./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_codestructure_steplocals_file-31.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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_codestructure_steplocals_file-31.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 03d835ae0f5254051c76fe843ada786539d5c0764f9b6c3f4a14055841d40caa --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 07:39:52,700 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 07:39:52,771 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 07:39:52,778 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 07:39:52,779 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 07:39:52,805 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 07:39:52,806 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 07:39:52,806 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 07:39:52,807 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 07:39:52,808 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 07:39:52,808 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 07:39:52,809 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 07:39:52,809 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 07:39:52,810 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 07:39:52,810 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 07:39:52,810 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 07:39:52,811 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 07:39:52,814 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 07:39:52,815 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 07:39:52,815 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 07:39:52,815 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 07:39:52,816 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 07:39:52,816 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 07:39:52,816 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 07:39:52,817 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 07:39:52,817 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 07:39:52,817 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 07:39:52,817 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 07:39:52,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 07:39:52,818 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 07:39:52,819 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 07:39:52,819 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 07:39:52,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 07:39:52,820 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 07:39:52,820 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 07:39:52,820 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 07:39:52,821 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 07:39:52,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 07:39:52,821 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 07:39:52,821 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 07:39:52,822 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 07:39:52,822 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 07:39:52,822 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03d835ae0f5254051c76fe843ada786539d5c0764f9b6c3f4a14055841d40caa [2024-10-14 07:39:53,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 07:39:53,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 07:39:53,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 07:39:53,110 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 07:39:53,110 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 07:39:53,111 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-31.i [2024-10-14 07:39:54,510 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 07:39:54,706 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 07:39:54,707 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-31.i [2024-10-14 07:39:54,723 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6cc97f6c/03d7eea668ca41009ab042e2fa269a71/FLAG9537cc328 [2024-10-14 07:39:55,087 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6cc97f6c/03d7eea668ca41009ab042e2fa269a71 [2024-10-14 07:39:55,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 07:39:55,091 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 07:39:55,092 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 07:39:55,092 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 07:39:55,096 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 07:39:55,097 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:39:55" (1/1) ... [2024-10-14 07:39:55,098 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6654e2e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:39:55, skipping insertion in model container [2024-10-14 07:39:55,098 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:39:55" (1/1) ... [2024-10-14 07:39:55,127 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 07:39:55,275 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_codestructure_steplocals_file-31.i[917,930] [2024-10-14 07:39:55,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 07:39:55,340 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 07:39:55,356 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_codestructure_steplocals_file-31.i[917,930] [2024-10-14 07:39:55,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 07:39:55,435 INFO L204 MainTranslator]: Completed translation [2024-10-14 07:39:55,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:39:55 WrapperNode [2024-10-14 07:39:55,436 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 07:39:55,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 07:39:55,438 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 07:39:55,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 07:39:55,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:39:55" (1/1) ... [2024-10-14 07:39:55,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:39:55" (1/1) ... [2024-10-14 07:39:55,518 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 151 [2024-10-14 07:39:55,520 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 07:39:55,521 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 07:39:55,521 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 07:39:55,521 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 07:39:55,531 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:39:55" (1/1) ... [2024-10-14 07:39:55,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:39:55" (1/1) ... [2024-10-14 07:39:55,536 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:39:55" (1/1) ... [2024-10-14 07:39:55,577 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]. [2024-10-14 07:39:55,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:39:55" (1/1) ... [2024-10-14 07:39:55,579 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:39:55" (1/1) ... [2024-10-14 07:39:55,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:39:55" (1/1) ... [2024-10-14 07:39:55,590 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:39:55" (1/1) ... [2024-10-14 07:39:55,592 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:39:55" (1/1) ... [2024-10-14 07:39:55,598 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:39:55" (1/1) ... [2024-10-14 07:39:55,606 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 07:39:55,607 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 07:39:55,607 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 07:39:55,607 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 07:39:55,608 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:39:55" (1/1) ... [2024-10-14 07:39:55,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 07:39:55,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 07:39:55,680 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) [2024-10-14 07:39:55,683 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 [2024-10-14 07:39:55,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 07:39:55,726 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 07:39:55,727 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 07:39:55,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 07:39:55,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 07:39:55,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 07:39:55,807 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 07:39:55,809 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 07:39:56,135 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-10-14 07:39:56,135 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 07:39:56,194 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 07:39:56,194 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 07:39:56,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:39:56 BoogieIcfgContainer [2024-10-14 07:39:56,195 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 07:39:56,200 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 07:39:56,200 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 07:39:56,204 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 07:39:56,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:39:55" (1/3) ... [2024-10-14 07:39:56,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7670711a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:39:56, skipping insertion in model container [2024-10-14 07:39:56,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:39:55" (2/3) ... [2024-10-14 07:39:56,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7670711a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:39:56, skipping insertion in model container [2024-10-14 07:39:56,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:39:56" (3/3) ... [2024-10-14 07:39:56,208 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-31.i [2024-10-14 07:39:56,229 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 07:39:56,230 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 07:39:56,309 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 07:39:56,319 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;@7ccfcbb9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 07:39:56,320 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 07:39:56,325 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 35 states have (on average 1.4) internal successors, (49), 36 states have internal predecessors, (49), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-14 07:39:56,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-14 07:39:56,340 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:39:56,342 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:39:56,343 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:39:56,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:39:56,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1106142530, now seen corresponding path program 1 times [2024-10-14 07:39:56,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:39:56,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173905115] [2024-10-14 07:39:56,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:39:56,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:39:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 07:39:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 07:39:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 07:39:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 07:39:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 07:39:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 07:39:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 07:39:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 07:39:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 07:39:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 07:39:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 07:39:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 07:39:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 07:39:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 07:39:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 07:39:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 07:39:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 07:39:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 07:39:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 07:39:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 07:39:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 07:39:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 07:39:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 07:39:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 07:39:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 07:39:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 07:39:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:56,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-14 07:39:56,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:39:56,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173905115] [2024-10-14 07:39:56,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173905115] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:39:56,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:39:56,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 07:39:56,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682878330] [2024-10-14 07:39:56,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:39:56,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 07:39:56,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:39:56,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 07:39:56,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 07:39:56,830 INFO L87 Difference]: Start difference. First operand has 64 states, 35 states have (on average 1.4) internal successors, (49), 36 states have internal predecessors, (49), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-14 07:39:56,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:39:56,869 INFO L93 Difference]: Finished difference Result 125 states and 226 transitions. [2024-10-14 07:39:56,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 07:39:56,872 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 156 [2024-10-14 07:39:56,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:39:56,879 INFO L225 Difference]: With dead ends: 125 [2024-10-14 07:39:56,879 INFO L226 Difference]: Without dead ends: 62 [2024-10-14 07:39:56,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 07:39:56,889 INFO L432 NwaCegarLoop]: 93 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, 93 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 [2024-10-14 07:39:56,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:39:56,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-14 07:39:56,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-10-14 07:39:56,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 34 states have internal predecessors, (44), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-14 07:39:56,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 96 transitions. [2024-10-14 07:39:56,938 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 96 transitions. Word has length 156 [2024-10-14 07:39:56,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:39:56,939 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 96 transitions. [2024-10-14 07:39:56,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-14 07:39:56,940 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 96 transitions. [2024-10-14 07:39:56,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-14 07:39:56,943 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:39:56,944 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:39:56,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 07:39:56,944 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:39:56,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:39:56,945 INFO L85 PathProgramCache]: Analyzing trace with hash 29871102, now seen corresponding path program 1 times [2024-10-14 07:39:56,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:39:56,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134968524] [2024-10-14 07:39:56,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:39:56,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:39:57,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 07:39:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 07:39:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 07:39:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 07:39:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 07:39:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 07:39:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 07:39:57,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 07:39:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 07:39:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 07:39:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 07:39:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 07:39:57,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 07:39:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 07:39:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 07:39:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 07:39:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 07:39:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 07:39:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 07:39:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 07:39:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 07:39:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 07:39:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 07:39:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 07:39:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 07:39:57,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 07:39:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:39:57,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-14 07:39:57,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:39:57,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134968524] [2024-10-14 07:39:57,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134968524] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:39:57,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:39:57,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:39:57,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027568971] [2024-10-14 07:39:57,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:39:57,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 07:39:57,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:39:57,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 07:39:57,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:39:57,576 INFO L87 Difference]: Start difference. First operand 62 states and 96 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-14 07:39:57,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:39:57,654 INFO L93 Difference]: Finished difference Result 140 states and 216 transitions. [2024-10-14 07:39:57,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 07:39:57,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 156 [2024-10-14 07:39:57,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:39:57,658 INFO L225 Difference]: With dead ends: 140 [2024-10-14 07:39:57,659 INFO L226 Difference]: Without dead ends: 79 [2024-10-14 07:39:57,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:39:57,663 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 18 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:39:57,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 279 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:39:57,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-10-14 07:39:57,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 69. [2024-10-14 07:39:57,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 41 states have internal predecessors, (54), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-14 07:39:57,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 106 transitions. [2024-10-14 07:39:57,677 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 106 transitions. Word has length 156 [2024-10-14 07:39:57,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:39:57,679 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 106 transitions. [2024-10-14 07:39:57,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-14 07:39:57,679 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 106 transitions. [2024-10-14 07:39:57,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-14 07:39:57,681 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:39:57,682 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:39:57,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 07:39:57,682 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:39:57,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:39:57,683 INFO L85 PathProgramCache]: Analyzing trace with hash 730935680, now seen corresponding path program 1 times [2024-10-14 07:39:57,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:39:57,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786525691] [2024-10-14 07:39:57,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:39:57,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:39:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat