/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_fillercodesize_normal_file-34.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 19:38:27,000 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 19:38:27,064 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 19:38:27,067 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 19:38:27,067 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 19:38:27,090 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 19:38:27,090 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 19:38:27,091 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 19:38:27,091 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 19:38:27,094 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 19:38:27,094 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 19:38:27,095 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 19:38:27,095 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 19:38:27,096 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 19:38:27,096 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 19:38:27,096 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 19:38:27,097 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 19:38:27,097 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 19:38:27,097 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 19:38:27,098 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 19:38:27,098 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 19:38:27,098 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 19:38:27,098 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 19:38:27,099 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 19:38:27,099 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 19:38:27,099 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 19:38:27,099 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 19:38:27,099 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 19:38:27,100 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 19:38:27,100 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 19:38:27,100 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 19:38:27,101 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 19:38:27,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 19:38:27,101 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 19:38:27,101 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 19:38:27,101 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 19:38:27,101 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 19:38:27,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 19:38:27,102 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 19:38:27,102 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 19:38:27,102 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 19:38:27,102 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 19:38:27,102 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 19:38:27,103 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 19:38:27,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 19:38:27,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 19:38:27,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 19:38:27,320 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 19:38:27,320 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 19:38:27,321 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-34.i [2023-12-15 19:38:28,312 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 19:38:28,492 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 19:38:28,493 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-34.i [2023-12-15 19:38:28,500 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebb69a72e/410f6c5988b145c58b1b44533d4d6b6a/FLAGcc2228af9 [2023-12-15 19:38:28,515 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebb69a72e/410f6c5988b145c58b1b44533d4d6b6a [2023-12-15 19:38:28,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 19:38:28,518 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 19:38:28,520 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 19:38:28,520 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 19:38:28,523 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 19:38:28,524 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 07:38:28" (1/1) ... [2023-12-15 19:38:28,525 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec837de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:38:28, skipping insertion in model container [2023-12-15 19:38:28,525 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 07:38:28" (1/1) ... [2023-12-15 19:38:28,555 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 19:38:28,674 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_fillercodesize_normal_file-34.i[913,926] [2023-12-15 19:38:28,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 19:38:28,739 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 19:38:28,746 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_fillercodesize_normal_file-34.i[913,926] [2023-12-15 19:38:28,761 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 19:38:28,771 INFO L206 MainTranslator]: Completed translation [2023-12-15 19:38:28,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:38:28 WrapperNode [2023-12-15 19:38:28,772 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 19:38:28,773 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 19:38:28,773 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 19:38:28,773 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 19:38:28,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:38:28" (1/1) ... [2023-12-15 19:38:28,785 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:38:28" (1/1) ... [2023-12-15 19:38:28,816 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 176 [2023-12-15 19:38:28,816 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 19:38:28,817 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 19:38:28,817 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 19:38:28,817 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 19:38:28,829 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:38:28" (1/1) ... [2023-12-15 19:38:28,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:38:28" (1/1) ... [2023-12-15 19:38:28,831 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:38:28" (1/1) ... [2023-12-15 19:38:28,843 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]. [2023-12-15 19:38:28,843 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:38:28" (1/1) ... [2023-12-15 19:38:28,843 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:38:28" (1/1) ... [2023-12-15 19:38:28,852 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:38:28" (1/1) ... [2023-12-15 19:38:28,854 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:38:28" (1/1) ... [2023-12-15 19:38:28,856 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:38:28" (1/1) ... [2023-12-15 19:38:28,857 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:38:28" (1/1) ... [2023-12-15 19:38:28,860 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 19:38:28,860 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 19:38:28,860 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 19:38:28,860 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 19:38:28,861 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:38:28" (1/1) ... [2023-12-15 19:38:28,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 19:38:28,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:38:28,883 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) [2023-12-15 19:38:28,903 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 [2023-12-15 19:38:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 19:38:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 19:38:28,916 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 19:38:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 19:38:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 19:38:28,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 19:38:29,000 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 19:38:29,002 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 19:38:29,339 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 19:38:29,369 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 19:38:29,369 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 19:38:29,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 07:38:29 BoogieIcfgContainer [2023-12-15 19:38:29,369 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 19:38:29,371 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 19:38:29,371 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 19:38:29,373 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 19:38:29,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 07:38:28" (1/3) ... [2023-12-15 19:38:29,373 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11430485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 07:38:29, skipping insertion in model container [2023-12-15 19:38:29,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:38:28" (2/3) ... [2023-12-15 19:38:29,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11430485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 07:38:29, skipping insertion in model container [2023-12-15 19:38:29,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 07:38:29" (3/3) ... [2023-12-15 19:38:29,374 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_normal_file-34.i [2023-12-15 19:38:29,386 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 19:38:29,387 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 19:38:29,423 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 19:38:29,428 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;@9652c8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 19:38:29,428 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 19:38:29,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 45 states have (on average 1.6) internal successors, (72), 46 states have internal predecessors, (72), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-15 19:38:29,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-15 19:38:29,441 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:38:29,442 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:38:29,442 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:38:29,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:38:29,447 INFO L85 PathProgramCache]: Analyzing trace with hash -891774575, now seen corresponding path program 1 times [2023-12-15 19:38:29,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:38:29,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357350507] [2023-12-15 19:38:29,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:38:29,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:38:29,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:38:29,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:38:29,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357350507] [2023-12-15 19:38:29,607 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-15 19:38:29,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070775289] [2023-12-15 19:38:29,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:38:29,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:38:29,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:38:29,612 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) [2023-12-15 19:38:29,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 19:38:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:38:29,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 19:38:29,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 19:38:29,761 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-12-15 19:38:29,761 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 19:38:29,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070775289] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:38:29,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:38:29,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 19:38:29,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994750042] [2023-12-15 19:38:29,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:38:29,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 19:38:29,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:38:29,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 19:38:29,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 19:38:29,790 INFO L87 Difference]: Start difference. First operand has 61 states, 45 states have (on average 1.6) internal successors, (72), 46 states have internal predecessors, (72), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 19:38:29,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:38:29,822 INFO L93 Difference]: Finished difference Result 119 states and 207 transitions. [2023-12-15 19:38:29,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 19:38:29,824 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 90 [2023-12-15 19:38:29,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:38:29,830 INFO L225 Difference]: With dead ends: 119 [2023-12-15 19:38:29,830 INFO L226 Difference]: Without dead ends: 59 [2023-12-15 19:38:29,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 19:38:29,834 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 19:38:29,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 19:38:29,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-12-15 19:38:29,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-12-15 19:38:29,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 44 states have (on average 1.5227272727272727) internal successors, (67), 44 states have internal predecessors, (67), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-15 19:38:29,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 93 transitions. [2023-12-15 19:38:29,867 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 93 transitions. Word has length 90 [2023-12-15 19:38:29,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:38:29,867 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 93 transitions. [2023-12-15 19:38:29,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 19:38:29,867 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 93 transitions. [2023-12-15 19:38:29,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-15 19:38:29,872 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:38:29,872 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:38:29,882 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-15 19:38:30,078 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 [2023-12-15 19:38:30,078 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:38:30,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:38:30,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1865726257, now seen corresponding path program 1 times [2023-12-15 19:38:30,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:38:30,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626335153] [2023-12-15 19:38:30,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:38:30,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:38:30,118 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 19:38:30,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1889872860] [2023-12-15 19:38:30,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:38:30,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:38:30,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:38:30,124 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) [2023-12-15 19:38:30,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 19:38:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:38:30,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-15 19:38:30,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 19:38:30,360 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 19:38:30,360 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 19:38:30,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:38:30,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626335153] [2023-12-15 19:38:30,360 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 19:38:30,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889872860] [2023-12-15 19:38:30,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889872860] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:38:30,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:38:30,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 19:38:30,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823123466] [2023-12-15 19:38:30,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:38:30,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 19:38:30,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:38:30,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 19:38:30,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 19:38:30,364 INFO L87 Difference]: Start difference. First operand 59 states and 93 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 19:38:30,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:38:30,551 INFO L93 Difference]: Finished difference Result 176 states and 276 transitions. [2023-12-15 19:38:30,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 19:38:30,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 90 [2023-12-15 19:38:30,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:38:30,552 INFO L225 Difference]: With dead ends: 176 [2023-12-15 19:38:30,553 INFO L226 Difference]: Without dead ends: 118 [2023-12-15 19:38:30,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 19:38:30,554 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 117 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 19:38:30,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 325 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 19:38:30,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-12-15 19:38:30,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 61. [2023-12-15 19:38:30,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 46 states have (on average 1.5) internal successors, (69), 46 states have internal predecessors, (69), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-15 19:38:30,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 95 transitions. [2023-12-15 19:38:30,563 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 95 transitions. Word has length 90 [2023-12-15 19:38:30,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:38:30,564 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 95 transitions. [2023-12-15 19:38:30,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 19:38:30,564 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 95 transitions. [2023-12-15 19:38:30,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 19:38:30,565 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:38:30,566 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:38:30,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 19:38:30,771 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 [2023-12-15 19:38:30,771 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:38:30,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:38:30,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1740875413, now seen corresponding path program 1 times [2023-12-15 19:38:30,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:38:30,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737342648] [2023-12-15 19:38:30,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:38:30,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:38:30,795 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 19:38:30,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1704149066] [2023-12-15 19:38:30,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:38:30,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:38:30,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:38:30,797 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) [2023-12-15 19:38:30,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 19:38:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:38:30,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-15 19:38:30,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 19:38:31,025 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 19:38:31,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 19:38:31,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:38:31,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737342648] [2023-12-15 19:38:31,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 19:38:31,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704149066] [2023-12-15 19:38:31,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704149066] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:38:31,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:38:31,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:38:31,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588852810] [2023-12-15 19:38:31,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:38:31,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 19:38:31,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:38:31,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 19:38:31,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 19:38:31,027 INFO L87 Difference]: Start difference. First operand 61 states and 95 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 19:38:31,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:38:31,102 INFO L93 Difference]: Finished difference Result 210 states and 327 transitions. [2023-12-15 19:38:31,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 19:38:31,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 91 [2023-12-15 19:38:31,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:38:31,104 INFO L225 Difference]: With dead ends: 210 [2023-12-15 19:38:31,104 INFO L226 Difference]: Without dead ends: 150 [2023-12-15 19:38:31,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 19:38:31,105 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 113 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 19:38:31,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 295 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 19:38:31,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-12-15 19:38:31,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 121. [2023-12-15 19:38:31,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 92 states have (on average 1.4891304347826086) internal successors, (137), 92 states have internal predecessors, (137), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-15 19:38:31,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 189 transitions. [2023-12-15 19:38:31,118 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 189 transitions. Word has length 91 [2023-12-15 19:38:31,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:38:31,118 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 189 transitions. [2023-12-15 19:38:31,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 19:38:31,118 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 189 transitions. [2023-12-15 19:38:31,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-15 19:38:31,119 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:38:31,119 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:38:31,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 19:38:31,322 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 [2023-12-15 19:38:31,322 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:38:31,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:38:31,323 INFO L85 PathProgramCache]: Analyzing trace with hash 926432231, now seen corresponding path program 1 times [2023-12-15 19:38:31,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:38:31,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851026344] [2023-12-15 19:38:31,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:38:31,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:38:31,343 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 19:38:31,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [483118504] [2023-12-15 19:38:31,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:38:31,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:38:31,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:38:31,345 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) [2023-12-15 19:38:31,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 19:38:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:38:31,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-15 19:38:31,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 19:38:34,712 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 213 proven. 45 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-12-15 19:38:34,712 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 19:38:40,768 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 19:38:40,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:38:40,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851026344] [2023-12-15 19:38:40,769 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 19:38:40,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483118504] [2023-12-15 19:38:40,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483118504] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-15 19:38:40,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 19:38:40,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [19] total 26 [2023-12-15 19:38:40,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866316005] [2023-12-15 19:38:40,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:38:40,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 19:38:40,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:38:40,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 19:38:40,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=521, Unknown=0, NotChecked=0, Total=650 [2023-12-15 19:38:40,771 INFO L87 Difference]: Start difference. First operand 121 states and 189 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 19:38:53,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:38:53,579 INFO L93 Difference]: Finished difference Result 367 states and 559 transitions. [2023-12-15 19:38:53,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-15 19:38:53,580 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 92 [2023-12-15 19:38:53,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:38:53,581 INFO L225 Difference]: With dead ends: 367 [2023-12-15 19:38:53,581 INFO L226 Difference]: Without dead ends: 247 [2023-12-15 19:38:53,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=203, Invalid=919, Unknown=0, NotChecked=0, Total=1122 [2023-12-15 19:38:53,583 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 298 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-12-15 19:38:53,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 404 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-12-15 19:38:53,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-12-15 19:38:53,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 162. [2023-12-15 19:38:53,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 126 states have (on average 1.4523809523809523) internal successors, (183), 127 states have internal predecessors, (183), 31 states have call successors, (31), 4 states have call predecessors, (31), 4 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-15 19:38:53,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 245 transitions. [2023-12-15 19:38:53,597 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 245 transitions. Word has length 92 [2023-12-15 19:38:53,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:38:53,597 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 245 transitions. [2023-12-15 19:38:53,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 19:38:53,597 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 245 transitions. [2023-12-15 19:38:53,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-15 19:38:53,598 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:38:53,599 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:38:53,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 19:38:53,804 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 [2023-12-15 19:38:53,804 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:38:53,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:38:53,805 INFO L85 PathProgramCache]: Analyzing trace with hash 983690533, now seen corresponding path program 1 times [2023-12-15 19:38:53,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:38:53,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030458948] [2023-12-15 19:38:53,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:38:53,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:38:53,836 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 19:38:53,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [585637823] [2023-12-15 19:38:53,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:38:53,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:38:53,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:38:53,847 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) [2023-12-15 19:38:53,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 19:38:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:38:53,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-15 19:38:53,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 19:38:57,902 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 19:38:57,902 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 19:38:57,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:38:57,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030458948] [2023-12-15 19:38:57,903 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 19:38:57,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585637823] [2023-12-15 19:38:57,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585637823] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:38:57,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:38:57,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-15 19:38:57,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040230843] [2023-12-15 19:38:57,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:38:57,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 19:38:57,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:38:57,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 19:38:57,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-15 19:38:57,904 INFO L87 Difference]: Start difference. First operand 162 states and 245 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 19:39:03,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:39:03,508 INFO L93 Difference]: Finished difference Result 504 states and 755 transitions. [2023-12-15 19:39:03,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-15 19:39:03,508 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 92 [2023-12-15 19:39:03,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:39:03,511 INFO L225 Difference]: With dead ends: 504 [2023-12-15 19:39:03,511 INFO L226 Difference]: Without dead ends: 427 [2023-12-15 19:39:03,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2023-12-15 19:39:03,513 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 407 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-15 19:39:03,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 687 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-15 19:39:03,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2023-12-15 19:39:03,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 373. [2023-12-15 19:39:03,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 292 states have (on average 1.4349315068493151) internal successors, (419), 293 states have internal predecessors, (419), 70 states have call successors, (70), 10 states have call predecessors, (70), 10 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-15 19:39:03,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 559 transitions. [2023-12-15 19:39:03,542 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 559 transitions. Word has length 92 [2023-12-15 19:39:03,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:39:03,542 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 559 transitions. [2023-12-15 19:39:03,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 19:39:03,542 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 559 transitions. [2023-12-15 19:39:03,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-15 19:39:03,543 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:39:03,543 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:39:03,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-15 19:39:03,752 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 [2023-12-15 19:39:03,752 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:39:03,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:39:03,753 INFO L85 PathProgramCache]: Analyzing trace with hash 117085605, now seen corresponding path program 1 times [2023-12-15 19:39:03,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:39:03,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814157453] [2023-12-15 19:39:03,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:39:03,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:39:03,767 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 19:39:03,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1544291837] [2023-12-15 19:39:03,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:39:03,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:39:03,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:39:03,769 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) [2023-12-15 19:39:03,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 19:39:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:39:04,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-15 19:39:04,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 19:39:05,096 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 96 proven. 30 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-12-15 19:39:05,096 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 19:39:31,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:39:31,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814157453] [2023-12-15 19:39:31,991 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 19:39:31,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544291837] [2023-12-15 19:39:31,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544291837] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 19:39:31,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-15 19:39:31,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-12-15 19:39:31,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494230539] [2023-12-15 19:39:31,992 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-15 19:39:31,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-15 19:39:31,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:39:31,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-15 19:39:31,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2023-12-15 19:39:31,993 INFO L87 Difference]: Start difference. First operand 373 states and 559 transitions. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 19:39:33,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:39:33,798 INFO L93 Difference]: Finished difference Result 1051 states and 1567 transitions. [2023-12-15 19:39:33,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-15 19:39:33,799 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 92 [2023-12-15 19:39:33,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:39:33,803 INFO L225 Difference]: With dead ends: 1051 [2023-12-15 19:39:33,803 INFO L226 Difference]: Without dead ends: 686 [2023-12-15 19:39:33,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=233, Invalid=957, Unknown=0, NotChecked=0, Total=1190 [2023-12-15 19:39:33,806 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 276 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 19:39:33,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 479 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 19:39:33,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2023-12-15 19:39:33,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 542. [2023-12-15 19:39:33,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 451 states have (on average 1.4368070953436807) internal successors, (648), 451 states have internal predecessors, (648), 78 states have call successors, (78), 12 states have call predecessors, (78), 12 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-15 19:39:33,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 804 transitions. [2023-12-15 19:39:33,848 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 804 transitions. Word has length 92 [2023-12-15 19:39:33,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:39:33,849 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 804 transitions. [2023-12-15 19:39:33,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 19:39:33,849 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 804 transitions. [2023-12-15 19:39:33,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-15 19:39:33,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:39:33,853 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:39:33,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-15 19:39:34,063 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 [2023-12-15 19:39:34,063 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:39:34,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:39:34,064 INFO L85 PathProgramCache]: Analyzing trace with hash 174343907, now seen corresponding path program 1 times [2023-12-15 19:39:34,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:39:34,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466635408] [2023-12-15 19:39:34,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:39:34,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:39:34,077 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 19:39:34,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1641661593] [2023-12-15 19:39:34,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:39:34,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:39:34,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:39:34,078 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) [2023-12-15 19:39:34,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-15 19:39:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:39:34,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-15 19:39:34,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-15 19:39:37,260 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 19:39:37,269 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 [2023-12-15 19:39:37,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-15 19:39:37,286 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 [2023-12-15 19:39:37,466 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 [2023-12-15 19:39:37,467 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 93 with TraceHistMax 13,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-2-2-2-2-3-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-19-5-2-3-2-3-3-2-3-2-2-1 context. [2023-12-15 19:39:37,471 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:39:37,472 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 19:39:37,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 07:39:37 BoogieIcfgContainer [2023-12-15 19:39:37,474 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 19:39:37,474 INFO L158 Benchmark]: Toolchain (without parser) took 68956.49ms. Allocated memory was 305.1MB in the beginning and 528.5MB in the end (delta: 223.3MB). Free memory was 252.3MB in the beginning and 485.1MB in the end (delta: -232.7MB). Peak memory consumption was 303.6MB. Max. memory is 8.0GB. [2023-12-15 19:39:37,474 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 221.2MB. Free memory is still 170.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 19:39:37,475 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.38ms. Allocated memory is still 305.1MB. Free memory was 252.0MB in the beginning and 238.3MB in the end (delta: 13.8MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-15 19:39:37,475 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.75ms. Allocated memory is still 305.1MB. Free memory was 238.3MB in the beginning and 234.7MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-15 19:39:37,475 INFO L158 Benchmark]: Boogie Preprocessor took 42.70ms. Allocated memory is still 305.1MB. Free memory was 234.7MB in the beginning and 229.4MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-15 19:39:37,475 INFO L158 Benchmark]: RCFGBuilder took 509.10ms. Allocated memory is still 305.1MB. Free memory was 229.4MB in the beginning and 266.5MB in the end (delta: -37.1MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-15 19:39:37,476 INFO L158 Benchmark]: TraceAbstraction took 68103.42ms. Allocated memory was 305.1MB in the beginning and 528.5MB in the end (delta: 223.3MB). Free memory was 265.4MB in the beginning and 485.1MB in the end (delta: -219.6MB). Peak memory consumption was 315.1MB. Max. memory is 8.0GB. [2023-12-15 19:39:37,477 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 221.2MB. Free memory is still 170.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 252.38ms. Allocated memory is still 305.1MB. Free memory was 252.0MB in the beginning and 238.3MB in the end (delta: 13.8MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.75ms. Allocated memory is still 305.1MB. Free memory was 238.3MB in the beginning and 234.7MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.70ms. Allocated memory is still 305.1MB. Free memory was 234.7MB in the beginning and 229.4MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 509.10ms. Allocated memory is still 305.1MB. Free memory was 229.4MB in the beginning and 266.5MB in the end (delta: -37.1MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * TraceAbstraction took 68103.42ms. Allocated memory was 305.1MB in the beginning and 528.5MB in the end (delta: 223.3MB). Free memory was 265.4MB in the beginning and 485.1MB in the end (delta: -219.6MB). Peak memory consumption was 315.1MB. 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 93 with TraceHistMax 13,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-4-2-2-2-2-3-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-19-5-2-3-2-3-3-2-3-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 68.1s, OverallIterations: 7, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 20.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1211 SdHoareTripleChecker+Valid, 9.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1211 mSDsluCounter, 2280 SdHoareTripleChecker+Invalid, 9.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1665 mSDsCounter, 112 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1728 IncrementalHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 112 mSolverCounterUnsat, 615 mSDtfsCounter, 1728 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 691 GetRequests, 596 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 613 ImplicationChecksByTransitivity, 17.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=542occurred in iteration=6, InterpolantAutomatonStates: 61, 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, 369 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 41.0s InterpolantComputationTime, 637 NumberOfCodeBlocks, 637 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 632 ConstructedInterpolants, 7 QuantifiedInterpolants, 7108 SizeOfPredicates, 66 NumberOfNonLiveVariables, 1556 ConjunctsInSsa, 100 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 2109/2184 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