,818 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] [2024-09-11 20:28:04,835 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-11 20:28:05,019 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 [2024-09-11 20:28:05,019 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:28:05,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:05,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1785876995, now seen corresponding path program 1 times [2024-09-11 20:28:05,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:28:05,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767457485] [2024-09-11 20:28:05,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:05,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:28:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:05,088 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-11 20:28:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:05,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:05,189 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:05,197 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-11 20:28:05,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:28:05,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767457485] [2024-09-11 20:28:05,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767457485] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:28:05,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516683921] [2024-09-11 20:28:05,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:05,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:28:05,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:28:05,203 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-11 20:28:05,203 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-11 20:28:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:05,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-11 20:28:05,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:28:05,292 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-11 20:28:05,294 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:28:05,488 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-11 20:28:05,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516683921] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:28:05,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:28:05,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13 [2024-09-11 20:28:05,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313420402] [2024-09-11 20:28:05,492 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:28:05,492 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-11 20:28:05,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:28:05,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-11 20:28:05,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-09-11 20:28:05,495 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 13 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 13 states have internal predecessors, (31), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-11 20:28:05,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:28:05,694 INFO L93 Difference]: Finished difference Result 52 states and 73 transitions. [2024-09-11 20:28:05,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-11 20:28:05,694 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 13 states have internal predecessors, (31), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) Word has length 23 [2024-09-11 20:28:05,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:28:05,697 INFO L225 Difference]: With dead ends: 52 [2024-09-11 20:28:05,697 INFO L226 Difference]: Without dead ends: 48 [2024-09-11 20:28:05,697 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-09-11 20:28:05,698 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 35 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-11 20:28:05,698 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 123 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-11 20:28:05,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-09-11 20:28:05,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2024-09-11 20:28:05,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 32 states have internal predecessors, (38), 9 states have call successors, (9), 4 states have call predecessors, (9), 6 states have return successors, (17), 9 states have call predecessors, (17), 9 states have call successors, (17) [2024-09-11 20:28:05,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 64 transitions. [2024-09-11 20:28:05,709 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 64 transitions. Word has length 23 [2024-09-11 20:28:05,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:28:05,710 INFO L474 AbstractCegarLoop]: Abstraction has 46 states and 64 transitions. [2024-09-11 20:28:05,710 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 13 states have internal predecessors, (31), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-11 20:28:05,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:05,710 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 64 transitions. [2024-09-11 20:28:05,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-11 20:28:05,711 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:28:05,712 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:28:05,727 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-11 20:28:05,915 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 [2024-09-11 20:28:05,916 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:28:05,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:05,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1754399412, now seen corresponding path program 1 times [2024-09-11 20:28:05,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:28:05,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300386544] [2024-09-11 20:28:05,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:05,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:28:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:05,961 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-11 20:28:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:05,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:05,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:06,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:06,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:06,048 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-09-11 20:28:06,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:06,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-11 20:28:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:06,057 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-11 20:28:06,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:28:06,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300386544] [2024-09-11 20:28:06,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300386544] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:28:06,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377036201] [2024-09-11 20:28:06,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:06,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:28:06,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:28:06,060 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-11 20:28:06,061 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-11 20:28:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:06,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-11 20:28:06,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:28:06,204 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-11 20:28:06,205 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:28:06,515 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-11 20:28:06,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377036201] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:28:06,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:28:06,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 15 [2024-09-11 20:28:06,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318225594] [2024-09-11 20:28:06,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:28:06,516 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-11 20:28:06,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:28:06,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-11 20:28:06,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-09-11 20:28:06,518 INFO L87 Difference]: Start difference. First operand 46 states and 64 transitions. Second operand has 15 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 15 states have internal predecessors, (46), 11 states have call successors, (13), 1 states have call predecessors, (13), 5 states have return successors, (13), 3 states have call predecessors, (13), 11 states have call successors, (13) [2024-09-11 20:28:06,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:28:06,719 INFO L93 Difference]: Finished difference Result 108 states and 176 transitions. [2024-09-11 20:28:06,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-11 20:28:06,720 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 15 states have internal predecessors, (46), 11 states have call successors, (13), 1 states have call predecessors, (13), 5 states have return successors, (13), 3 states have call predecessors, (13), 11 states have call successors, (13) Word has length 35 [2024-09-11 20:28:06,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:28:06,722 INFO L225 Difference]: With dead ends: 108 [2024-09-11 20:28:06,722 INFO L226 Difference]: Without dead ends: 64 [2024-09-11 20:28:06,723 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 73 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2024-09-11 20:28:06,724 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 47 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-11 20:28:06,724 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 106 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-11 20:28:06,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-09-11 20:28:06,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2024-09-11 20:28:06,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 40 states have (on average 1.25) internal successors, (50), 43 states have internal predecessors, (50), 12 states have call successors, (12), 5 states have call predecessors, (12), 9 states have return successors, (29), 13 states have call predecessors, (29), 12 states have call successors, (29) [2024-09-11 20:28:06,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 91 transitions. [2024-09-11 20:28:06,739 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 91 transitions. Word has length 35 [2024-09-11 20:28:06,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:28:06,739 INFO L474 AbstractCegarLoop]: Abstraction has 62 states and 91 transitions. [2024-09-11 20:28:06,739 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 15 states have internal predecessors, (46), 11 states have call successors, (13), 1 states have call predecessors, (13), 5 states have return successors, (13), 3 states have call predecessors, (13), 11 states have call successors, (13) [2024-09-11 20:28:06,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:06,740 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 91 transitions. [2024-09-11 20:28:06,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-09-11 20:28:06,741 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:28:06,742 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] [2024-09-11 20:28:06,758 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-11 20:28:06,942 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 [2024-09-11 20:28:06,942 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:28:06,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:06,943 INFO L85 PathProgramCache]: Analyzing trace with hash 2101254926, now seen corresponding path program 1 times [2024-09-11 20:28:06,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:28:06,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526316418] [2024-09-11 20:28:06,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:06,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:28:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:06,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-11 20:28:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:07,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:07,087 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:07,092 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:07,096 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:07,113 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-09-11 20:28:07,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:28:07,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526316418] [2024-09-11 20:28:07,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526316418] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:28:07,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654698380] [2024-09-11 20:28:07,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:07,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:28:07,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:28:07,116 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-11 20:28:07,117 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-11 20:28:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:07,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-11 20:28:07,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:28:07,250 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-11 20:28:07,250 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:28:07,535 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-11 20:28:07,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654698380] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:28:07,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:28:07,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 18 [2024-09-11 20:28:07,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910014957] [2024-09-11 20:28:07,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:28:07,537 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-11 20:28:07,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:28:07,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-11 20:28:07,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2024-09-11 20:28:07,540 INFO L87 Difference]: Start difference. First operand 62 states and 91 transitions. Second operand has 18 states, 16 states have (on average 3.0625) internal successors, (49), 18 states have internal predecessors, (49), 11 states have call successors, (13), 1 states have call predecessors, (13), 7 states have return successors, (13), 6 states have call predecessors, (13), 11 states have call successors, (13) [2024-09-11 20:28:07,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:28:07,826 INFO L93 Difference]: Finished difference Result 178 states and 324 transitions. [2024-09-11 20:28:07,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-11 20:28:07,827 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.0625) internal successors, (49), 18 states have internal predecessors, (49), 11 states have call successors, (13), 1 states have call predecessors, (13), 7 states have return successors, (13), 6 states have call predecessors, (13), 11 states have call successors, (13) Word has length 36 [2024-09-11 20:28:07,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:28:07,830 INFO L225 Difference]: With dead ends: 178 [2024-09-11 20:28:07,830 INFO L226 Difference]: Without dead ends: 118 [2024-09-11 20:28:07,831 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 75 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2024-09-11 20:28:07,832 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 40 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-11 20:28:07,832 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 238 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-11 20:28:07,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-09-11 20:28:07,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 99. [2024-09-11 20:28:07,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 63 states have (on average 1.2222222222222223) internal successors, (77), 66 states have internal predecessors, (77), 