/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-64.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 09:30:56,552 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 09:30:56,618 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 09:30:56,627 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 09:30:56,627 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 09:30:56,666 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 09:30:56,666 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 09:30:56,667 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 09:30:56,667 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 09:30:56,671 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 09:30:56,671 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 09:30:56,671 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 09:30:56,672 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 09:30:56,673 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 09:30:56,674 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 09:30:56,674 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 09:30:56,674 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 09:30:56,675 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 09:30:56,675 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 09:30:56,675 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 09:30:56,675 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 09:30:56,676 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 09:30:56,676 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 09:30:56,676 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 09:30:56,676 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 09:30:56,677 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 09:30:56,677 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 09:30:56,677 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 09:30:56,677 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 09:30:56,678 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 09:30:56,679 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 09:30:56,679 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 09:30:56,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 09:30:56,679 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 09:30:56,679 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 09:30:56,679 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 09:30:56,680 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 09:30:56,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 09:30:56,680 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 09:30:56,680 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 09:30:56,680 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 09:30:56,680 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 09:30:56,680 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 09:30:56,681 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 09:30:56,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 09:30:56,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 09:30:56,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 09:30:56,952 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 09:30:56,955 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 09:30:56,956 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-64.i [2023-12-19 09:30:58,248 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 09:30:58,474 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 09:30:58,474 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-64.i [2023-12-19 09:30:58,482 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4f0cca6a/156b579ba3d949a18293fe36815ec746/FLAG3fd50b579 [2023-12-19 09:30:58,496 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4f0cca6a/156b579ba3d949a18293fe36815ec746 [2023-12-19 09:30:58,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 09:30:58,500 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 09:30:58,501 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 09:30:58,501 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 09:30:58,506 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 09:30:58,507 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 09:30:58" (1/1) ... [2023-12-19 09:30:58,508 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dcef8ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:30:58, skipping insertion in model container [2023-12-19 09:30:58,508 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 09:30:58" (1/1) ... [2023-12-19 09:30:58,551 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 09:30:58,687 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-64.i[919,932] [2023-12-19 09:30:58,758 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 09:30:58,776 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 09:30:58,785 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-64.i[919,932] [2023-12-19 09:30:58,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 09:30:58,867 INFO L206 MainTranslator]: Completed translation [2023-12-19 09:30:58,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:30:58 WrapperNode [2023-12-19 09:30:58,870 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 09:30:58,872 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 09:30:58,872 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 09:30:58,872 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 09:30:58,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:30:58" (1/1) ... [2023-12-19 09:30:58,902 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:30:58" (1/1) ... [2023-12-19 09:30:58,944 INFO L138 Inliner]: procedures = 26, calls = 51, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 242 [2023-12-19 09:30:58,944 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 09:30:58,945 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 09:30:58,945 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 09:30:58,945 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 09:30:58,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:30:58" (1/1) ... [2023-12-19 09:30:58,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:30:58" (1/1) ... [2023-12-19 09:30:58,977 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:30:58" (1/1) ... [2023-12-19 09:30:58,992 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]. [2023-12-19 09:30:58,992 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:30:58" (1/1) ... [2023-12-19 09:30:58,993 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:30:58" (1/1) ... [2023-12-19 09:30:59,003 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:30:58" (1/1) ... [2023-12-19 09:30:59,006 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:30:58" (1/1) ... [2023-12-19 09:30:59,008 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:30:58" (1/1) ... [2023-12-19 09:30:59,010 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:30:58" (1/1) ... [2023-12-19 09:30:59,013 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 09:30:59,014 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 09:30:59,014 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 09:30:59,014 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 09:30:59,015 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:30:58" (1/1) ... [2023-12-19 09:30:59,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 09:30:59,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 09:30:59,053 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) [2023-12-19 09:30:59,083 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 [2023-12-19 09:30:59,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 09:30:59,090 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 09:30:59,090 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 09:30:59,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 09:30:59,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 09:30:59,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 09:30:59,194 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 09:30:59,196 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 09:30:59,681 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 09:30:59,718 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 09:30:59,718 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 09:30:59,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 09:30:59 BoogieIcfgContainer [2023-12-19 09:30:59,719 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 09:30:59,728 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 09:30:59,728 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 09:30:59,731 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 09:30:59,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 09:30:58" (1/3) ... [2023-12-19 09:30:59,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ba1491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 09:30:59, skipping insertion in model container [2023-12-19 09:30:59,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:30:58" (2/3) ... [2023-12-19 09:30:59,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ba1491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 09:30:59, skipping insertion in model container [2023-12-19 09:30:59,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 09:30:59" (3/3) ... [2023-12-19 09:30:59,734 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-64.i [2023-12-19 09:30:59,747 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 09:30:59,748 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 09:30:59,788 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 09:30:59,793 INFO L357 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, mHoare=true, 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;@20868117, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 09:30:59,793 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 09:30:59,797 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 55 states have (on average 1.4545454545454546) internal successors, (80), 56 states have internal predecessors, (80), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-19 09:30:59,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-12-19 09:30:59,834 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 09:30:59,835 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 09:30:59,835 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 09:30:59,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 09:30:59,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1832165425, now seen corresponding path program 1 times [2023-12-19 09:30:59,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 09:30:59,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657012600] [2023-12-19 09:30:59,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:30:59,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 09:31:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 09:31:00,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 09:31:00,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657012600] [2023-12-19 09:31:00,198 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 09:31:00,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276116470] [2023-12-19 09:31:00,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:31:00,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:31:00,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 09:31:00,204 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) [2023-12-19 09:31:00,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 09:31:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 09:31:00,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 09:31:00,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 09:31:00,537 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked. [2023-12-19 09:31:00,537 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 09:31:00,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276116470] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 09:31:00,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 09:31:00,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 09:31:00,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757378257] [2023-12-19 09:31:00,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 09:31:00,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 09:31:00,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 09:31:00,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 09:31:00,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 09:31:00,580 INFO L87 Difference]: Start difference. First operand has 96 states, 55 states have (on average 1.4545454545454546) internal successors, (80), 56 states have internal predecessors, (80), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-19 09:31:00,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 09:31:00,642 INFO L93 Difference]: Finished difference Result 189 states and 348 transitions. [2023-12-19 09:31:00,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 09:31:00,646 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 2 states have call successors, (38) Word has length 233 [2023-12-19 09:31:00,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 09:31:00,656 INFO L225 Difference]: With dead ends: 189 [2023-12-19 09:31:00,656 INFO L226 Difference]: Without dead ends: 94 [2023-12-19 09:31:00,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 09:31:00,670 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 09:31:00,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 09:31:00,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-19 09:31:00,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2023-12-19 09:31:00,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 54 states have internal predecessors, (75), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-19 09:31:00,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 151 transitions. [2023-12-19 09:31:00,741 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 151 transitions. Word has length 233 [2023-12-19 09:31:00,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 09:31:00,741 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 151 transitions. [2023-12-19 09:31:00,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-19 09:31:00,742 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 151 transitions. [2023-12-19 09:31:00,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-12-19 09:31:00,754 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 09:31:00,755 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 09:31:00,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 09:31:00,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-19 09:31:00,963 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 09:31:00,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 09:31:00,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1770981579, now seen corresponding path program 1 times [2023-12-19 09:31:00,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 09:31:00,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163085802] [2023-12-19 09:31:00,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:31:00,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 09:31:01,058 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 09:31:01,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [453413570] [2023-12-19 09:31:01,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:31:01,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:31:01,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 09:31:01,060 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) [2023-12-19 09:31:01,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 09:31:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 09:31:01,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-19 09:31:01,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 09:31:06,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-19 09:31:06,514 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 09:31:06,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 09:31:06,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163085802] [2023-12-19 09:31:06,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 09:31:06,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453413570] [2023-12-19 09:31:06,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453413570] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 09:31:06,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 09:31:06,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 09:31:06,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268386773] [2023-12-19 09:31:06,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 09:31:06,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 09:31:06,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 09:31:06,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 09:31:06,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-19 09:31:06,520 INFO L87 Difference]: Start difference. First operand 94 states and 151 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-19 09:31:06,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 09:31:06,857 INFO L93 Difference]: Finished difference Result 352 states and 561 transitions. [2023-12-19 09:31:06,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 09:31:06,858 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 233 [2023-12-19 09:31:06,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 09:31:06,862 INFO L225 Difference]: With dead ends: 352 [2023-12-19 09:31:06,863 INFO L226 Difference]: Without dead ends: 259 [2023-12-19 09:31:06,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-19 09:31:06,865 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 268 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 09:31:06,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 885 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 09:31:06,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-12-19 09:31:06,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 104. [2023-12-19 09:31:06,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 64 states have (on average 1.40625) internal successors, (90), 64 states have internal predecessors, (90), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-19 09:31:06,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 166 transitions. [2023-12-19 09:31:06,900 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 166 transitions. Word has length 233 [2023-12-19 09:31:06,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 09:31:06,904 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 166 transitions. [2023-12-19 09:31:06,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-19 09:31:06,904 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 166 transitions. [2023-12-19 09:31:06,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-12-19 09:31:06,907 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 09:31:06,907 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 09:31:06,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 09:31:07,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-19 09:31:07,116 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 09:31:07,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 09:31:07,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1843927347, now seen corresponding path program 1 times [2023-12-19 09:31:07,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 09:31:07,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380906549] [2023-12-19 09:31:07,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:31:07,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 09:31:07,163 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 09:31:07,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [650426934] [2023-12-19 09:31:07,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:31:07,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:31:07,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 09:31:07,166 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) [2023-12-19 09:31:07,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 09:31:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 09:31:07,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 09:31:07,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 09:31:08,193 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-19 09:31:08,193 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 09:31:08,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 09:31:08,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380906549] [2023-12-19 09:31:08,194 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 09:31:08,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650426934] [2023-12-19 09:31:08,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650426934] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 09:31:08,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 09:31:08,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 09:31:08,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552851550] [2023-12-19 09:31:08,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 09:31:08,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 09:31:08,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 09:31:08,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 09:31:08,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-19 09:31:08,197 INFO L87 Difference]: Start difference. First operand 104 states and 166 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-19 09:31:08,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 09:31:08,392 INFO L93 Difference]: Finished difference Result 300 states and 475 transitions. [2023-12-19 09:31:08,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 09:31:08,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 233 [2023-12-19 09:31:08,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 09:31:08,395 INFO L225 Difference]: With dead ends: 300 [2023-12-19 09:31:08,395 INFO L226 Difference]: Without dead ends: 197 [2023-12-19 09:31:08,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-19 09:31:08,397 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 156 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 09:31:08,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 740 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 09:31:08,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-12-19 09:31:08,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 104. [2023-12-19 09:31:08,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 64 states have (on average 1.40625) internal successors, (90), 64 states have internal predecessors, (90), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-19 09:31:08,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 166 transitions. [2023-12-19 09:31:08,411 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 166 transitions. Word has length 233 [2023-12-19 09:31:08,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 09:31:08,412 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 166 transitions. [2023-12-19 09:31:08,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-19 09:31:08,413 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 166 transitions. [2023-12-19 09:31:08,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-12-19 09:31:08,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 09:31:08,415 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 09:31:08,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 09:31:08,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:31:08,624 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 09:31:08,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 09:31:08,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1375860277, now seen corresponding path program 1 times [2023-12-19 09:31:08,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 09:31:08,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825557736] [2023-12-19 09:31:08,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:31:08,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 09:31:08,666 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 09:31:08,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [765958677] [2023-12-19 09:31:08,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:31:08,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:31:08,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 09:31:08,669 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) [2023-12-19 09:31:08,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 09:31:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 09:31:08,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 09:31:08,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 09:31:08,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-19 09:31:08,822 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 09:31:08,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 09:31:08,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825557736] [2023-12-19 09:31:08,823 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 09:31:08,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765958677] [2023-12-19 09:31:08,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765958677] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 09:31:08,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 09:31:08,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 09:31:08,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850473543] [2023-12-19 09:31:08,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 09:31:08,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 09:31:08,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 09:31:08,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 09:31:08,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 09:31:08,826 INFO L87 Difference]: Start difference. First operand 104 states and 166 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-19 09:31:08,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 09:31:08,867 INFO L93 Difference]: Finished difference Result 308 states and 492 transitions. [2023-12-19 09:31:08,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 09:31:08,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 233 [2023-12-19 09:31:08,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 09:31:08,869 INFO L225 Difference]: With dead ends: 308 [2023-12-19 09:31:08,869 INFO L226 Difference]: Without dead ends: 205 [2023-12-19 09:31:08,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 09:31:08,871 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 134 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 09:31:08,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 373 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 09:31:08,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-12-19 