./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 434b16a64b06ae36ef836c68b9042912d6cf793be5a1688bb3a25d59d1194c23 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 08:58:47,275 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 08:58:47,363 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 08:58:47,369 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 08:58:47,370 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 08:58:47,397 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 08:58:47,399 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 08:58:47,400 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 08:58:47,400 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 08:58:47,401 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 08:58:47,402 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 08:58:47,403 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 08:58:47,403 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 08:58:47,404 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 08:58:47,405 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 08:58:47,406 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 08:58:47,406 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 08:58:47,406 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 08:58:47,407 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 08:58:47,407 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 08:58:47,407 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 08:58:47,408 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 08:58:47,410 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 08:58:47,411 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 08:58:47,411 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 08:58:47,411 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 08:58:47,411 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 08:58:47,412 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 08:58:47,412 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 08:58:47,412 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 08:58:47,412 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 08:58:47,412 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 08:58:47,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:58:47,413 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 08:58:47,413 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 08:58:47,414 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 08:58:47,414 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 08:58:47,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 08:58:47,415 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 08:58:47,415 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 08:58:47,416 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 08:58:47,416 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 08:58:47,417 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/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 434b16a64b06ae36ef836c68b9042912d6cf793be5a1688bb3a25d59d1194c23 [2024-10-24 08:58:47,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 08:58:47,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 08:58:47,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 08:58:47,709 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 08:58:47,709 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 08:58:47,711 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i [2024-10-24 08:58:49,103 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 08:58:49,299 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 08:58:49,300 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i [2024-10-24 08:58:49,311 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51489d4a2/f3c339fd9acd4e1089ac65a7a0b92ae5/FLAGb84259fb7 [2024-10-24 08:58:49,665 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51489d4a2/f3c339fd9acd4e1089ac65a7a0b92ae5 [2024-10-24 08:58:49,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 08:58:49,669 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 08:58:49,672 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 08:58:49,673 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 08:58:49,677 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 08:58:49,678 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:58:49" (1/1) ... [2024-10-24 08:58:49,679 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aec72f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:58:49, skipping insertion in model container [2024-10-24 08:58:49,679 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:58:49" (1/1) ... [2024-10-24 08:58:49,698 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 08:58:49,862 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i[916,929] [2024-10-24 08:58:49,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:58:49,907 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 08:58:49,917 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i[916,929] [2024-10-24 08:58:49,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:58:49,951 INFO L204 MainTranslator]: Completed translation [2024-10-24 08:58:49,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:58:49 WrapperNode [2024-10-24 08:58:49,952 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 08:58:49,953 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 08:58:49,953 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 08:58:49,953 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 08:58:49,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:58:49" (1/1) ... [2024-10-24 08:58:49,969 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:58:49" (1/1) ... [2024-10-24 08:58:49,996 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 123 [2024-10-24 08:58:49,996 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 08:58:49,997 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 08:58:49,997 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 08:58:49,997 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 08:58:50,009 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:58:49" (1/1) ... [2024-10-24 08:58:50,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:58:49" (1/1) ... [2024-10-24 08:58:50,012 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:58:49" (1/1) ... [2024-10-24 08:58:50,030 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 08:58:50,030 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:58:49" (1/1) ... [2024-10-24 08:58:50,030 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:58:49" (1/1) ... [2024-10-24 08:58:50,038 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:58:49" (1/1) ... [2024-10-24 08:58:50,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:58:49" (1/1) ... [2024-10-24 08:58:50,046 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:58:49" (1/1) ... [2024-10-24 08:58:50,048 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:58:49" (1/1) ... [2024-10-24 08:58:50,051 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 08:58:50,052 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 08:58:50,052 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 08:58:50,052 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 08:58:50,053 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:58:49" (1/1) ... [2024-10-24 08:58:50,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:58:50,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:58:50,099 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 08:58:50,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 08:58:50,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 08:58:50,156 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 08:58:50,157 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 08:58:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 08:58:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 08:58:50,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 08:58:50,232 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 08:58:50,236 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 08:58:50,469 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-10-24 08:58:50,469 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 08:58:50,516 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 08:58:50,520 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 08:58:50,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:58:50 BoogieIcfgContainer [2024-10-24 08:58:50,521 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 08:58:50,524 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 08:58:50,526 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 08:58:50,529 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 08:58:50,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:58:49" (1/3) ... [2024-10-24 08:58:50,530 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36cc9e8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:58:50, skipping insertion in model container [2024-10-24 08:58:50,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:58:49" (2/3) ... [2024-10-24 08:58:50,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36cc9e8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:58:50, skipping insertion in model container [2024-10-24 08:58:50,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:58:50" (3/3) ... [2024-10-24 08:58:50,533 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-79.i [2024-10-24 08:58:50,548 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 08:58:50,548 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 08:58:50,605 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 08:58:50,611 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@12775e85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 08:58:50,611 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 08:58:50,615 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 32 states have (on average 1.4375) internal successors, (46), 33 states have internal predecessors, (46), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 08:58:50,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-24 08:58:50,623 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:58:50,623 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:58:50,624 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:58:50,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:58:50,641 INFO L85 PathProgramCache]: Analyzing trace with hash -957176683, now seen corresponding path program 1 times [2024-10-24 08:58:50,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:58:50,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573990923] [2024-10-24 08:58:50,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:58:50,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:58:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:50,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:58:50,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:50,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:58:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:50,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:58:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:50,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:58:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:50,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:58:50,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:50,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:58:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:50,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:58:50,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:50,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:58:50,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:50,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:58:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:50,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:58:50,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:50,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:58:50,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:50,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:58:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:50,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:58:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:50,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:58:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:50,949 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 08:58:50,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:58:50,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573990923] [2024-10-24 08:58:50,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573990923] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:58:50,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:58:50,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 08:58:50,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573816838] [2024-10-24 08:58:50,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:58:50,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 08:58:50,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:58:50,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 08:58:50,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 08:58:50,994 INFO L87 Difference]: Start difference. First operand has 49 states, 32 states have (on average 1.4375) internal successors, (46), 33 states have internal predecessors, (46), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 08:58:51,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:58:51,033 INFO L93 Difference]: Finished difference Result 95 states and 160 transitions. [2024-10-24 08:58:51,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 08:58:51,039 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 90 [2024-10-24 08:58:51,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:58:51,048 INFO L225 Difference]: With dead ends: 95 [2024-10-24 08:58:51,048 INFO L226 Difference]: Without dead ends: 47 [2024-10-24 08:58:51,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 08:58:51,055 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 08:58:51,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 08:58:51,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-10-24 08:58:51,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-10-24 08:58:51,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 08:58:51,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 69 transitions. [2024-10-24 08:58:51,090 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 69 transitions. Word has length 90 [2024-10-24 08:58:51,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:58:51,090 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 69 transitions. [2024-10-24 08:58:51,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 08:58:51,091 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 69 transitions. [2024-10-24 08:58:51,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-24 08:58:51,094 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:58:51,094 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:58:51,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 08:58:51,095 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:58:51,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:58:51,096 INFO L85 PathProgramCache]: Analyzing trace with hash 2132147669, now seen corresponding path program 1 times [2024-10-24 08:58:51,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:58:51,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75869697] [2024-10-24 08:58:51,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:58:51,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:58:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:51,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:58:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:51,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:58:51,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:51,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:58:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:51,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:58:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:51,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:58:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:51,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:58:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:51,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:58:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:51,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:58:51,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:51,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:58:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:51,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:58:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:51,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:58:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:51,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:58:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:51,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:58:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:51,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:58:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:51,447 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 08:58:51,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:58:51,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75869697] [2024-10-24 08:58:51,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75869697] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:58:51,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:58:51,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 08:58:51,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141961927] [2024-10-24 08:58:51,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:58:51,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 08:58:51,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:58:51,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 08:58:51,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 08:58:51,453 INFO L87 Difference]: Start difference. First operand 47 states and 69 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:58:51,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:58:51,535 INFO L93 Difference]: Finished difference Result 137 states and 201 transitions. [2024-10-24 08:58:51,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 08:58:51,535 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 90 [2024-10-24 08:58:51,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:58:51,537 INFO L225 Difference]: With dead ends: 137 [2024-10-24 08:58:51,538 INFO L226 Difference]: Without dead ends: 91 [2024-10-24 08:58:51,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 08:58:51,543 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 62 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 08:58:51,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 296 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 08:58:51,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-10-24 08:58:51,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 49. [2024-10-24 08:58:51,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 33 states have (on average 1.303030303030303) internal successors, (43), 33 states have internal predecessors, (43), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 08:58:51,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2024-10-24 08:58:51,567 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 90 [2024-10-24 08:58:51,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:58:51,569 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2024-10-24 08:58:51,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:58:51,569 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2024-10-24 08:58:51,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 08:58:51,574 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:58:51,574 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:58:51,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 08:58:51,575 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:58:51,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:58:51,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1347226657, now seen corresponding path program 1 times [2024-10-24 08:58:51,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:58:51,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059263476] [2024-10-24 08:58:51,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:58:51,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:58:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:58:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:58:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:58:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:58:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:58:53,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:58:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:58:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:58:53,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:58:53,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:58:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:58:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:58:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:58:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:58:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,259 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 08:58:53,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:58:53,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059263476] [2024-10-24 08:58:53,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059263476] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:58:53,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:58:53,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 08:58:53,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800717755] [2024-10-24 08:58:53,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:58:53,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 08:58:53,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:58:53,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 08:58:53,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 08:58:53,265 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:58:53,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:58:53,486 INFO L93 Difference]: Finished difference Result 140 states and 203 transitions. [2024-10-24 08:58:53,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 08:58:53,487 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 91 [2024-10-24 08:58:53,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:58:53,489 INFO L225 Difference]: With dead ends: 140 [2024-10-24 08:58:53,489 INFO L226 Difference]: Without dead ends: 92 [2024-10-24 08:58:53,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 08:58:53,491 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 74 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 08:58:53,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 204 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 08:58:53,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-10-24 08:58:53,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 47. [2024-10-24 08:58:53,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 31 states have internal predecessors, (39), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 08:58:53,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2024-10-24 08:58:53,500 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 91 [2024-10-24 08:58:53,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:58:53,501 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2024-10-24 08:58:53,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:58:53,501 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2024-10-24 08:58:53,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-24 08:58:53,503 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:58:53,503 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:58:53,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 08:58:53,504 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:58:53,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:58:53,504 INFO L85 PathProgramCache]: Analyzing trace with hash -56641190, now seen corresponding path program 1 times [2024-10-24 08:58:53,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:58:53,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204734638] [2024-10-24 08:58:53,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:58:53,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:58:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:58:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:58:53,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:58:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:58:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:58:53,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:58:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:58:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:58:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:58:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:58:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:58:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:58:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:58:53,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:58:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:53,950 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-10-24 08:58:53,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:58:53,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204734638] [2024-10-24 08:58:53,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204734638] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:58:53,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:58:53,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 08:58:53,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996156071] [2024-10-24 08:58:53,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:58:53,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 08:58:53,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:58:53,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 08:58:53,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 08:58:53,958 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:58:54,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:58:54,125 INFO L93 Difference]: Finished difference Result 99 states and 138 transitions. [2024-10-24 08:58:54,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 08:58:54,126 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 92 [2024-10-24 08:58:54,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:58:54,127 INFO L225 Difference]: With dead ends: 99 [2024-10-24 08:58:54,128 INFO L226 Difference]: Without dead ends: 53 [2024-10-24 08:58:54,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-24 08:58:54,133 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 43 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 08:58:54,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 118 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 08:58:54,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-10-24 08:58:54,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2024-10-24 08:58:54,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 34 states have internal predecessors, (41), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 08:58:54,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 69 transitions. [2024-10-24 08:58:54,152 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 69 transitions. Word has length 92 [2024-10-24 08:58:54,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:58:54,154 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 69 transitions. [2024-10-24 08:58:54,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:58:54,155 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 69 transitions. [2024-10-24 08:58:54,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-24 08:58:54,156 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:58:54,157 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:58:54,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 08:58:54,159 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:58:54,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:58:54,160 INFO L85 PathProgramCache]: Analyzing trace with hash 2044155108, now seen corresponding path program 1 times [2024-10-24 08:58:54,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:58:54,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639484621] [2024-10-24 08:58:54,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:58:54,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:58:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 08:58:54,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [896340429] [2024-10-24 08:58:54,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:58:54,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 08:58:54,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:58:54,195 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 08:58:54,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 08:58:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:54,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-24 08:58:54,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 08:58:55,036 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-10-24 08:58:55,037 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 08:58:55,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:58:55,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639484621] [2024-10-24 08:58:55,038 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 08:58:55,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896340429] [2024-10-24 08:58:55,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896340429] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:58:55,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:58:55,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 08:58:55,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977978926] [2024-10-24 08:58:55,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:58:55,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 08:58:55,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:58:55,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 08:58:55,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-10-24 08:58:55,041 INFO L87 Difference]: Start difference. First operand 51 states and 69 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:58:55,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:58:55,570 INFO L93 Difference]: Finished difference Result 90 states and 113 transitions. [2024-10-24 08:58:55,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 08:58:55,570 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2024-10-24 08:58:55,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:58:55,574 INFO L225 Difference]: With dead ends: 90 [2024-10-24 08:58:55,574 INFO L226 Difference]: Without dead ends: 88 [2024-10-24 08:58:55,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2024-10-24 08:58:55,576 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 78 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 08:58:55,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 154 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 08:58:55,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-10-24 08:58:55,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 63. [2024-10-24 08:58:55,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 46 states have (on average 1.2173913043478262) internal successors, (56), 46 states have internal predecessors, (56), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 08:58:55,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 84 transitions. [2024-10-24 08:58:55,596 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 84 transitions. Word has length 93 [2024-10-24 08:58:55,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:58:55,597 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 84 transitions. [2024-10-24 08:58:55,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:58:55,597 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 84 transitions. [2024-10-24 08:58:55,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-24 08:58:55,603 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:58:55,603 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:58:55,621 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 08:58:55,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 08:58:55,805 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:58:55,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:58:55,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1002172388, now seen corresponding path program 1 times [2024-10-24 08:58:55,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:58:55,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970603869] [2024-10-24 08:58:55,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:58:55,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:58:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:55,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:58:55,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:55,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:58:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:55,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:58:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:55,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:58:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:55,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:58:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:55,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:58:55,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:55,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:58:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:55,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:58:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:55,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:58:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:55,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:58:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:55,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:58:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:55,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:58:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:55,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:58:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:55,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:58:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:55,897 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 08:58:55,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:58:55,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970603869] [2024-10-24 08:58:55,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970603869] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:58:55,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:58:55,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 08:58:55,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145785249] [2024-10-24 08:58:55,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:58:55,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 08:58:55,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:58:55,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 08:58:55,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 08:58:55,900 INFO L87 Difference]: Start difference. First operand 63 states and 84 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:58:55,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:58:55,931 INFO L93 Difference]: Finished difference Result 142 states and 188 transitions. [2024-10-24 08:58:55,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 08:58:55,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 94 [2024-10-24 08:58:55,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:58:55,933 INFO L225 Difference]: With dead ends: 142 [2024-10-24 08:58:55,933 INFO L226 Difference]: Without dead ends: 80 [2024-10-24 08:58:55,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 08:58:55,935 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 13 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 08:58:55,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 110 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 08:58:55,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-10-24 08:58:55,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 73. [2024-10-24 08:58:55,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 56 states have internal predecessors, (68), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 08:58:55,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 96 transitions. [2024-10-24 08:58:55,942 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 96 transitions. Word has length 94 [2024-10-24 08:58:55,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:58:55,943 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 96 transitions. [2024-10-24 08:58:55,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:58:55,943 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 96 transitions. [2024-10-24 08:58:55,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-24 08:58:55,944 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:58:55,945 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:58:55,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 08:58:55,945 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:58:55,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:58:55,945 INFO L85 PathProgramCache]: Analyzing trace with hash -2046273147, now seen corresponding path program 1 times [2024-10-24 08:58:55,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:58:55,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936967276] [2024-10-24 08:58:55,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:58:55,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:58:55,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 08:58:55,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2126758616] [2024-10-24 08:58:55,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:58:55,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 08:58:55,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:58:55,981 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 08:58:55,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 08:58:56,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:58:56,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-10-24 08:58:56,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 08:58:57,016 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 239 proven. 21 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-10-24 08:58:57,017 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 08:58:59,574 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-10-24 08:58:59,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:58:59,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936967276] [2024-10-24 08:58:59,575 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 08:58:59,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126758616] [2024-10-24 08:58:59,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126758616] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-24 08:58:59,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 08:58:59,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [17] total 28 [2024-10-24 08:58:59,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293990939] [2024-10-24 08:58:59,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:58:59,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 08:58:59,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:58:59,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 08:58:59,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2024-10-24 08:58:59,578 INFO L87 Difference]: Start difference. First operand 73 states and 96 transitions. Second operand has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:59:02,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:59:02,699 INFO L93 Difference]: Finished difference Result 91 states and 115 transitions. [2024-10-24 08:59:02,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 08:59:02,699 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 94 [2024-10-24 08:59:02,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:59:02,700 INFO L225 Difference]: With dead ends: 91 [2024-10-24 08:59:02,700 INFO L226 Difference]: Without dead ends: 89 [2024-10-24 08:59:02,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=201, Invalid=921, Unknown=0, NotChecked=0, Total=1122 [2024-10-24 08:59:02,702 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 191 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-24 08:59:02,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 210 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-24 08:59:02,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-10-24 08:59:02,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 74. [2024-10-24 08:59:02,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 57 states have (on average 1.2280701754385965) internal successors, (70), 57 states have internal predecessors, (70), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 08:59:02,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 98 transitions. [2024-10-24 08:59:02,724 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 98 transitions. Word has length 94 [2024-10-24 08:59:02,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:59:02,725 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 98 transitions. [2024-10-24 08:59:02,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:59:02,725 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 98 transitions. [2024-10-24 08:59:02,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-24 08:59:02,726 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:59:02,726 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:59:02,748 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 08:59:02,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-24 08:59:02,929 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:59:02,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:59:02,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1726085332, now seen corresponding path program 1 times [2024-10-24 08:59:02,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:59:02,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40304926] [2024-10-24 08:59:02,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:59:02,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:59:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 08:59:02,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1675110620] [2024-10-24 08:59:02,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:59:02,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 08:59:02,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:59:02,954 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 08:59:02,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 08:59:03,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:03,034 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-24 08:59:03,040 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 08:59:04,046 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-10-24 08:59:04,046 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 08:59:04,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:59:04,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40304926] [2024-10-24 08:59:04,047 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 08:59:04,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675110620] [2024-10-24 08:59:04,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675110620] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:59:04,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:59:04,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 08:59:04,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115582999] [2024-10-24 08:59:04,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:59:04,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 08:59:04,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:59:04,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 08:59:04,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-10-24 08:59:04,050 INFO L87 Difference]: Start difference. First operand 74 states and 98 transitions. Second operand has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:59:05,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:59:05,183 INFO L93 Difference]: Finished difference Result 112 states and 138 transitions. [2024-10-24 08:59:05,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 08:59:05,184 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 94 [2024-10-24 08:59:05,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:59:05,185 INFO L225 Difference]: With dead ends: 112 [2024-10-24 08:59:05,186 INFO L226 Difference]: Without dead ends: 110 [2024-10-24 08:59:05,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2024-10-24 08:59:05,187 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 99 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 08:59:05,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 243 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 08:59:05,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-10-24 08:59:05,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 76. [2024-10-24 08:59:05,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 59 states have (on average 1.2372881355932204) internal successors, (73), 59 states have internal predecessors, (73), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 08:59:05,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 101 transitions. [2024-10-24 08:59:05,202 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 101 transitions. Word has length 94 [2024-10-24 08:59:05,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:59:05,203 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 101 transitions. [2024-10-24 08:59:05,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:59:05,203 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 101 transitions. [2024-10-24 08:59:05,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-24 08:59:05,204 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:59:05,204 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:59:05,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-24 08:59:05,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 08:59:05,405 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:59:05,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:59:05,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1982075950, now seen corresponding path program 1 times [2024-10-24 08:59:05,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:59:05,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933754663] [2024-10-24 08:59:05,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:59:05,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:59:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:05,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:59:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:05,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:59:05,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:05,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:59:05,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:05,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:59:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:05,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:59:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:05,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:59:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:05,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:59:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:05,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:59:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:05,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:59:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:05,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:59:05,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:05,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:59:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:05,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:59:05,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:05,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:59:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:05,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:59:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:05,881 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 08:59:05,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:59:05,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933754663] [2024-10-24 08:59:05,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933754663] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:59:05,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:59:05,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 08:59:05,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641934345] [2024-10-24 08:59:05,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:59:05,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 08:59:05,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:59:05,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 08:59:05,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 08:59:05,884 INFO L87 Difference]: Start difference. First operand 76 states and 101 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:59:06,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:59:06,097 INFO L93 Difference]: Finished difference Result 110 states and 142 transitions. [2024-10-24 08:59:06,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 08:59:06,097 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 94 [2024-10-24 08:59:06,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:59:06,098 INFO L225 Difference]: With dead ends: 110 [2024-10-24 08:59:06,098 INFO L226 Difference]: Without dead ends: 108 [2024-10-24 08:59:06,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-10-24 08:59:06,099 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 31 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 08:59:06,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 323 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 08:59:06,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-10-24 08:59:06,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2024-10-24 08:59:06,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 85 states have (on average 1.2117647058823529) internal successors, (103), 86 states have internal predecessors, (103), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 08:59:06,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 139 transitions. [2024-10-24 08:59:06,120 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 139 transitions. Word has length 94 [2024-10-24 08:59:06,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:59:06,121 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 139 transitions. [2024-10-24 08:59:06,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:59:06,121 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 139 transitions. [2024-10-24 08:59:06,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-24 08:59:06,123 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:59:06,123 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:59:06,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 08:59:06,123 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:59:06,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:59:06,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1844237751, now seen corresponding path program 1 times [2024-10-24 08:59:06,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:59:06,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602175510] [2024-10-24 08:59:06,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:59:06,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:59:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:06,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:59:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:06,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:59:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:06,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:59:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:06,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:59:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:06,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:59:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:06,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:59:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:06,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:59:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:06,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:59:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:06,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:59:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:06,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:59:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:06,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:59:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:06,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:59:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:06,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:59:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:06,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:59:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:06,206 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 08:59:06,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:59:06,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602175510] [2024-10-24 08:59:06,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602175510] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:59:06,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:59:06,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 08:59:06,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692343461] [2024-10-24 08:59:06,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:59:06,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 08:59:06,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:59:06,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 08:59:06,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 08:59:06,208 INFO L87 Difference]: Start difference. First operand 107 states and 139 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:59:06,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:59:06,250 INFO L93 Difference]: Finished difference Result 225 states and 289 transitions. [2024-10-24 08:59:06,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 08:59:06,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 94 [2024-10-24 08:59:06,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:59:06,253 INFO L225 Difference]: With dead ends: 225 [2024-10-24 08:59:06,253 INFO L226 Difference]: Without dead ends: 119 [2024-10-24 08:59:06,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 08:59:06,254 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 14 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 08:59:06,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 127 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 08:59:06,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-10-24 08:59:06,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 107. [2024-10-24 08:59:06,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 85 states have (on average 1.188235294117647) internal successors, (101), 86 states have internal predecessors, (101), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 08:59:06,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 137 transitions. [2024-10-24 08:59:06,269 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 137 transitions. Word has length 94 [2024-10-24 08:59:06,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:59:06,269 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 137 transitions. [2024-10-24 08:59:06,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:59:06,269 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 137 transitions. [2024-10-24 08:59:06,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-24 08:59:06,270 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:59:06,271 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:59:06,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 08:59:06,271 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:59:06,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:59:06,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1335357501, now seen corresponding path program 1 times [2024-10-24 08:59:06,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:59:06,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937420266] [2024-10-24 08:59:06,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:59:06,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:59:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 08:59:06,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [455669473] [2024-10-24 08:59:06,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:59:06,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 08:59:06,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:59:06,314 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 08:59:06,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 08:59:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:06,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-24 08:59:06,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 08:59:07,662 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-10-24 08:59:07,663 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 08:59:07,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:59:07,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937420266] [2024-10-24 08:59:07,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 08:59:07,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455669473] [2024-10-24 08:59:07,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455669473] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:59:07,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:59:07,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 08:59:07,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804713873] [2024-10-24 08:59:07,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:59:07,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 08:59:07,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:59:07,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 08:59:07,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-10-24 08:59:07,665 INFO L87 Difference]: Start difference. First operand 107 states and 137 transitions. Second operand has 15 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 14 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 08:59:08,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:59:08,848 INFO L93 Difference]: Finished difference Result 135 states and 165 transitions. [2024-10-24 08:59:08,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 08:59:08,849 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 14 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 95 [2024-10-24 08:59:08,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:59:08,850 INFO L225 Difference]: With dead ends: 135 [2024-10-24 08:59:08,850 INFO L226 Difference]: Without dead ends: 133 [2024-10-24 08:59:08,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2024-10-24 08:59:08,851 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 130 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 08:59:08,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 230 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 08:59:08,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-10-24 08:59:08,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 98. [2024-10-24 08:59:08,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 76 states have (on average 1.1842105263157894) internal successors, (90), 77 states have internal predecessors, (90), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 08:59:08,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 126 transitions. [2024-10-24 08:59:08,863 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 126 transitions. Word has length 95 [2024-10-24 08:59:08,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:59:08,864 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 126 transitions. [2024-10-24 08:59:08,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 14 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 08:59:08,864 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 126 transitions. [2024-10-24 08:59:08,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-24 08:59:08,865 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:59:08,865 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:59:08,883 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 08:59:09,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 08:59:09,070 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:59:09,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:59:09,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1390324137, now seen corresponding path program 1 times [2024-10-24 08:59:09,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:59:09,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547258356] [2024-10-24 08:59:09,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:59:09,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:59:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 08:59:09,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1747937194] [2024-10-24 08:59:09,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:59:09,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 08:59:09,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:59:09,104 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 08:59:09,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 08:59:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 08:59:09,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 08:59:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 08:59:09,262 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 08:59:09,264 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 08:59:09,266 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-24 08:59:09,285 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 08:59:09,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-24 08:59:09,471 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:59:09,548 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 08:59:09,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 08:59:09 BoogieIcfgContainer [2024-10-24 08:59:09,555 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 08:59:09,556 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 08:59:09,556 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 08:59:09,556 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 08:59:09,556 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:58:50" (3/4) ... [2024-10-24 08:59:09,558 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 08:59:09,559 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 08:59:09,560 INFO L158 Benchmark]: Toolchain (without parser) took 19890.58ms. Allocated memory was 167.8MB in the beginning and 257.9MB in the end (delta: 90.2MB). Free memory was 113.0MB in the beginning and 147.7MB in the end (delta: -34.6MB). Peak memory consumption was 57.0MB. Max. memory is 16.1GB. [2024-10-24 08:59:09,560 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 167.8MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 08:59:09,560 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.68ms. Allocated memory is still 167.8MB. Free memory was 113.0MB in the beginning and 98.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-24 08:59:09,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.75ms. Allocated memory is still 167.8MB. Free memory was 98.4MB in the beginning and 96.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 08:59:09,561 INFO L158 Benchmark]: Boogie Preprocessor took 53.78ms. Allocated memory is still 167.8MB. Free memory was 96.3MB in the beginning and 93.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 08:59:09,561 INFO L158 Benchmark]: RCFGBuilder took 469.55ms. Allocated memory is still 167.8MB. Free memory was 93.7MB in the beginning and 75.3MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-24 08:59:09,562 INFO L158 Benchmark]: TraceAbstraction took 19031.46ms. Allocated memory was 167.8MB in the beginning and 257.9MB in the end (delta: 90.2MB). Free memory was 74.8MB in the beginning and 147.7MB in the end (delta: -72.8MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2024-10-24 08:59:09,562 INFO L158 Benchmark]: Witness Printer took 3.89ms. Allocated memory is still 257.9MB. Free memory is still 147.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 08:59:09,564 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 167.8MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.68ms. Allocated memory is still 167.8MB. Free memory was 113.0MB in the beginning and 98.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.75ms. Allocated memory is still 167.8MB. Free memory was 98.4MB in the beginning and 96.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.78ms. Allocated memory is still 167.8MB. Free memory was 96.3MB in the beginning and 93.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 469.55ms. Allocated memory is still 167.8MB. Free memory was 93.7MB in the beginning and 75.3MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 19031.46ms. Allocated memory was 167.8MB in the beginning and 257.9MB in the end (delta: 90.2MB). Free memory was 74.8MB in the beginning and 147.7MB in the end (delta: -72.8MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * Witness Printer took 3.89ms. Allocated memory is still 257.9MB. Free memory is still 147.7MB. There was no memory consumed. Max. memory is 16.1GB. * 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of shiftRight at line 91. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -16; [L23] signed char var_1_3 = 0; [L24] signed char var_1_4 = 64; [L25] signed char var_1_5 = 64; [L26] signed long int var_1_6 = -64; [L27] signed long int var_1_8 = 32; [L28] signed long int var_1_9 = 1; [L29] unsigned short int var_1_10 = 32; [L30] signed long int var_1_11 = 15; [L31] unsigned char var_1_12 = 0; [L32] unsigned char var_1_13 = 0; [L33] unsigned short int last_1_var_1_10 = 32; [L95] isInitial = 1 [L96] FCALL initially() [L97] COND TRUE 1 [L98] CALL updateLastVariables() [L88] last_1_var_1_10 = var_1_10 [L98] RET updateLastVariables() [L99] CALL updateVariables() [L65] var_1_3 = __VERIFIER_nondet_char() [L66] CALL assume_abort_if_not(var_1_3 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L66] RET assume_abort_if_not(var_1_3 >= -63) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L67] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L67] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L68] var_1_4 = __VERIFIER_nondet_char() [L69] CALL assume_abort_if_not(var_1_4 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L69] RET assume_abort_if_not(var_1_4 >= -1) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L70] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L70] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=64, var_1_6=-64, var_1_8=32, var_1_9=1] [L71] var_1_5 = __VERIFIER_nondet_char() [L72] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=32, var_1_9=1] [L72] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=32, var_1_9=1] [L73] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=32, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=32, var_1_9=1] [L73] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=32, var_1_9=1] [L74] var_1_8 = __VERIFIER_nondet_long() [L75] CALL assume_abort_if_not(var_1_8 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=1] [L75] RET assume_abort_if_not(var_1_8 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=1] [L76] CALL assume_abort_if_not(var_1_8 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=1] [L76] RET assume_abort_if_not(var_1_8 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=1] [L77] var_1_9 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_9 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L78] RET assume_abort_if_not(var_1_9 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L79] CALL assume_abort_if_not(var_1_9 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L79] RET assume_abort_if_not(var_1_9 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=15, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L80] var_1_11 = __VERIFIER_nondet_long() [L81] CALL assume_abort_if_not(var_1_11 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L81] RET assume_abort_if_not(var_1_11 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L82] CALL assume_abort_if_not(var_1_11 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L82] RET assume_abort_if_not(var_1_11 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L83] var_1_13 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L84] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L85] CALL assume_abort_if_not(var_1_13 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L85] RET assume_abort_if_not(var_1_13 <= 0) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L99] RET updateVariables() [L100] CALL step() [L37] signed long int stepLocal_0 = (((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10)); VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L38] EXPR last_1_var_1_10 >> var_1_3 VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=-2147483648, var_1_9=-2147483648] [L38] COND FALSE !(stepLocal_0 <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) [L45] var_1_6 = var_1_5 VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=0, var_1_8=-2147483648, var_1_9=-2147483648] [L47] signed long int stepLocal_1 = var_1_5 + var_1_6; VAL [isInitial=1, last_1_var_1_10=32, stepLocal_1=0, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=0, var_1_8=-2147483648, var_1_9=-2147483648] [L48] COND FALSE !(var_1_11 < var_1_9) VAL [isInitial=1, last_1_var_1_10=32, stepLocal_1=0, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=0, var_1_8=-2147483648, var_1_9=-2147483648] [L55] var_1_12 = var_1_13 VAL [isInitial=1, last_1_var_1_10=32, stepLocal_1=0, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=0, var_1_8=-2147483648, var_1_9=-2147483648] [L56] COND TRUE ! var_1_12 VAL [isInitial=1, last_1_var_1_10=32, stepLocal_1=0, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=0, var_1_8=-2147483648, var_1_9=-2147483648] [L57] COND TRUE ! var_1_12 [L58] var_1_1 = (var_1_3 + -32) VAL [isInitial=1, last_1_var_1_10=32, stepLocal_1=0, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=31, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=0, var_1_8=-2147483648, var_1_9=-2147483648] [L100] RET step() [L101] CALL, EXPR property() [L91] EXPR ((! var_1_12) ? ((! var_1_12) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - ((((var_1_5) < (16)) ? (var_1_5) : (16))))))) : 1) && ((((((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10))) <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) ? (((- var_1_8) >= var_1_9) ? (var_1_6 == ((signed long int) var_1_4)) : (var_1_6 == ((signed long int) var_1_5))) : (var_1_6 == ((signed long int) var_1_5))) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=31, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=0, var_1_8=-2147483648, var_1_9=-2147483648] [L91] EXPR last_1_var_1_10 >> var_1_3 VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=31, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=0, var_1_8=-2147483648, var_1_9=-2147483648] [L91] EXPR ((! var_1_12) ? ((! var_1_12) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - ((((var_1_5) < (16)) ? (var_1_5) : (16))))))) : 1) && ((((((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10))) <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) ? (((- var_1_8) >= var_1_9) ? (var_1_6 == ((signed long int) var_1_4)) : (var_1_6 == ((signed long int) var_1_5))) : (var_1_6 == ((signed long int) var_1_5))) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=31, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=0, var_1_8=-2147483648, var_1_9=-2147483648] [L91-L92] return ((((! var_1_12) ? ((! var_1_12) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - ((((var_1_5) < (16)) ? (var_1_5) : (16))))))) : 1) && ((((((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10))) <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) ? (((- var_1_8) >= var_1_9) ? (var_1_6 == ((signed long int) var_1_4)) : (var_1_6 == ((signed long int) var_1_5))) : (var_1_6 == ((signed long int) var_1_5)))) && ((var_1_11 < var_1_9) ? (((var_1_5 + var_1_6) <= (~ (var_1_6 % -32))) ? (var_1_10 == ((unsigned short int) var_1_5)) : (var_1_10 == ((unsigned short int) var_1_5))) : 1)) && (var_1_12 == ((unsigned char) var_1_13)) ; [L101] RET, EXPR property() [L101] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=31, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=0, var_1_8=-2147483648, var_1_9=-2147483648] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=-2147483648, var_1_12=0, var_1_13=0, var_1_1=31, var_1_3=63, var_1_4=-1, var_1_5=0, var_1_6=0, var_1_8=-2147483648, var_1_9=-2147483648] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.9s, OverallIterations: 12, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 783 SdHoareTripleChecker+Valid, 4.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 735 mSDsluCounter, 2081 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1402 mSDsCounter, 102 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2476 IncrementalHoareTripleChecker+Invalid, 2578 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 102 mSolverCounterUnsat, 679 mSDtfsCounter, 2476 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 739 GetRequests, 629 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=9, InterpolantAutomatonStates: 101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 218 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 9.7s InterpolantComputationTime, 1587 NumberOfCodeBlocks, 1587 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1103 ConstructedInterpolants, 8 QuantifiedInterpolants, 5316 SizeOfPredicates, 47 NumberOfNonLiveVariables, 888 ConjunctsInSsa, 103 ConjunctsInUnsatCore, 12 InterpolantComputations, 11 PerfectInterpolantSequences, 4347/4368 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-24 08:59:09,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 434b16a64b06ae36ef836c68b9042912d6cf793be5a1688bb3a25d59d1194c23 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 08:59:11,763 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 08:59:11,847 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-24 08:59:11,855 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 08:59:11,855 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 08:59:11,886 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 08:59:11,887 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 08:59:11,887 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 08:59:11,888 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 08:59:11,888 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 08:59:11,892 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 08:59:11,892 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 08:59:11,893 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 08:59:11,893 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 08:59:11,893 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 08:59:11,894 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 08:59:11,894 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 08:59:11,894 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 08:59:11,895 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 08:59:11,895 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 08:59:11,896 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 08:59:11,896 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 08:59:11,897 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 08:59:11,897 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 08:59:11,900 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 08:59:11,900 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 08:59:11,900 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 08:59:11,900 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 08:59:11,901 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 08:59:11,901 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 08:59:11,901 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 08:59:11,901 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 08:59:11,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 08:59:11,902 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 08:59:11,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:59:11,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 08:59:11,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 08:59:11,903 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 08:59:11,903 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 08:59:11,903 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 08:59:11,903 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 08:59:11,904 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 08:59:11,904 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 08:59:11,904 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 08:59:11,904 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 08:59:11,905 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/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 434b16a64b06ae36ef836c68b9042912d6cf793be5a1688bb3a25d59d1194c23 [2024-10-24 08:59:12,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 08:59:12,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 08:59:12,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 08:59:12,238 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 08:59:12,238 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 08:59:12,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i [2024-10-24 08:59:13,828 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 08:59:14,010 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 08:59:14,014 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i [2024-10-24 08:59:14,024 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db74e2bec/66c186a22fa446e386c765f5f404f934/FLAGffeaf0c50 [2024-10-24 08:59:14,036 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db74e2bec/66c186a22fa446e386c765f5f404f934 [2024-10-24 08:59:14,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 08:59:14,040 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 08:59:14,042 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 08:59:14,042 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 08:59:14,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 08:59:14,048 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:59:14" (1/1) ... [2024-10-24 08:59:14,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf83223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:59:14, skipping insertion in model container [2024-10-24 08:59:14,049 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:59:14" (1/1) ... [2024-10-24 08:59:14,073 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 08:59:14,248 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i[916,929] [2024-10-24 08:59:14,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:59:14,339 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 08:59:14,350 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-79.i[916,929] [2024-10-24 08:59:14,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:59:14,393 INFO L204 MainTranslator]: Completed translation [2024-10-24 08:59:14,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:59:14 WrapperNode [2024-10-24 08:59:14,394 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 08:59:14,395 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 08:59:14,395 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 08:59:14,395 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 08:59:14,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:59:14" (1/1) ... [2024-10-24 08:59:14,409 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:59:14" (1/1) ... [2024-10-24 08:59:14,430 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 98 [2024-10-24 08:59:14,430 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 08:59:14,431 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 08:59:14,431 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 08:59:14,431 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 08:59:14,440 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:59:14" (1/1) ... [2024-10-24 08:59:14,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:59:14" (1/1) ... [2024-10-24 08:59:14,443 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:59:14" (1/1) ... [2024-10-24 08:59:14,454 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 08:59:14,455 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:59:14" (1/1) ... [2024-10-24 08:59:14,455 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:59:14" (1/1) ... [2024-10-24 08:59:14,468 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:59:14" (1/1) ... [2024-10-24 08:59:14,473 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:59:14" (1/1) ... [2024-10-24 08:59:14,479 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:59:14" (1/1) ... [2024-10-24 08:59:14,481 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:59:14" (1/1) ... [2024-10-24 08:59:14,486 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 08:59:14,487 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 08:59:14,487 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 08:59:14,487 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 08:59:14,488 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:59:14" (1/1) ... [2024-10-24 08:59:14,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:59:14,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:59:14,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 08:59:14,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 08:59:14,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 08:59:14,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 08:59:14,573 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 08:59:14,573 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 08:59:14,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 08:59:14,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 08:59:14,642 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 08:59:14,644 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 08:59:14,885 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-10-24 08:59:14,886 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 08:59:14,940 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 08:59:14,940 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 08:59:14,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:59:14 BoogieIcfgContainer [2024-10-24 08:59:14,941 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 08:59:14,943 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 08:59:14,943 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 08:59:14,946 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 08:59:14,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:59:14" (1/3) ... [2024-10-24 08:59:14,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d14babc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:59:14, skipping insertion in model container [2024-10-24 08:59:14,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:59:14" (2/3) ... [2024-10-24 08:59:14,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d14babc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:59:14, skipping insertion in model container [2024-10-24 08:59:14,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:59:14" (3/3) ... [2024-10-24 08:59:14,948 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-79.i [2024-10-24 08:59:14,972 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 08:59:14,973 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 08:59:15,040 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 08:59:15,046 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@4b832cc1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 08:59:15,046 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 08:59:15,050 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 08:59:15,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-24 08:59:15,061 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:59:15,062 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:59:15,062 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:59:15,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:59:15,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1990728004, now seen corresponding path program 1 times [2024-10-24 08:59:15,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 08:59:15,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457207966] [2024-10-24 08:59:15,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:59:15,081 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 08:59:15,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 08:59:15,083 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 08:59:15,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-24 08:59:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:15,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 08:59:15,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 08:59:15,273 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-10-24 08:59:15,273 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 08:59:15,274 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 08:59:15,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457207966] [2024-10-24 08:59:15,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457207966] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:59:15,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:59:15,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 08:59:15,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513400354] [2024-10-24 08:59:15,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:59:15,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 08:59:15,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 08:59:15,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 08:59:15,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 08:59:15,300 INFO L87 Difference]: Start difference. First operand has 42 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 08:59:15,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:59:15,346 INFO L93 Difference]: Finished difference Result 81 states and 140 transitions. [2024-10-24 08:59:15,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 08:59:15,350 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 87 [2024-10-24 08:59:15,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:59:15,358 INFO L225 Difference]: With dead ends: 81 [2024-10-24 08:59:15,358 INFO L226 Difference]: Without dead ends: 40 [2024-10-24 08:59:15,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 08:59:15,365 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 08:59:15,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 08:59:15,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-10-24 08:59:15,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-10-24 08:59:15,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 24 states have internal predecessors, (31), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 08:59:15,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 59 transitions. [2024-10-24 08:59:15,415 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 59 transitions. Word has length 87 [2024-10-24 08:59:15,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:59:15,416 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 59 transitions. [2024-10-24 08:59:15,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 08:59:15,416 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 59 transitions. [2024-10-24 08:59:15,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-24 08:59:15,421 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:59:15,421 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:59:15,428 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-24 08:59:15,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 08:59:15,624 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:59:15,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:59:15,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1990912644, now seen corresponding path program 1 times [2024-10-24 08:59:15,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 08:59:15,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811878753] [2024-10-24 08:59:15,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:59:15,627 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 08:59:15,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 08:59:15,631 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 08:59:15,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-24 08:59:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:15,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 08:59:15,734 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 08:59:15,869 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-10-24 08:59:15,870 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 08:59:15,870 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 08:59:15,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811878753] [2024-10-24 08:59:15,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811878753] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:59:15,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:59:15,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 08:59:15,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288508404] [2024-10-24 08:59:15,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:59:15,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 08:59:15,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 08:59:15,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 08:59:15,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 08:59:15,877 INFO L87 Difference]: Start difference. First operand 40 states and 59 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:59:16,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:59:16,133 INFO L93 Difference]: Finished difference Result 87 states and 124 transitions. [2024-10-24 08:59:16,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 08:59:16,135 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2024-10-24 08:59:16,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:59:16,137 INFO L225 Difference]: With dead ends: 87 [2024-10-24 08:59:16,139 INFO L226 Difference]: Without dead ends: 48 [2024-10-24 08:59:16,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-24 08:59:16,140 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 59 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 08:59:16,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 78 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 08:59:16,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-10-24 08:59:16,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2024-10-24 08:59:16,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 08:59:16,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2024-10-24 08:59:16,159 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 87 [2024-10-24 08:59:16,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:59:16,160 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2024-10-24 08:59:16,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:59:16,161 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2024-10-24 08:59:16,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-24 08:59:16,163 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:59:16,163 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:59:16,168 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-24 08:59:16,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 08:59:16,364 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:59:16,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:59:16,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1598081109, now seen corresponding path program 1 times [2024-10-24 08:59:16,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 08:59:16,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1638795394] [2024-10-24 08:59:16,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:59:16,365 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 08:59:16,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 08:59:16,374 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 08:59:16,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-24 08:59:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:16,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-24 08:59:16,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 08:59:38,553 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 165 proven. 27 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-10-24 08:59:38,554 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 08:59:53,473 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 08:59:53,474 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 08:59:53,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1638795394] [2024-10-24 08:59:53,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1638795394] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-24 08:59:53,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 08:59:53,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 19 [2024-10-24 08:59:53,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656378803] [2024-10-24 08:59:53,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:59:53,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 08:59:53,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 08:59:53,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 08:59:53,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-10-24 08:59:53,477 INFO L87 Difference]: Start difference. First operand 44 states and 60 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:59:58,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:59:58,501 INFO L93 Difference]: Finished difference Result 56 states and 74 transitions. [2024-10-24 08:59:58,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 08:59:58,502 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 88 [2024-10-24 08:59:58,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:59:58,503 INFO L225 Difference]: With dead ends: 56 [2024-10-24 08:59:58,504 INFO L226 Difference]: Without dead ends: 54 [2024-10-24 08:59:58,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=112, Invalid=394, Unknown=0, NotChecked=0, Total=506 [2024-10-24 08:59:58,505 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 13 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-24 08:59:58,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 245 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-24 08:59:58,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-10-24 08:59:58,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2024-10-24 08:59:58,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 35 states have (on average 1.2) internal successors, (42), 35 states have internal predecessors, (42), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 08:59:58,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 70 transitions. [2024-10-24 08:59:58,514 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 70 transitions. Word has length 88 [2024-10-24 08:59:58,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:59:58,514 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 70 transitions. [2024-10-24 08:59:58,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:59:58,515 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 70 transitions. [2024-10-24 08:59:58,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-24 08:59:58,516 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:59:58,516 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:59:58,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-10-24 08:59:58,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 08:59:58,718 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:59:58,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:59:58,718 INFO L85 PathProgramCache]: Analyzing trace with hash -518172434, now seen corresponding path program 1 times [2024-10-24 08:59:58,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 08:59:58,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186143965] [2024-10-24 08:59:58,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:59:58,719 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 08:59:58,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 08:59:58,724 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 08:59:58,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-24 08:59:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:59:58,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 08:59:58,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 09:00:10,561 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 165 proven. 27 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-10-24 09:00:10,561 INFO L311 TraceCheckSpWp]: Computing backward predicates...