21 states have call successors, (21), 7 states have call predecessors, (21), 14 states have return successors, (63), 25 states have call predecessors, (63), 21 states have call successors, (63) [2024-09-11 20:28:07,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 161 transitions. [2024-09-11 20:28:07,865 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 161 transitions. Word has length 36 [2024-09-11 20:28:07,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:28:07,866 INFO L474 AbstractCegarLoop]: Abstraction has 99 states and 161 transitions. [2024-09-11 20:28:07,866 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.0625) internal successors, (49), 18 states have internal predecessors, (49), 11 states have call successors, (13), 1 states have call predecessors, (13), 7 states have return successors, (13), 6 states have call predecessors, (13), 11 states have call successors, (13) [2024-09-11 20:28:07,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:07,868 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 161 transitions. [2024-09-11 20:28:07,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-11 20:28:07,874 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:28:07,874 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] [2024-09-11 20:28:07,892 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-11 20:28:08,075 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 [2024-09-11 20:28:08,075 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:28:08,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:08,075 INFO L85 PathProgramCache]: Analyzing trace with hash 644290867, now seen corresponding path program 1 times [2024-09-11 20:28:08,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:28:08,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068747516] [2024-09-11 20:28:08,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:08,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:28:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:08,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-11 20:28:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:08,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:08,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:08,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:08,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:08,259 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:08,269 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:08,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-11 20:28:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:08,291 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-09-11 20:28:08,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:28:08,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068747516] [2024-09-11 20:28:08,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068747516] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:28:08,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337368087] [2024-09-11 20:28:08,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:08,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:28:08,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:28:08,295 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-11 20:28:08,297 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-11 20:28:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:08,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-11 20:28:08,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:28:08,448 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-09-11 20:28:08,448 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:28:08,956 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-11 20:28:08,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337368087] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:28:08,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:28:08,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 11] total 20 [2024-09-11 20:28:08,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429058832] [2024-09-11 20:28:08,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:28:08,957 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-11 20:28:08,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:28:08,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-11 20:28:08,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2024-09-11 20:28:08,961 INFO L87 Difference]: Start difference. First operand 99 states and 161 transitions. Second operand has 20 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 20 states have internal predecessors, (59), 14 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (18), 7 states have call predecessors, (18), 14 states have call successors, (18) [2024-09-11 20:28:09,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:28:09,310 INFO L93 Difference]: Finished difference Result 248 states and 485 transitions. [2024-09-11 20:28:09,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-11 20:28:09,311 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 20 states have internal predecessors, (59), 14 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (18), 7 states have call predecessors, (18), 14 states have call successors, (18) Word has length 50 [2024-09-11 20:28:09,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:28:09,314 INFO L225 Difference]: With dead ends: 248 [2024-09-11 20:28:09,314 INFO L226 Difference]: Without dead ends: 151 [2024-09-11 20:28:09,316 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 106 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702 [2024-09-11 20:28:09,317 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 48 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-11 20:28:09,317 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 239 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-11 20:28:09,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-09-11 20:28:09,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 108. [2024-09-11 20:28:09,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 70 states have (on average 1.2285714285714286) internal successors, (86), 71 states have internal predecessors, (86), 24 states have call successors, (24), 9 states have call predecessors, (24), 13 states have return successors, (66), 27 states have call predecessors, (66), 24 states have call successors, (66) [2024-09-11 20:28:09,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 176 transitions. [2024-09-11 20:28:09,350 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 176 transitions. Word has length 50 [2024-09-11 20:28:09,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:28:09,350 INFO L474 AbstractCegarLoop]: Abstraction has 108 states and 176 transitions. [2024-09-11 20:28:09,350 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 20 states have internal predecessors, (59), 14 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (18), 7 states have call predecessors, (18), 14 states have call successors, (18) [2024-09-11 20:28:09,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:09,351 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 176 transitions. [2024-09-11 20:28:09,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-09-11 20:28:09,354 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:28:09,354 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] [2024-09-11 20:28:09,370 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-11 20:28:09,554 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 [2024-09-11 20:28:09,555 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:28:09,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:09,555 INFO L85 PathProgramCache]: Analyzing trace with hash -110138383, now seen corresponding path program 1 times [2024-09-11 20:28:09,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:28:09,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982776515] [2024-09-11 20:28:09,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:09,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:28:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:09,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-11 20:28:09,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:09,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:09,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:09,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:09,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:09,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:09,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:09,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:09,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:09,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-11 20:28:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:09,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:09,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:09,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:09,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:09,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:09,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:09,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:09,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:09,912 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 44 proven. 79 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-09-11 20:28:09,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:28:09,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982776515] [2024-09-11 20:28:09,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982776515] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:28:09,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053605033] [2024-09-11 20:28:09,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:09,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:28:09,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:28:09,914 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-11 20:28:09,916 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-11 20:28:09,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:09,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-11 20:28:09,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:28:10,124 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 17 proven. 119 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-09-11 20:28:10,124 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:28:10,966 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 17 proven. 129 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-09-11 20:28:10,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053605033] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:28:10,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:28:10,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 13] total 24 [2024-09-11 20:28:10,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076447757] [2024-09-11 20:28:10,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:28:10,967 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-11 20:28:10,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:28:10,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-11 20:28:10,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2024-09-11 20:28:10,968 INFO L87 Difference]: Start difference. First operand 108 states and 176 transitions. Second operand has 24 states, 22 states have (on average 3.409090909090909) internal successors, (75), 24 states have internal predecessors, (75), 18 states have call successors, (23), 1 states have call predecessors, (23), 9 states have return successors, (27), 11 states have call predecessors, (27), 18 states have call successors, (27) [2024-09-11 20:28:11,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:28:11,484 INFO L93 Difference]: Finished difference Result 252 states and 490 transitions. [2024-09-11 20:28:11,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-11 20:28:11,485 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 3.409090909090909) internal successors, (75), 24 states have internal predecessors, (75), 18 states have call successors, (23), 1 states have call predecessors, (23), 9 states have return successors, (27), 11 states have call predecessors, (27), 18 states have call successors, (27) Word has length 106 [2024-09-11 20:28:11,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:28:11,487 INFO L225 Difference]: With dead ends: 252 [2024-09-11 20:28:11,487 INFO L226 Difference]: Without dead ends: 104 [2024-09-11 20:28:11,491 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 224 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=221, Invalid=1039, Unknown=0, NotChecked=0, Total=1260 [2024-09-11 20:28:11,493 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 50 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-11 20:28:11,493 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 335 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-11 20:28:11,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-09-11 20:28:11,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 87. [2024-09-11 20:28:11,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 58 states have (on average 1.1896551724137931) internal successors, (69), 59 states have internal predecessors, (69), 16 states have call successors, (16), 8 states have call predecessors, (16), 12 states have return successors, (38), 19 states have call predecessors, (38), 16 states have call successors, (38) [2024-09-11 20:28:11,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 123 transitions. [2024-09-11 20:28:11,509 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 123 transitions. Word has length 106 [2024-09-11 20:28:11,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:28:11,509 INFO L474 AbstractCegarLoop]: Abstraction has 87 states and 123 transitions. [2024-09-11 20:28:11,509 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 3.409090909090909) internal successors, (75), 24 states have internal predecessors, (75), 18 states have call successors, (23), 1 states have call predecessors, (23), 9 states have return successors, (27), 11 states have call predecessors, (27), 18 states have call successors, (27) [2024-09-11 20:28:11,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:11,510 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 123 transitions. [2024-09-11 20:28:11,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-09-11 20:28:11,511 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:28:11,511 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:28:11,528 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-11 20:28:11,715 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 [2024-09-11 20:28:11,716 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:28:11,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:11,716 INFO L85 PathProgramCache]: Analyzing trace with hash -316020965, now seen corresponding path program 1 times [2024-09-11 20:28:11,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:28:11,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726110588] [2024-09-11 20:28:11,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:11,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:28:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:11,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-11 20:28:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:11,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:11,918 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:11,954 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:12,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:12,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:12,056 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:12,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:12,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:12,077 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-11 20:28:12,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:12,084 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:12,087 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:12,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:12,089 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:12,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:12,091 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:12,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-11 20:28:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:12,099 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:12,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:12,104 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:12,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:12,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:12,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:12,108 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 66 proven. 