09:31:08,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 118. [2023-12-19 09:31:08,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 78 states have (on average 1.4743589743589745) internal successors, (115), 78 states have internal predecessors, (115), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-19 09:31:08,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 191 transitions. [2023-12-19 09:31:08,884 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 191 transitions. Word has length 233 [2023-12-19 09:31:08,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 09:31:08,885 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 191 transitions. [2023-12-19 09:31:08,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-19 09:31:08,885 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 191 transitions. [2023-12-19 09:31:08,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-12-19 09:31:08,887 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 09:31:08,887 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 09:31:08,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 09:31:09,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:31:09,096 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 09:31:09,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 09:31:09,097 INFO L85 PathProgramCache]: Analyzing trace with hash -695801907, now seen corresponding path program 1 times [2023-12-19 09:31:09,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 09:31:09,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658767605] [2023-12-19 09:31:09,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:31:09,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 09:31:09,124 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 09:31:09,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [8139728] [2023-12-19 09:31:09,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:31:09,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:31:09,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 09:31:09,125 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) [2023-12-19 09:31:09,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 09:31:09,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 09:31:09,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 09:31:09,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 09:31:10,093 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-19 09:31:10,093 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 09:31:10,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 09:31:10,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658767605] [2023-12-19 09:31:10,094 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 09:31:10,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8139728] [2023-12-19 09:31:10,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8139728] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 09:31:10,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 09:31:10,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 09:31:10,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66402702] [2023-12-19 09:31:10,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 09:31:10,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 09:31:10,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 09:31:10,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 09:31:10,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-19 09:31:10,096 INFO L87 Difference]: Start difference. First operand 118 states and 191 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-19 09:31:10,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 09:31:10,305 INFO L93 Difference]: Finished difference Result 397 states and 637 transitions. [2023-12-19 09:31:10,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 09:31:10,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 233 [2023-12-19 09:31:10,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 09:31:10,308 INFO L225 Difference]: With dead ends: 397 [2023-12-19 09:31:10,308 INFO L226 Difference]: Without dead ends: 280 [2023-12-19 09:31:10,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-19 09:31:10,309 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 258 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 09:31:10,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 662 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 09:31:10,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-12-19 09:31:10,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 118. [2023-12-19 09:31:10,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 78 states have (on average 1.4743589743589745) internal successors, (115), 78 states have internal predecessors, (115), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-19 09:31:10,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 191 transitions. [2023-12-19 09:31:10,322 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 191 transitions. Word has length 233 [2023-12-19 09:31:10,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 09:31:10,323 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 191 transitions. [2023-12-19 09:31:10,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-19 09:31:10,323 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 191 transitions. [2023-12-19 09:31:10,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-12-19 09:31:10,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 09:31:10,326 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 09:31:10,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 09:31:10,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:31:10,534 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 09:31:10,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 09:31:10,535 INFO L85 PathProgramCache]: Analyzing trace with hash 2101458569, now seen corresponding path program 1 times [2023-12-19 09:31:10,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 09:31:10,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923038226] [2023-12-19 09:31:10,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:31:10,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 09:31:10,570 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 09:31:10,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1775241550] [2023-12-19 09:31:10,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:31:10,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:31:10,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 09:31:10,571 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 09:31:10,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 09:31:10,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 09:31:10,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 09:31:10,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 09:31:12,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-19 09:31:12,077 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 09:31:12,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 09:31:12,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923038226] [2023-12-19 09:31:12,077 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 09:31:12,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775241550] [2023-12-19 09:31:12,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775241550] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 09:31:12,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 09:31:12,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 09:31:12,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218007790] [2023-12-19 09:31:12,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 09:31:12,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 09:31:12,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 09:31:12,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 09:31:12,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-19 09:31:12,079 INFO L87 Difference]: Start difference. First operand 118 states and 191 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-19 09:31:12,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 09:31:12,262 INFO L93 Difference]: Finished difference Result 397 states and 636 transitions. [2023-12-19 09:31:12,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 09:31:12,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 233 [2023-12-19 09:31:12,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 09:31:12,265 INFO L225 Difference]: With dead ends: 397 [2023-12-19 09:31:12,265 INFO L226 Difference]: Without dead ends: 280 [2023-12-19 09:31:12,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-19 09:31:12,269 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 248 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 09:31:12,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 685 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 09:31:12,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-12-19 09:31:12,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 112. [2023-12-19 09:31:12,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 72 states have (on average 1.4583333333333333) internal successors, (105), 72 states have internal predecessors, (105), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-19 09:31:12,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 181 transitions. [2023-12-19 09:31:12,284 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 181 transitions. Word has length 233 [2023-12-19 09:31:12,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 09:31:12,284 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 181 transitions. [2023-12-19 09:31:12,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-19 09:31:12,285 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 181 transitions. [2023-12-19 09:31:12,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-12-19 09:31:12,287 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 09:31:12,288 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 09:31:12,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 09:31:12,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:31:12,495 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 09:31:12,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 09:31:12,496 INFO L85 PathProgramCache]: Analyzing trace with hash 744060592, now seen corresponding path program 1 times [2023-12-19 09:31:12,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 09:31:12,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802241073] [2023-12-19 09:31:12,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:31:12,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 09:31:12,531 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 09:31:12,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [598850250] [2023-12-19 09:31:12,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:31:12,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:31:12,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 09:31:12,533 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 09:31:12,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 09:31:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 09:31:12,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-19 09:31:12,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 09:31:30,444 WARN L293 SmtUtils]: Spent 6.71s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 09:31:49,316 WARN L293 SmtUtils]: Spent 5.42s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 09:32:20,565 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 09:33:06,766 WARN L293 SmtUtils]: Spent 25.14s on a formula simplification that was a NOOP. DAG size: 121 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 09:34:37,261 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 09:34:51,801 WARN L293 SmtUtils]: Spent 5.37s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 09:35:48,985 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 09:36:22,255 WARN L293 SmtUtils]: Spent 5.75s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 09:36:45,012 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 09:36:51,792 WARN L293 SmtUtils]: Spent 6.78s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 09:37:07,859 WARN L293 SmtUtils]: Spent 5.42s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 09:37:35,666 WARN L293 SmtUtils]: Spent 5.73s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 09:38:12,928 WARN L293 SmtUtils]: Spent 6.81s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 09:39:05,652 WARN L293 SmtUtils]: Spent 5.71s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 09:39:25,709 WARN L293 SmtUtils]: Spent 7.00s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 09:40:52,290 WARN L293 SmtUtils]: Spent 17.28s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 09:41:22,504 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 09:42:01,706 WARN L293 SmtUtils]: Spent 5.40s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 09:42:23,687 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 09:44:10,666 WARN L293 SmtUtils]: Spent 44.68s on a formula simplification. DAG size of input: 125 DAG size of output: 103 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-12-19 09:45:32,247 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 09:45:32,247 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 09:45:32,434 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 09:45:32,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 09:45:32,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:45:32,638 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 236 with TraceHistMax 38,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-63-2-2-3-2-3-2-3-2-3-2-2-2-3-2-3-2-2-2-3-2-2-2-3-2-3-2-3-2-2-2-2-2-3-2-2-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-1 context. [2023-12-19 09:45:32,642 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-19 09:45:32,646 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 09:45:32,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 09:45:32 BoogieIcfgContainer [2023-12-19 09:45:32,650 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 09:45:32,653 INFO L158 Benchmark]: Toolchain (without parser) took 874153.11ms. Allocated memory was 273.7MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 220.8MB in the beginning and 890.4MB in the end (delta: -669.6MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2023-12-19 09:45:32,653 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 187.7MB. Free memory is still 131.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 09:45:32,653 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.00ms. Allocated memory is still 273.7MB. Free memory was 220.8MB in the beginning and 205.1MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-19 09:45:32,654 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.87ms. Allocated memory is still 273.7MB. Free memory was 205.1MB in the beginning and 201.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-19 09:45:32,654 INFO L158 Benchmark]: Boogie Preprocessor took 67.56ms. Allocated memory is still 273.7MB. Free memory was 201.9MB in the beginning and 197.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 09:45:32,654 INFO L158 Benchmark]: RCFGBuilder took 705.25ms. Allocated memory is still 273.7MB. Free memory was 197.7MB in the beginning and 171.0MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2023-12-19 09:45:32,655 INFO L158 Benchmark]: TraceAbstraction took 872924.30ms. Allocated memory was 273.7MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 169.9MB in the beginning and 890.4MB in the end (delta: -720.4MB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2023-12-19 09:45:32,656 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 187.7MB. Free memory is still 131.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 370.00ms. Allocated memory is still 273.7MB. Free memory was 220.8MB in the beginning and 205.1MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 72.87ms. Allocated memory is still 273.7MB. Free memory was 205.1MB in the beginning and 201.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 67.56ms. Allocated memory is still 273.7MB. Free memory was 201.9MB in the beginning and 197.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 705.25ms. Allocated memory is still 273.7MB. Free memory was 197.7MB in the beginning and 171.0MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * TraceAbstraction took 872924.30ms. Allocated memory was 273.7MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 169.9MB in the beginning and 890.4MB in the end (delta: -720.4MB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. * 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 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 236 with TraceHistMax 38,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-63-2-2-3-2-3-2-3-2-3-2-2-2-3-2-3-2-2-2-3-2-2-2-3-2-3-2-3-2-2-2-2-2-3-2-2-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 872.9s, OverallIterations: 7, TraceHistogramMax: 38, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1064 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1064 mSDsluCounter, 3492 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1958 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 639 IncrementalHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 1534 mSDtfsCounter, 639 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1400 GetRequests, 1379 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=4, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 665 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 1631 NumberOfCodeBlocks, 1631 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1392 ConstructedInterpolants, 0 QuantifiedInterpolants, 1674 SizeOfPredicates, 12 NumberOfNonLiveVariables, 3214 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 16872/16872 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: Timeout Completed graceful shutdown