113 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-09-11 20:28:12,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:28:12,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726110588] [2024-09-11 20:28:12,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726110588] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:28:12,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352326156] [2024-09-11 20:28:12,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:12,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:28:12,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:28:12,111 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-11 20:28:12,112 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-11 20:28:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:12,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-11 20:28:12,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:28:12,319 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 29 proven. 182 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2024-09-11 20:28:12,319 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:28:13,365 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 29 proven. 198 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2024-09-11 20:28:13,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352326156] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:28:13,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:28:13,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 15] total 26 [2024-09-11 20:28:13,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267818841] [2024-09-11 20:28:13,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:28:13,366 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-11 20:28:13,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:28:13,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-11 20:28:13,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2024-09-11 20:28:13,367 INFO L87 Difference]: Start difference. First operand 87 states and 123 transitions. Second operand has 26 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 26 states have internal predecessors, (82), 20 states have call successors, (25), 1 states have call predecessors, (25), 10 states have return successors, (32), 12 states have call predecessors, (32), 20 states have call successors, (32) [2024-09-11 20:28:13,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:28:13,891 INFO L93 Difference]: Finished difference Result 225 states and 391 transitions. [2024-09-11 20:28:13,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-11 20:28:13,892 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 26 states have internal predecessors, (82), 20 states have call successors, (25), 1 states have call predecessors, (25), 10 states have return successors, (32), 12 states have call predecessors, (32), 20 states have call successors, (32) Word has length 133 [2024-09-11 20:28:13,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:28:13,894 INFO L225 Difference]: With dead ends: 225 [2024-09-11 20:28:13,894 INFO L226 Difference]: Without dead ends: 127 [2024-09-11 20:28:13,896 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 284 SyntacticMatches, 6 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=275, Invalid=1285, Unknown=0, NotChecked=0, Total=1560 [2024-09-11 20:28:13,896 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 66 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-11 20:28:13,897 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 383 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-11 20:28:13,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-09-11 20:28:13,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 107. [2024-09-11 20:28:13,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 72 states have (on average 1.2222222222222223) internal successors, (88), 73 states have internal predecessors, (88), 20 states have call successors, (20), 11 states have call predecessors, (20), 14 states have return successors, (51), 22 states have call predecessors, (51), 20 states have call successors, (51) [2024-09-11 20:28:13,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 159 transitions. [2024-09-11 20:28:13,920 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 159 transitions. Word has length 133 [2024-09-11 20:28:13,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:28:13,920 INFO L474 AbstractCegarLoop]: Abstraction has 107 states and 159 transitions. [2024-09-11 20:28:13,920 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 26 states have internal predecessors, (82), 20 states have call successors, (25), 1 states have call predecessors, (25), 10 states have return successors, (32), 12 states have call predecessors, (32), 20 states have call successors, (32) [2024-09-11 20:28:13,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:13,921 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 159 transitions. [2024-09-11 20:28:13,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-09-11 20:28:13,923 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:28:13,924 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] [2024-09-11 20:28:13,942 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-11 20:28:14,124 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 [2024-09-11 20:28:14,125 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:28:14,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:14,125 INFO L85 PathProgramCache]: Analyzing trace with hash -895030172, now seen corresponding path program 2 times [2024-09-11 20:28:14,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:28:14,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000975] [2024-09-11 20:28:14,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:14,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:28:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,292 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-11 20:28:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,443 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,724 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,739 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,743 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-11 20:28:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,751 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,755 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-11 20:28:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,769 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:14,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:14,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:14,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 160 proven. 267 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2024-09-11 20:28:14,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:28:14,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000975] [2024-09-11 20:28:14,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000975] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:28:14,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238125777] [2024-09-11 20:28:14,800 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-11 20:28:14,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:28:14,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:28:14,802 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-11 20:28:14,804 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-11 20:28:14,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-11 20:28:14,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-11 20:28:14,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-11 20:28:14,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:28:15,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 70 proven. 425 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2024-09-11 20:28:15,063 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:28:16,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 70 proven. 449 refuted. 0 times theorem prover too weak. 885 trivial. 0 not checked. [2024-09-11 20:28:16,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238125777] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:28:16,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:28:16,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 17] total 27 [2024-09-11 20:28:16,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104602533] [2024-09-11 20:28:16,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:28:16,658 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-11 20:28:16,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:28:16,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-11 20:28:16,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=586, Unknown=0, NotChecked=0, Total=702 [2024-09-11 20:28:16,659 INFO L87 Difference]: Start difference. First operand 107 states and 159 transitions. Second operand has 27 states, 26 states have (on average 3.423076923076923) internal successors, (89), 27 states have internal predecessors, (89), 21 states have call successors, (27), 1 states have call predecessors, (27), 11 states have return successors, (36), 14 states have call predecessors, (36), 21 states have call successors, (36) [2024-09-11 20:28:17,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:28:17,142 INFO L93 Difference]: Finished difference Result 250 states and 428 transitions. [2024-09-11 20:28:17,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-11 20:28:17,143 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.423076923076923) internal successors, (89), 27 states have internal predecessors, (89), 21 states have call successors, (27), 1 states have call predecessors, (27), 11 states have return successors, (36), 14 states have call predecessors, (36), 21 states have call successors, (36) Word has length 227 [2024-09-11 20:28:17,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:28:17,147 INFO L225 Difference]: With dead ends: 250 [2024-09-11 20:28:17,147 INFO L226 Difference]: Without dead ends: 152 [2024-09-11 20:28:17,149 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 498 SyntacticMatches, 8 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=339, Invalid=1553, Unknown=0, NotChecked=0, Total=1892 [2024-09-11 20:28:17,150 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 86 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-11 20:28:17,151 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 254 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-11 20:28:17,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-09-11 20:28:17,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 139. [2024-09-11 20:28:17,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 96 states have (on average 1.25) internal successors, (120), 95 states have internal predecessors, (120), 26 states have call successors, (26), 17 states have call predecessors, (26), 16 states have return successors, (71), 26 states have call predecessors, (71), 26 states have call successors, (71) [2024-09-11 20:28:17,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 217 transitions. [2024-09-11 20:28:17,189 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 217 transitions. Word has length 227 [2024-09-11 20:28:17,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:28:17,190 INFO L474 AbstractCegarLoop]: Abstraction has 139 states and 217 transitions. [2024-09-11 20:28:17,190 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.423076923076923) internal successors, (89), 27 states have internal predecessors, (89), 21 states have call successors, (27), 1 states have call predecessors, (27), 11 states have return successors, (36), 14 states have call predecessors, (36), 21 states have call successors, (36) [2024-09-11 20:28:17,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:17,191 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 217 transitions. [2024-09-11 20:28:17,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-09-11 20:28:17,198 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:28:17,198 INFO L216 NwaCegarLoop]: trace histogram [26, 26, 25, 25, 21, 19, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 8, 7, 7, 4, 1, 1, 1, 1, 1, 1] [2024-09-11 20:28:17,214 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-11 20:28:17,398 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 [2024-09-11 20:28:17,399 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:28:17,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:17,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1237561161, now seen corresponding path program 3 times [2024-09-11 20:28:17,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:28:17,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613602520] [2024-09-11 20:28:17,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:17,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:28:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:17,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-11 20:28:17,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:17,935 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,298 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,341 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,343 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,349 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-11 20:28:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,493 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,494 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,496 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,498 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-11 20:28:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-09-11 20:28:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,537 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,555 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:18,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,557 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:18,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:18,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:18,592 INFO L134 CoverageAnalysis]: Checked inductivity of 3457 backedges. 258 proven. 518 refuted. 0 times theorem prover too weak. 2681 trivial. 0 not checked. [2024-09-11 20:28:18,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:28:18,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613602520] [2024-09-11 20:28:18,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613602520] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:28:18,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824902773] [2024-09-11 20:28:18,593 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-11 20:28:18,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:28:18,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:28:18,595 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-11 20:28:18,596 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-11 20:28:18,716 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-09-11 20:28:18,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-11 20:28:18,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-11 20:28:18,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:28:18,815 INFO L134 CoverageAnalysis]: Checked inductivity of 3457 backedges. 675 proven. 33 refuted. 0 times theorem prover too weak. 2749 trivial. 0 not checked. [2024-09-11 20:28:18,816 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:28:19,907 INFO L134 CoverageAnalysis]: Checked inductivity of 3457 backedges. 675 proven. 35 refuted. 0 times theorem prover too weak. 2747 trivial. 0 not checked. [2024-09-11 20:28:19,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824902773] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:28:19,908 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:28:19,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 13] total 23 [2024-09-11 20:28:19,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223517071] [2024-09-11 20:28:19,909 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:28:19,910 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-11 20:28:19,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:28:19,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-11 20:28:19,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2024-09-11 20:28:19,912 INFO L87 Difference]: Start difference. First operand 139 states and 217 transitions. Second operand has 23 states, 22 states have (on average 3.590909090909091) internal successors, (79), 23 states have internal predecessors, (79), 15 states have call successors, (24), 1 states have call predecessors, (24), 7 states have return successors, (29), 11 states have call predecessors, (29), 15 states have call successors, (29) [2024-09-11 20:28:20,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:28:20,199 INFO L93 Difference]: Finished difference Result 279 states and 452 transitions. [2024-09-11 20:28:20,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-11 20:28:20,200 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.590909090909091) internal successors, (79), 23 states have internal predecessors, (79), 15 states have call successors, (24), 1 states have call predecessors, (24), 7 states have return successors, (29), 11 states have call predecessors, (29), 15 states have call successors, (29) Word has length 349 [2024-09-11 20:28:20,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:28:20,203 INFO L225 Difference]: With dead ends: 279 [2024-09-11 20:28:20,203 INFO L226 Difference]: Without dead ends: 149 [2024-09-11 20:28:20,205 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 819 GetRequests, 785 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=718, Unknown=0, NotChecked=0, Total=870 [2024-09-11 20:28:20,206 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 33 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-11 20:28:20,206 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 249 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-11 20:28:20,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-09-11 20:28:20,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 143. [2024-09-11 20:28:20,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 100 states have (on average 1.16) internal successors, (116), 97 states have internal predecessors, (116), 26 states have call successors, (26), 19 states have call predecessors, (26), 16 states have return successors, (68), 26 states have call predecessors, (68), 26 states have call successors, (68) [2024-09-11 20:28:20,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 210 transitions. [2024-09-11 20:28:20,234 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 210 transitions. Word has length 349 [2024-09-11 20:28:20,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:28:20,234 INFO L474 AbstractCegarLoop]: Abstraction has 143 states and 210 transitions. [2024-09-11 20:28:20,235 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.590909090909091) internal successors, (79), 23 states have internal predecessors, (79), 15 states have call successors, (24), 1 states have call predecessors, (24), 7 states have return successors, (29), 11 states have call predecessors, (29), 15 states have call successors, (29) [2024-09-11 20:28:20,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:20,235 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 210 transitions. [2024-09-11 20:28:20,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-09-11 20:28:20,241 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:28:20,241 INFO L216 NwaCegarLoop]: trace histogram [27, 27, 26, 26, 22, 21, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 9, 8, 5, 5, 1, 1, 1, 1, 1, 1] [2024-09-11 20:28:20,258 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-11 20:28:20,445 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 [2024-09-11 20:28:20,446 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:28:20,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:20,447 INFO L85 PathProgramCache]: Analyzing trace with hash 104430586, now seen corresponding path program 4 times [2024-09-11 20:28:20,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:28:20,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860142964] [2024-09-11 20:28:20,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:20,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:28:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:20,751 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-11 20:28:20,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,183 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,404 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:21,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,466 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,474 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-11 20:28:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:21,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-11 20:28:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,608 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:21,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-09-11 20:28:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:21,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,659 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:21,665 INFO L134 CoverageAnalysis]: Checked inductivity of 3769 backedges. 315 proven. 663 refuted. 0 times theorem prover too weak. 2791 trivial. 0 not checked. [2024-09-11 20:28:21,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:28:21,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860142964] [2024-09-11 20:28:21,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860142964] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:28:21,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123479266] [2024-09-11 20:28:21,667 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-11 20:28:21,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:28:21,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:28:21,669 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-11 20:28:21,671 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-11 20:28:21,829 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-11 20:28:21,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-11 20:28:21,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-11 20:28:21,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:28:21,994 INFO L134 CoverageAnalysis]: Checked inductivity of 3769 backedges. 2031 proven. 176 refuted. 0 times theorem prover too weak. 1562 trivial. 0 not checked. [2024-09-11 20:28:21,995 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:28:24,362 INFO L134 CoverageAnalysis]: Checked inductivity of 3769 backedges. 290 proven. 899 refuted. 0 times theorem prover too weak. 2580 trivial. 0 not checked. [2024-09-11 20:28:24,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123479266] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:28:24,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:28:24,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 19] total 32 [2024-09-11 20:28:24,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831535338] [2024-09-11 20:28:24,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:28:24,364 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-11 20:28:24,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:28:24,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-11 20:28:24,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=838, Unknown=0, NotChecked=0, Total=992 [2024-09-11 20:28:24,366 INFO L87 Difference]: Start difference. First operand 143 states and 210 transitions. Second operand has 32 states, 31 states have (on average 3.6129032258064515) internal successors, (112), 32 states have internal predecessors, (112), 26 states have call successors, (37), 2 states have call predecessors, (37), 11 states have return successors, (44), 15 states have call predecessors, (44), 26 states have call successors, (44) [2024-09-11 20:28:24,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:28:24,842 INFO L93 Difference]: Finished difference Result 297 states and 501 transitions. [2024-09-11 20:28:24,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-11 20:28:24,843 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.6129032258064515) internal successors, (112), 32 states have internal predecessors, (112), 26 states have call successors, (37), 2 states have call predecessors, (37), 11 states have return successors, (44), 15 states have call predecessors, (44), 26 states have call successors, (44) Word has length 364 [2024-09-11 20:28:24,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:28:24,846 INFO L225 Difference]: With dead ends: 297 [2024-09-11 20:28:24,846 INFO L226 Difference]: Without dead ends: 159 [2024-09-11 20:28:24,848 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 859 GetRequests, 810 SyntacticMatches, 9 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=288, Invalid=1434, Unknown=0, NotChecked=0, Total=1722 [2024-09-11 20:28:24,849 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 47 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-11 20:28:24,849 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 389 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-11 20:28:24,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-09-11 20:28:24,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 152. [2024-09-11 20:28:24,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 107 states have (on average 1.1121495327102804) internal successors, (119), 103 states have internal predecessors, (119), 28 states have call successors, (28), 22 states have call predecessors, (28), 16 states have return successors, (71), 26 states have call predecessors, (71), 28 states have call successors, (71) [2024-09-11 20:28:24,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 218 transitions. [2024-09-11 20:28:24,868 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 218 transitions. Word has length 364 [2024-09-11 20:28:24,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:28:24,869 INFO L474 AbstractCegarLoop]: Abstraction has 152 states and 218 transitions. [2024-09-11 20:28:24,869 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.6129032258064515) internal successors, (112), 32 states have internal predecessors, (112), 26 states have call successors, (37), 2 states have call predecessors, (37), 11 states have return successors, (44), 15 states have call predecessors, (44), 26 states have call successors, (44) [2024-09-11 20:28:24,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:24,869 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 218 transitions. [2024-09-11 20:28:24,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2024-09-11 20:28:24,877 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:28:24,877 INFO L216 NwaCegarLoop]: trace histogram [37, 37, 36, 36, 30, 29, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 12, 11, 8, 6, 1, 1, 1, 1, 1, 1] [2024-09-11 20:28:24,895 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-11 20:28:25,078 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 [2024-09-11 20:28:25,078 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:28:25,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:25,079 INFO L85 PathProgramCache]: Analyzing trace with hash -468715576, now seen corresponding path program 5 times [2024-09-11 20:28:25,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:28:25,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490063716] [2024-09-11 20:28:25,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:25,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:28:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:25,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-11 20:28:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,273 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,369 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,469 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,472 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:26,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,476 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:26,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,526 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,529 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,536 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-11 20:28:26,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,554 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,558 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-11 20:28:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:26,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:26,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:26,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:26,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:26,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-11 20:28:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-09-11 20:28:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,887 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,892 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,950 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,952 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:26,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,955 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,961 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:26,967 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-11 20:28:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:27,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:27,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:27,056 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:27,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:27,064 INFO L134 CoverageAnalysis]: Checked inductivity of 7249 backedges. 1274 proven. 851 refuted. 0 times theorem prover too weak. 5124 trivial. 0 not checked. [2024-09-11 20:28:27,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:28:27,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490063716] [2024-09-11 20:28:27,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490063716] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:28:27,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008464980] [2024-09-11 20:28:27,065 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-11 20:28:27,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:28:27,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:28:27,067 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-11 20:28:27,069 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-11 20:28:27,310 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2024-09-11 20:28:27,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-11 20:28:27,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-11 20:28:27,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:28:27,555 INFO L134 CoverageAnalysis]: Checked inductivity of 7249 backedges. 3752 proven. 658 refuted. 0 times theorem prover too weak. 2839 trivial. 0 not checked. [2024-09-11 20:28:27,556 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:28:31,017 INFO L134 CoverageAnalysis]: Checked inductivity of 7249 backedges. 784 proven. 1345 refuted. 0 times theorem prover too weak. 5120 trivial. 0 not checked. [2024-09-11 20:28:31,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008464980] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:28:31,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:28:31,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 18, 25] total 48 [2024-09-11 20:28:31,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948297696] [2024-09-11 20:28:31,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:28:31,019 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-09-11 20:28:31,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:28:31,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-09-11 20:28:31,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=1953, Unknown=0, NotChecked=0, Total=2256 [2024-09-11 20:28:31,021 INFO L87 Difference]: Start difference. First operand 152 states and 218 transitions. Second operand has 48 states, 47 states have (on average 3.106382978723404) internal successors, (146), 48 states have internal predecessors, (146), 37 states have call successors, (51), 2 states have call predecessors, (51), 17 states have return successors, (66), 30 states have call predecessors, (66), 37 states have call successors, (66) [2024-09-11 20:28:32,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:28:32,307 INFO L93 Difference]: Finished difference Result 385 states and 619 transitions. [2024-09-11 20:28:32,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-09-11 20:28:32,308 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 3.106382978723404) internal successors, (146), 48 states have internal predecessors, (146), 37 states have call successors, (51), 2 states have call predecessors, (51), 17 states have return successors, (66), 30 states have call predecessors, (66), 37 states have call successors, (66) Word has length 500 [2024-09-11 20:28:32,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:28:32,312 INFO L225 Difference]: With dead ends: 385 [2024-09-11 20:28:32,312 INFO L226 Difference]: Without dead ends: 217 [2024-09-11 20:28:32,315 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1199 GetRequests, 1113 SyntacticMatches, 12 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2066 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=777, Invalid=4923, Unknown=0, NotChecked=0, Total=5700 [2024-09-11 20:28:32,316 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 131 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 1816 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 1963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-11 20:28:32,316 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1031 Invalid, 1963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1816 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-11 20:28:32,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-09-11 20:28:32,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 197. [2024-09-11 20:28:32,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 141 states have (on average 1.070921985815603) internal successors, (151), 135 states have internal predecessors, (151), 38 states have call successors, (38), 32 states have call predecessors, (38), 17 states have return successors, (92), 29 states have call predecessors, (92), 38 states have call successors, (92) [2024-09-11 20:28:32,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 281 transitions. [2024-09-11 20:28:32,343 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 281 transitions. Word has length 500 [2024-09-11 20:28:32,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:28:32,344 INFO L474 AbstractCegarLoop]: Abstraction has 197 states and 281 transitions. [2024-09-11 20:28:32,344 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 3.106382978723404) internal successors, (146), 48 states have internal predecessors, (146), 37 states have call successors, (51), 2 states have call predecessors, (51), 17 states have return successors, (66), 30 states have call predecessors, (66), 37 states have call successors, (66) [2024-09-11 20:28:32,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:32,344 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 281 transitions. [2024-09-11 20:28:32,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 869 [2024-09-11 20:28:32,350 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:28:32,350 INFO L216 NwaCegarLoop]: trace histogram [69, 69, 58, 58, 53, 50, 34, 34, 34, 34, 34, 34, 34, 29, 29, 29, 29, 29, 29, 29, 24, 16, 16, 8, 1, 1, 1, 1, 1, 1] [2024-09-11 20:28:32,366 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-11 20:28:32,554 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 [2024-09-11 20:28:32,555 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:28:32,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:32,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1188443349, now seen corresponding path program 6 times [2024-09-11 20:28:32,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:28:32,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349092062] [2024-09-11 20:28:32,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:32,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:28:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:33,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-11 20:28:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,207 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,612 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:34,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,667 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:34,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,794 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:34,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:34,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:34,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-11 20:28:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,919 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,922 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,975 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,978 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:34,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:34,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:34,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:34,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:34,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-11 20:28:35,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,048 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,053 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,058 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,062 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,065 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-11 20:28:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,081 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,084 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,087 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,088 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,089 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,090 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,095 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,100 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,107 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:35,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,110 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2024-09-11 20:28:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,185 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,209 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,220 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,233 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,236 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,238 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:35,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,239 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,240 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,245 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,247 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,256 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:35,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,263 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,265 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-11 20:28:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,282 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,287 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,290 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,292 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,300 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,301 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,308 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-11 20:28:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,340 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,370 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,372 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:35,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,376 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,379 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,386 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:35,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-11 20:28:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,403 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,434 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,437 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:35,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:35,475 INFO L134 CoverageAnalysis]: Checked inductivity of 22467 backedges. 493 proven. 2716 refuted. 0 times theorem prover too weak. 19258 trivial. 0 not checked. [2024-09-11 20:28:35,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:28:35,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349092062] [2024-09-11 20:28:35,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349092062] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:28:35,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263013568] [2024-09-11 20:28:35,476 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-11 20:28:35,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:28:35,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:28:35,478 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-11 20:28:35,480 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-11 20:28:35,762 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2024-09-11 20:28:35,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-11 20:28:35,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-11 20:28:35,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:28:35,956 INFO L134 CoverageAnalysis]: Checked inductivity of 22467 backedges. 553 proven. 2081 refuted. 0 times theorem prover too weak. 19833 trivial. 0 not checked. [2024-09-11 20:28:35,956 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:28:39,377 INFO L134 CoverageAnalysis]: Checked inductivity of 22467 backedges. 555 proven. 2109 refuted. 0 times theorem prover too weak. 19803 trivial. 0 not checked. [2024-09-11 20:28:39,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263013568] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:28:39,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:28:39,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 13, 19] total 37 [2024-09-11 20:28:39,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133996909] [2024-09-11 20:28:39,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:28:39,380 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-09-11 20:28:39,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:28:39,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-09-11 20:28:39,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=1138, Unknown=0, NotChecked=0, Total=1332 [2024-09-11 20:28:39,382 INFO L87 Difference]: Start difference. First operand 197 states and 281 transitions. Second operand has 37 states, 36 states have (on average 3.0) internal successors, (108), 37 states have internal predecessors, (108), 27 states have call successors, (35), 1 states have call predecessors, (35), 16 states have return successors, (48), 24 states have call predecessors, (48), 27 states have call successors, (48) [2024-09-11 20:28:40,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:28:40,274 INFO L93 Difference]: Finished difference Result 435 states and 684 transitions. [2024-09-11 20:28:40,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-09-11 20:28:40,275 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 3.0) internal successors, (108), 37 states have internal predecessors, (108), 27 states have call successors, (35), 1 states have call predecessors, (35), 16 states have return successors, (48), 24 states have call predecessors, (48), 27 states have call successors, (48) Word has length 868 [2024-09-11 20:28:40,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:28:40,278 INFO L225 Difference]: With dead ends: 435 [2024-09-11 20:28:40,279 INFO L226 Difference]: Without dead ends: 197 [2024-09-11 20:28:40,282 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 2032 GetRequests, 1965 SyntacticMatches, 9 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1217 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=516, Invalid=3024, Unknown=0, NotChecked=0, Total=3540 [2024-09-11 20:28:40,282 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 87 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-11 20:28:40,283 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 630 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-11 20:28:40,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-09-11 20:28:40,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 169. [2024-09-11 20:28:40,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 120 states have (on average 1.0666666666666667) internal successors, (128), 115 states have internal predecessors, (128), 32 states have call successors, (32), 26 states have call predecessors, (32), 16 states have return successors, (48), 27 states have call predecessors, (48), 32 states have call successors, (48) [2024-09-11 20:28:40,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 208 transitions. [2024-09-11 20:28:40,305 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 208 transitions. Word has length 868 [2024-09-11 20:28:40,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:28:40,305 INFO L474 AbstractCegarLoop]: Abstraction has 169 states and 208 transitions. [2024-09-11 20:28:40,306 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 3.0) internal successors, (108), 37 states have internal predecessors, (108), 27 states have call successors, (35), 1 states have call predecessors, (35), 16 states have return successors, (48), 24 states have call predecessors, (48), 27 states have call successors, (48) [2024-09-11 20:28:40,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:40,306 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 208 transitions. [2024-09-11 20:28:40,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2024-09-11 20:28:40,309 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:28:40,309 INFO L216 NwaCegarLoop]: trace histogram [42, 42, 41, 41, 34, 33, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 14, 12, 8, 8, 1, 1, 1, 1, 1, 1] [2024-09-11 20:28:40,330 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-11 20:28:40,509 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 [2024-09-11 20:28:40,510 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:28:40,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:40,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1624531253, now seen corresponding path program 7 times [2024-09-11 20:28:40,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:28:40,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332423269] [2024-09-11 20:28:40,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:40,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:28:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-11 20:28:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:41,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:41,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,832 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:41,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:41,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,947 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:41,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,961 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,967 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:41,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:41,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,975 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:41,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,978 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-11 20:28:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,994 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:41,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-11 20:28:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,021 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,026 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:42,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:42,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:42,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-11 20:28:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,174 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,265 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,353 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:42,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,466 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,469 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-11 20:28:42,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,476 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,483 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:42,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:42,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-11 20:28:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,522 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,527 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,529 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:42,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,531 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,534 INFO L134 CoverageAnalysis]: Checked inductivity of 9413 backedges. 835 proven. 1688 refuted. 0 times theorem prover too weak. 6890 trivial. 0 not checked. [2024-09-11 20:28:42,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:28:42,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332423269] [2024-09-11 20:28:42,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332423269] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:28:42,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635195308] [2024-09-11 20:28:42,535 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-11 20:28:42,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:28:42,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:28:42,537 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-11 20:28:42,541 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-11 20:28:42,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:42,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-11 20:28:42,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:28:42,983 INFO L134 CoverageAnalysis]: Checked inductivity of 9413 backedges. 1038 proven. 628 refuted. 0 times theorem prover too weak. 7747 trivial. 0 not checked. [2024-09-11 20:28:42,983 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:28:45,666 INFO L134 CoverageAnalysis]: Checked inductivity of 9413 backedges. 1038 proven. 658 refuted. 0 times theorem prover too weak. 7717 trivial. 0 not checked. [2024-09-11 20:28:45,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635195308] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:28:45,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:28:45,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 13, 19] total 43 [2024-09-11 20:28:45,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208848702] [2024-09-11 20:28:45,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:28:45,667 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-09-11 20:28:45,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:28:45,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-09-11 20:28:45,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=1550, Unknown=0, NotChecked=0, Total=1806 [2024-09-11 20:28:45,669 INFO L87 Difference]: Start difference. First operand 169 states and 208 transitions. Second operand has 43 states, 42 states have (on average 2.6666666666666665) internal successors, (112), 43 states have internal predecessors, (112), 30 states have call successors, (37), 1 states have call predecessors, (37), 18 states have return successors, (52), 30 states have call predecessors, (52), 30 states have call successors, (52) [2024-09-11 20:28:46,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:28:46,601 INFO L93 Difference]: Finished difference Result 376 states and 485 transitions. [2024-09-11 20:28:46,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-09-11 20:28:46,601 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 2.6666666666666665) internal successors, (112), 43 states have internal predecessors, (112), 30 states have call successors, (37), 1 states have call predecessors, (37), 18 states have return successors, (52), 30 states have call predecessors, (52), 30 states have call successors, (52) Word has length 568 [2024-09-11 20:28:46,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:28:46,605 INFO L225 Difference]: With dead ends: 376 [2024-09-11 20:28:46,605 INFO L226 Difference]: Without dead ends: 238 [2024-09-11 20:28:46,608 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1360 GetRequests, 1277 SyntacticMatches, 9 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2012 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=784, Invalid=4916, Unknown=0, NotChecked=0, Total=5700 [2024-09-11 20:28:46,608 INFO L434 NwaCegarLoop]: 46 mSDtfsCounter, 127 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-11 20:28:46,609 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 638 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-11 20:28:46,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-09-11 20:28:46,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 211. [2024-09-11 20:28:46,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 150 states have (on average 1.0533333333333332) internal successors, (158), 145 states have internal predecessors, (158), 42 states have call successors, (42), 34 states have call predecessors, (42), 18 states have return successors, (62), 31 states have call predecessors, (62), 42 states have call successors, (62) [2024-09-11 20:28:46,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 262 transitions. [2024-09-11 20:28:46,635 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 262 transitions. Word has length 568 [2024-09-11 20:28:46,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:28:46,636 INFO L474 AbstractCegarLoop]: Abstraction has 211 states and 262 transitions. [2024-09-11 20:28:46,636 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 2.6666666666666665) internal successors, (112), 43 states have internal predecessors, (112), 30 states have call successors, (37), 1 states have call predecessors, (37), 18 states have return successors, (52), 30 states have call predecessors, (52), 30 states have call successors, (52) [2024-09-11 20:28:46,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:46,636 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 262 transitions. [2024-09-11 20:28:46,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-09-11 20:28:46,638 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:28:46,639 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] [2024-09-11 20:28:46,657 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-11 20:28:46,839 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 [2024-09-11 20:28:46,839 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:28:46,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:46,840 INFO L85 PathProgramCache]: Analyzing trace with hash -803303704, now seen corresponding path program 8 times [2024-09-11 20:28:46,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:28:46,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749672777] [2024-09-11 20:28:46,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:46,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:28:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-11 20:28:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,268 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,527 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,529 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:47,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,531 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:47,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:47,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,578 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-11 20:28:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-11 20:28:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,608 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,614 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:47,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:47,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:47,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:47,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-11 20:28:47,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,674 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,746 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:47,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:47,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:47,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:47,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:47,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:47,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:47,810 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 726 proven. 662 refuted. 0 times theorem prover too weak. 2982 trivial. 0 not checked. [2024-09-11 20:28:47,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:28:47,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749672777] [2024-09-11 20:28:47,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749672777] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:28:47,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439732272] [2024-09-11 20:28:47,811 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-11 20:28:47,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:28:47,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:28:47,816 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-11 20:28:47,819 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-11 20:28:48,069 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-11 20:28:48,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-11 20:28:48,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-11 20:28:48,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:28:48,163 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 655 proven. 176 refuted. 0 times theorem prover too weak. 3539 trivial. 0 not checked. [2024-09-11 20:28:48,164 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:28:49,602 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 659 proven. 188 refuted. 0 times theorem prover too weak. 3523 trivial. 0 not checked. [2024-09-11 20:28:49,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439732272] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:28:49,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:28:49,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 11, 15] total 34 [2024-09-11 20:28:49,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710264995] [2024-09-11 20:28:49,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:28:49,603 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-09-11 20:28:49,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:28:49,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-09-11 20:28:49,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=949, Unknown=0, NotChecked=0, Total=1122 [2024-09-11 20:28:49,604 INFO L87 Difference]: Start difference. First operand 211 states and 262 transitions. Second operand has 34 states, 33 states have (on average 2.8181818181818183) internal successors, (93), 34 states have internal predecessors, (93), 24 states have call successors, (31), 1 states have call predecessors, (31), 13 states have return successors, (42), 24 states have call predecessors, (42), 24 states have call successors, (42) [2024-09-11 20:28:50,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:28:50,108 INFO L93 Difference]: Finished difference Result 255 states and 314 transitions. [2024-09-11 20:28:50,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-09-11 20:28:50,109 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.8181818181818183) internal successors, (93), 34 states have internal predecessors, (93), 24 states have call successors, (31), 1 states have call predecessors, (31), 13 states have return successors, (42), 24 states have call predecessors, (42), 24 states have call successors, (42) Word has length 391 [2024-09-11 20:28:50,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:28:50,111 INFO L225 Difference]: With dead ends: 255 [2024-09-11 20:28:50,111 INFO L226 Difference]: Without dead ends: 243 [2024-09-11 20:28:50,112 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 931 GetRequests, 878 SyntacticMatches, 7 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=341, Invalid=1915, Unknown=0, NotChecked=0, Total=2256 [2024-09-11 20:28:50,113 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 86 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-11 20:28:50,113 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 482 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-11 20:28:50,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-09-11 20:28:50,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 207. [2024-09-11 20:28:50,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 147 states have (on average 1.054421768707483) internal successors, (155), 142 states have internal predecessors, (155), 41 states have call successors, (41), 33 states have call predecessors, (41), 18 states have return successors, (52), 31 states have call predecessors, (52), 41 states have call successors, (52) [2024-09-11 20:28:50,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 248 transitions. [2024-09-11 20:28:50,139 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 248 transitions. Word has length 391 [2024-09-11 20:28:50,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:28:50,139 INFO L474 AbstractCegarLoop]: Abstraction has 207 states and 248 transitions. [2024-09-11 20:28:50,140 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.8181818181818183) internal successors, (93), 34 states have internal predecessors, (93), 24 states have call successors, (31), 1 states have call predecessors, (31), 13 states have return successors, (42), 24 states have call predecessors, (42), 24 states have call successors, (42) [2024-09-11 20:28:50,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:50,140 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 248 transitions. [2024-09-11 20:28:50,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-09-11 20:28:50,142 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:28:50,142 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] [2024-09-11 20:28:50,160 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-11 20:28:50,342 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 [2024-09-11 20:28:50,343 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:28:50,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:28:50,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1278903223, now seen corresponding path program 9 times [2024-09-11 20:28:50,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:28:50,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566693583] [2024-09-11 20:28:50,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:28:50,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:28:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:52,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-11 20:28:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,146 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,750 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:54,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,197 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,271 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,291 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,331 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,336 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:55,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-11 20:28:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,582 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,614 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:55,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:55,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:55,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-11 20:28:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,923 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,954 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:55,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,967 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:55,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,971 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:55,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:55,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-09-11 20:28:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,274 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,360 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:56,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,369 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:56,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,386 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:28:56,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:56,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,437 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-11 20:28:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,526 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:28:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,535 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:28:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:28:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:28:56,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:28:56,557 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2024-09-11 20:28:56,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:28:56,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566693583] [2024-09-11 20:28:56,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566693583] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:28:56,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746004684] [2024-09-11 20:28:56,558 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-11 20:28:56,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:28:56,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:28:56,559 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-11 20:28:56,561 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-11 20:28:56,880 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2024-09-11 20:28:56,880 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-11 20:28:56,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 271 conjuncts are in the unsatisfiable core [2024-09-11 20:28:56,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:28:57,512 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2024-09-11 20:28:57,512 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:28:59,603 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2024-09-11 20:28:59,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746004684] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:28:59,604 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:28:59,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 52 [2024-09-11 20:28:59,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102761554] [2024-09-11 20:28:59,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:28:59,605 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-09-11 20:28:59,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:28:59,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-09-11 20:28:59,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=2527, Unknown=0, NotChecked=0, Total=2652 [2024-09-11 20:28:59,607 INFO L87 Difference]: Start difference. First operand 207 states and 248 transitions. Second operand has 52 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 27 states have internal predecessors, (62), 11 states have call successors, (13), 1 states have call predecessors, (13), 14 states have return successors, (35), 35 states have call predecessors, (35), 11 states have call successors, (35) [2024-09-11 20:29:00,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:29:00,168 INFO L93 Difference]: Finished difference Result 264 states and 341 transitions. [2024-09-11 20:29:00,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-11 20:29:00,169 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 27 states have internal predecessors, (62), 11 states have call successors, (13), 1 states have call predecessors, (13), 14 states have return successors, (35), 35 states have call predecessors, (35), 11 states have call successors, (35) Word has length 459 [2024-09-11 20:29:00,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:29:00,172 INFO L225 Difference]: With dead ends: 264 [2024-09-11 20:29:00,172 INFO L226 Difference]: Without dead ends: 257 [2024-09-11 20:29:00,173 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1187 GetRequests, 1137 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=125, Invalid=2527, Unknown=0, NotChecked=0, Total=2652 [2024-09-11 20:29:00,174 INFO L434 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 2629 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 1500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-11 20:29:00,174 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2700 Invalid, 1500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1500 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-11 20:29:00,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-09-11 20:29:00,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 252. [2024-09-11 20:29:00,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 174 states have (on average 1.0459770114942528) internal successors, (182), 169 states have internal predecessors, (182), 50 states have call successors, (50), 33 states have call predecessors, (50), 27 states have return successors, (97), 49 states have call predecessors, (97), 50 states have call successors, (97) [2024-09-11 20:29:00,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 329 transitions. [2024-09-11 20:29:00,209 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 329 transitions. Word has length 459 [2024-09-11 20:29:00,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:29:00,210 INFO L474 AbstractCegarLoop]: Abstraction has 252 states and 329 transitions. [2024-09-11 20:29:00,211 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 27 states have internal predecessors, (62), 11 states have call successors, (13), 1 states have call predecessors, (13), 14 states have return successors, (35), 35 states have call predecessors, (35), 11 states have call successors, (35) [2024-09-11 20:29:00,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:29:00,211 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 329 transitions. [2024-09-11 20:29:00,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-09-11 20:29:00,214 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:29:00,214 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] [2024-09-11 20:29:00,233 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-11 20:29:00,414 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 [2024-09-11 20:29:00,415 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:29:00,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:29:00,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1398747279, now seen corresponding path program 10 times [2024-09-11 20:29:00,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:29:00,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318557179] [2024-09-11 20:29:00,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:29:00,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:29:00,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:00,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-11 20:29:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:00,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,068 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,086 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,130 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,141 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:29:01,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:29:01,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,161 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-11 20:29:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,192 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:29:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-11 20:29:01,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,202 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,203 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,204 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,204 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:29:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,205 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:29:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,206 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,207 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,207 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-09-11 20:29:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,214 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,217 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,220 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-11 20:29:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-11 20:29:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-11 20:29:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,231 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,232 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,233 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:29:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,235 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-09-11 20:29:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,253 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,263 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,268 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,274 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,276 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:29:01,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,277 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:29:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,279 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,280 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:01,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:29:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,284 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,286 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,287 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,288 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:29:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-11 20:29:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,301 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,302 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,303 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:29:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,304 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:29:01,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,306 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,307 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:01,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:01,309 INFO L134 CoverageAnalysis]: Checked inductivity of 6137 backedges. 254 proven. 1039 refuted. 0 times theorem prover too weak. 4844 trivial. 0 not checked. [2024-09-11 20:29:01,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:29:01,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318557179] [2024-09-11 20:29:01,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318557179] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:29:01,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976986850] [2024-09-11 20:29:01,310 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-11 20:29:01,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:29:01,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:29:01,312 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-11 20:29:01,314 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-11 20:29:01,564 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-11 20:29:01,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-11 20:29:01,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-11 20:29:01,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:29:01,653 INFO L134 CoverageAnalysis]: Checked inductivity of 6137 backedges. 1740 proven. 32 refuted. 0 times theorem prover too weak. 4365 trivial. 0 not checked. [2024-09-11 20:29:01,653 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:29:03,087 INFO L134 CoverageAnalysis]: Checked inductivity of 6137 backedges. 252 proven. 1012 refuted. 0 times theorem prover too weak. 4873 trivial. 0 not checked. [2024-09-11 20:29:03,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976986850] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:29:03,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:29:03,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 13] total 25 [2024-09-11 20:29:03,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552971931] [2024-09-11 20:29:03,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:29:03,088 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-11 20:29:03,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:29:03,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-11 20:29:03,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=509, Unknown=0, NotChecked=0, Total=600 [2024-09-11 20:29:03,089 INFO L87 Difference]: Start difference. First operand 252 states and 329 transitions. Second operand has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 17 states have call successors, (28), 2 states have call predecessors, (28), 8 states have return successors, (33), 11 states have call predecessors, (33), 17 states have call successors, (33) [2024-09-11 20:29:03,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:29:03,375 INFO L93 Difference]: Finished difference Result 439 states and 578 transitions. [2024-09-11 20:29:03,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-11 20:29:03,375 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 17 states have call successors, (28), 2 states have call predecessors, (28), 8 states have return successors, (33), 11 states have call predecessors, (33), 17 states have call successors, (33) Word has length 461 [2024-09-11 20:29:03,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:29:03,378 INFO L225 Difference]: With dead ends: 439 [2024-09-11 20:29:03,378 INFO L226 Difference]: Without dead ends: 165 [2024-09-11 20:29:03,380 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1081 GetRequests, 1043 SyntacticMatches, 6 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=194, Invalid=928, Unknown=0, NotChecked=0, Total=1122 [2024-09-11 20:29:03,380 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 72 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-11 20:29:03,381 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 243 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-11 20:29:03,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-09-11 20:29:03,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 163. [2024-09-11 20:29:03,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 116 states have (on average 1.0603448275862069) internal successors, (123), 112 states have internal predecessors, (123), 31 states have call successors, (31), 26 states have call predecessors, (31), 15 states have return successors, (34), 24 states have call predecessors, (34), 31 states have call successors, (34) [2024-09-11 20:29:03,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 188 transitions. [2024-09-11 20:29:03,400 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 188 transitions. Word has length 461 [2024-09-11 20:29:03,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:29:03,401 INFO L474 AbstractCegarLoop]: Abstraction has 163 states and 188 transitions. [2024-09-11 20:29:03,401 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 25 states have internal predecessors, (91), 17 states have call successors, (28), 2 states have call predecessors, (28), 8 states have return successors, (33), 11 states have call predecessors, (33), 17 states have call successors, (33) [2024-09-11 20:29:03,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:29:03,401 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 188 transitions. [2024-09-11 20:29:03,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2024-09-11 20:29:03,404 INFO L208 NwaCegarLoop]: Found error trace [2024-09-11 20:29:03,404 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] [2024-09-11 20:29:03,422 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-09-11 20:29:03,604 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:29:03,605 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-11 20:29:03,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:29:03,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1645000952, now seen corresponding path program 11 times [2024-09-11 20:29:03,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-11 20:29:03,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207433681] [2024-09-11 20:29:03,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-11 20:29:03,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-11 20:29:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-11 20:29:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,238 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:29:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,582 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:29:04,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:29:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:29:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-11 20:29:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:29:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:29:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-11 20:29:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,744 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,794 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:29:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:29:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-11 20:29:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,823 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:29:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,823 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:29:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,827 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:29:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,832 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:29:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-09-11 20:29:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,845 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,854 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,858 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,858 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:29:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:29:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:04,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-11 20:29:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:29:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-11 20:29:04,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,874 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,874 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-11 20:29:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,875 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-09-11 20:29:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,876 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-09-11 20:29:04,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-11 20:29:04,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-11 20:29:04,878 INFO L134 CoverageAnalysis]: Checked inductivity of 8086 backedges. 575 proven. 1278 refuted. 0 times theorem prover too weak. 6233 trivial. 0 not checked. [2024-09-11 20:29:04,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-11 20:29:04,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207433681] [2024-09-11 20:29:04,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207433681] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-11 20:29:04,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280103841] [2024-09-11 20:29:04,879 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-11 20:29:04,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:29:04,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-11 20:29:04,881 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-11 20:29:04,882 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-11 20:29:05,160 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2024-09-11 20:29:05,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-11 20:29:05,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-11 20:29:05,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-11 20:29:05,286 INFO L134 CoverageAnalysis]: Checked inductivity of 8086 backedges. 4517 proven. 174 refuted. 0 times theorem prover too weak. 3395 trivial. 0 not checked. [2024-09-11 20:29:05,286 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-11 20:29:07,102 INFO L134 CoverageAnalysis]: Checked inductivity of 8086 backedges. 609 proven. 1035 refuted. 0 times theorem prover too weak. 6442 trivial. 0 not checked. [2024-09-11 20:29:07,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280103841] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-11 20:29:07,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-11 20:29:07,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 14, 17] total 36 [2024-09-11 20:29:07,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184731611] [2024-09-11 20:29:07,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-11 20:29:07,103 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-11 20:29:07,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-11 20:29:07,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-11 20:29:07,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1080, Unknown=0, NotChecked=0, Total=1260 [2024-09-11 20:29:07,105 INFO L87 Difference]: Start difference. First operand 163 states and 188 transitions. Second operand has 36 states, 35 states have (on average 3.342857142857143) internal successors, (117), 36 states have internal predecessors, (117), 23 states have call successors, (39), 2 states have call predecessors, (39), 14 states have return successors, (47), 24 states have call predecessors, (47), 23 states have call successors, (47) [2024-09-11 20:29:07,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-11 20:29:07,579 INFO L93 Difference]: Finished difference Result 272 states and 313 transitions. [2024-09-11 20:29:07,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-09-11 20:29:07,580 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 3.342857142857143) internal successors, (117), 36 states have internal predecessors, (117), 23 states have call successors, (39), 2 states have call predecessors, (39), 14 states have return successors, (47), 24 states have call predecessors, (47), 23 states have call successors, (47) Word has length 527 [2024-09-11 20:29:07,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-11 20:29:07,582 INFO L225 Difference]: With dead ends: 272 [2024-09-11 20:29:07,582 INFO L226 Difference]: Without dead ends: 0 [2024-09-11 20:29:07,584 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1241 GetRequests, 1185 SyntacticMatches, 8 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 828 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=358, Invalid=2092, Unknown=0, NotChecked=0, Total=2450 [2024-09-11 20:29:07,585 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 51 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-11 20:29:07,585 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 436 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-11 20:29:07,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-11 20:29:07,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-11 20:29:07,586 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) [2024-09-11 20:29:07,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-11 20:29:07,587 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 527 [2024-09-11 20:29:07,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-11 20:29:07,587 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-11 20:29:07,587 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 3.342857142857143) internal successors, (117), 36 states have internal predecessors, (117), 23 states have call successors, (39), 2 states have call predecessors, (39), 14 states have return successors, (47), 24 states have call predecessors, (47), 23 states have call successors, (47) [2024-09-11 20:29:07,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-11 20:29:07,588 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-11 20:29:07,588 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-11 20:29:07,591 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-11 20:29:07,609 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-09-11 20:29:07,792 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-11 20:29:07,795 INFO L408 BasicCegarLoop]: Path program histogram: [11, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-11 20:29:07,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-11 20:29:19,638 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-11 20:29:19,659 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-09-11 20:29:19,682 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-09-11 20:29:19,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 08:29:19 BoogieIcfgContainer [2024-09-11 20:29:19,683 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-11 20:29:19,683 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-11 20:29:19,683 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-11 20:29:19,684 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-11 20:29:19,684 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:28:03" (3/4) ... [2024-09-11 20:29:19,686 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-11 20:29:19,689 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo2 [2024-09-11 20:29:19,689 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo1 [2024-09-11 20:29:19,693 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-09-11 20:29:19,693 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-09-11 20:29:19,693 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-09-11 20:29:19,693 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-11 20:29:19,769 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-11 20:29:19,770 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-11 20:29:19,770 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-11 20:29:19,770 INFO L158 Benchmark]: Toolchain (without parser) took 77110.19ms. Allocated memory was 146.8MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 94.5MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 286.1MB. Max. memory is 16.1GB. [2024-09-11 20:29:19,770 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 146.8MB. Free memory is still 106.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:29:19,771 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.12ms. Allocated memory is still 146.8MB. Free memory was 94.2MB in the beginning and 83.2MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-11 20:29:19,771 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.11ms. Allocated memory is still 146.8MB. Free memory was 82.9MB in the beginning and 81.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:29:19,771 INFO L158 Benchmark]: Boogie Preprocessor took 40.52ms. Allocated memory is still 146.8MB. Free memory was 81.6MB in the beginning and 80.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:29:19,771 INFO L158 Benchmark]: RCFGBuilder took 316.20ms. Allocated memory is still 146.8MB. Free memory was 80.1MB in the beginning and 68.6MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-11 20:29:19,772 INFO L158 Benchmark]: TraceAbstraction took 76388.93ms. Allocated memory was 146.8MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 67.9MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 912.4MB. Max. memory is 16.1GB. [2024-09-11 20:29:19,772 INFO L158 Benchmark]: Witness Printer took 86.51ms. Allocated memory is still 1.6GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-11 20:29:19,773 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 146.8MB. Free memory is still 106.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.12ms. Allocated memory is still 146.8MB. Free memory was 94.2MB in the beginning and 83.2MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.11ms. Allocated memory is still 146.8MB. Free memory was 82.9MB in the beginning and 81.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.52ms. Allocated memory is still 146.8MB. Free memory was 81.6MB in the beginning and 80.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 316.20ms. Allocated memory is still 146.8MB. Free memory was 80.1MB in the beginning and 68.6MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 76388.93ms. Allocated memory was 146.8MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 67.9MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 912.4MB. Max. memory is 16.1GB. * Witness Printer took 86.51ms. Allocated memory is still 1.6GB. Free memory was 1.2GB in the beginning and 1.2GB 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 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 64.4s, OverallIterations: 19, TraceHistogramMax: 69, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.1s, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1146 SdHoareTripleChecker+Valid, 5.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1042 mSDsluCounter, 8736 SdHoareTripleChecker+Invalid, 4.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8095 mSDsCounter, 1059 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11939 IncrementalHoareTripleChecker+Invalid, 12998 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1059 mSolverCounterUnsat, 641 mSDtfsCounter, 11939 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12302 GetRequests, 11542 SyntacticMatches, 99 SemanticMatches, 661 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9342 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=252occurred in iteration=17, InterpolantAutomatonStates: 487, 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, 19 MinimizatonAttempts, 253 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 48.1s InterpolantComputationTime, 10257 NumberOfCodeBlocks, 9011 NumberOfCodeBlocksAsserted, 138 NumberOfCheckSat, 15323 ConstructedInterpolants, 0 QuantifiedInterpolants, 22471 SizeOfPredicates, 75 NumberOfNonLiveVariables, 8785 ConjunctsInSsa, 483 ConjunctsInUnsatCore, 53 InterpolantComputations, 2 PerfectInterpolantSequences, 190884/219717 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 - InvariantResult [Line: 40]: Location Invariant Derived location invariant: (8 <= x) - ProcedureContractResult [Line: 19]: Procedure Contract for fibo2 Derived contract for procedure fibo2. Ensures: (((((\result == 0) || (\old(n) == 1)) || (1 < \old(n))) && (((\result == 1) || (\old(n) < 1)) || (3 < \old(n)))) && ((\result == 13) || (7 != \old(n)))) - ProcedureContractResult [Line: 9]: Procedure Contract for fibo1 Derived contract for procedure fibo1. Ensures: (((((\result == 0) || (1 < \old(n))) || ((\old(n) == 1) && (\result == 1))) && (((\old(n) < 2) || (3 < \old(n))) || (\result == 1))) && ((21 == \result) || (\old(n) != 8))) RESULT: Ultimate proved your program to be correct! [2024-09-11 20:29:19,797 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE