/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-11.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 21:13:42,611 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 21:13:42,649 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 21:13:42,652 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 21:13:42,652 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 21:13:42,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 21:13:42,665 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 21:13:42,665 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 21:13:42,665 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 21:13:42,666 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 21:13:42,666 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 21:13:42,666 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 21:13:42,667 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 21:13:42,667 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 21:13:42,667 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 21:13:42,667 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 21:13:42,668 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 21:13:42,668 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 21:13:42,668 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 21:13:42,668 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 21:13:42,669 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 21:13:42,669 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 21:13:42,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 21:13:42,669 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 21:13:42,670 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 21:13:42,670 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 21:13:42,670 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 21:13:42,670 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 21:13:42,671 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 21:13:42,671 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 21:13:42,671 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 21:13:42,671 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 21:13:42,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 21:13:42,672 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 21:13:42,672 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 21:13:42,672 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 21:13:42,672 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 21:13:42,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 21:13:42,673 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 21:13:42,673 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 21:13:42,673 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 21:13:42,673 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 21:13:42,674 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 21:13:42,674 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 21:13:42,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 21:13:42,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 21:13:42,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 21:13:42,861 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 21:13:42,862 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 21:13:42,862 INFO L431 ainManager$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-11.i [2023-12-20 21:13:43,824 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 21:13:43,976 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 21:13:43,976 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-11.i [2023-12-20 21:13:43,982 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57cb6b91f/7ea476667e6f420a8538a4e886322b3a/FLAG72d334f2a [2023-12-20 21:13:43,995 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57cb6b91f/7ea476667e6f420a8538a4e886322b3a [2023-12-20 21:13:43,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 21:13:43,997 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 21:13:43,998 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 21:13:43,998 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 21:13:44,001 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 21:13:44,002 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 09:13:43" (1/1) ... [2023-12-20 21:13:44,003 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@271d8683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:13:44, skipping insertion in model container [2023-12-20 21:13:44,003 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 09:13:43" (1/1) ... [2023-12-20 21:13:44,034 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 21:13:44,148 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-11.i[919,932] [2023-12-20 21:13:44,196 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 21:13:44,211 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 21:13:44,218 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-11.i[919,932] [2023-12-20 21:13:44,248 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 21:13:44,262 INFO L206 MainTranslator]: Completed translation [2023-12-20 21:13:44,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:13:44 WrapperNode [2023-12-20 21:13:44,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 21:13:44,264 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 21:13:44,264 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 21:13:44,264 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 21:13:44,269 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:13:44" (1/1) ... [2023-12-20 21:13:44,284 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:13:44" (1/1) ... [2023-12-20 21:13:44,319 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 203 [2023-12-20 21:13:44,320 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 21:13:44,320 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 21:13:44,321 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 21:13:44,321 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 21:13:44,328 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:13:44" (1/1) ... [2023-12-20 21:13:44,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:13:44" (1/1) ... [2023-12-20 21:13:44,330 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:13:44" (1/1) ... [2023-12-20 21:13:44,340 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]. [2023-12-20 21:13:44,340 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:13:44" (1/1) ... [2023-12-20 21:13:44,341 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:13:44" (1/1) ... [2023-12-20 21:13:44,346 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:13:44" (1/1) ... [2023-12-20 21:13:44,348 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:13:44" (1/1) ... [2023-12-20 21:13:44,350 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:13:44" (1/1) ... [2023-12-20 21:13:44,351 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:13:44" (1/1) ... [2023-12-20 21:13:44,353 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 21:13:44,353 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 21:13:44,353 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 21:13:44,354 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 21:13:44,354 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:13:44" (1/1) ... [2023-12-20 21:13:44,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 21:13:44,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 21:13:44,377 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) [2023-12-20 21:13:44,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 21:13:44,409 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 21:13:44,409 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 21:13:44,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 21:13:44,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 21:13:44,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 21:13:44,403 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 [2023-12-20 21:13:44,466 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 21:13:44,469 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 21:13:44,713 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 21:13:44,773 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 21:13:44,773 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-20 21:13:44,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 09:13:44 BoogieIcfgContainer [2023-12-20 21:13:44,773 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 21:13:44,775 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 21:13:44,775 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 21:13:44,781 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 21:13:44,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 09:13:43" (1/3) ... [2023-12-20 21:13:44,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19dbe5f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 09:13:44, skipping insertion in model container [2023-12-20 21:13:44,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:13:44" (2/3) ... [2023-12-20 21:13:44,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19dbe5f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 09:13:44, skipping insertion in model container [2023-12-20 21:13:44,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 09:13:44" (3/3) ... [2023-12-20 21:13:44,783 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-11.i [2023-12-20 21:13:44,794 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 21:13:44,794 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 21:13:44,828 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 21:13:44,832 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;@7d0811f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 21:13:44,832 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 21:13:44,835 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 49 states have (on average 1.5510204081632653) internal successors, (76), 50 states have internal predecessors, (76), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-20 21:13:44,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-12-20 21:13:44,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 21:13:44,847 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 21:13:44,847 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 21:13:44,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 21:13:44,851 INFO L85 PathProgramCache]: Analyzing trace with hash 104009431, now seen corresponding path program 1 times [2023-12-20 21:13:44,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 21:13:44,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587150474] [2023-12-20 21:13:44,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 21:13:44,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 21:13:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 21:13:45,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 21:13:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 21:13:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 21:13:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 21:13:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 21:13:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 21:13:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 21:13:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 21:13:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 21:13:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 21:13:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 21:13:45,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 21:13:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 21:13:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 21:13:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-20 21:13:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-20 21:13:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-20 21:13:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-20 21:13:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-20 21:13:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-20 21:13:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-20 21:13:45,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-20 21:13:45,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-20 21:13:45,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 21:13:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-20 21:13:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-20 21:13:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:45,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-12-20 21:13:45,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 21:13:45,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587150474] [2023-12-20 21:13:45,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587150474] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 21:13:45,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 21:13:45,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 21:13:45,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097991773] [2023-12-20 21:13:45,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 21:13:45,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 21:13:45,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 21:13:45,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 21:13:45,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 21:13:45,254 INFO L87 Difference]: Start difference. First operand has 79 states, 49 states have (on average 1.5510204081632653) internal successors, (76), 50 states have internal predecessors, (76), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-20 21:13:45,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 21:13:45,306 INFO L93 Difference]: Finished difference Result 155 states and 285 transitions. [2023-12-20 21:13:45,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 21:13:45,309 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 167 [2023-12-20 21:13:45,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 21:13:45,315 INFO L225 Difference]: With dead ends: 155 [2023-12-20 21:13:45,315 INFO L226 Difference]: Without dead ends: 77 [2023-12-20 21:13:45,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 21:13:45,320 INFO L413 NwaCegarLoop]: 121 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, 121 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 [2023-12-20 21:13:45,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 21:13:45,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-12-20 21:13:45,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-12-20 21:13:45,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 48 states have (on average 1.4583333333333333) internal successors, (70), 48 states have internal predecessors, (70), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-20 21:13:45,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 124 transitions. [2023-12-20 21:13:45,369 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 124 transitions. Word has length 167 [2023-12-20 21:13:45,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 21:13:45,369 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 124 transitions. [2023-12-20 21:13:45,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-20 21:13:45,370 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 124 transitions. [2023-12-20 21:13:45,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-12-20 21:13:45,373 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 21:13:45,374 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 21:13:45,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 21:13:45,374 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 21:13:45,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 21:13:45,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1518491357, now seen corresponding path program 1 times [2023-12-20 21:13:45,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 21:13:45,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630319733] [2023-12-20 21:13:45,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 21:13:45,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 21:13:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 21:13:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 21:13:46,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 21:13:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 21:13:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 21:13:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 21:13:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 21:13:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 21:13:46,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 21:13:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 21:13:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 21:13:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 21:13:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 21:13:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 21:13:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 21:13:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-20 21:13:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-20 21:13:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-20 21:13:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-20 21:13:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-20 21:13:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-20 21:13:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-20 21:13:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-20 21:13:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-20 21:13:46,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 21:13:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-20 21:13:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-20 21:13:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,274 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-12-20 21:13:46,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 21:13:46,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630319733] [2023-12-20 21:13:46,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630319733] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 21:13:46,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 21:13:46,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 21:13:46,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307638907] [2023-12-20 21:13:46,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 21:13:46,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 21:13:46,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 21:13:46,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 21:13:46,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-20 21:13:46,281 INFO L87 Difference]: Start difference. First operand 77 states and 124 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2023-12-20 21:13:46,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 21:13:46,371 INFO L93 Difference]: Finished difference Result 176 states and 285 transitions. [2023-12-20 21:13:46,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 21:13:46,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 167 [2023-12-20 21:13:46,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 21:13:46,375 INFO L225 Difference]: With dead ends: 176 [2023-12-20 21:13:46,375 INFO L226 Difference]: Without dead ends: 100 [2023-12-20 21:13:46,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-20 21:13:46,380 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 76 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 21:13:46,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 334 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 21:13:46,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-12-20 21:13:46,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 85. [2023-12-20 21:13:46,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 56 states have internal predecessors, (83), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-20 21:13:46,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 137 transitions. [2023-12-20 21:13:46,397 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 137 transitions. Word has length 167 [2023-12-20 21:13:46,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 21:13:46,400 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 137 transitions. [2023-12-20 21:13:46,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2023-12-20 21:13:46,401 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 137 transitions. [2023-12-20 21:13:46,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-12-20 21:13:46,406 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 21:13:46,406 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 21:13:46,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 21:13:46,407 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 21:13:46,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 21:13:46,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1575749659, now seen corresponding path program 1 times [2023-12-20 21:13:46,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 21:13:46,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282758292] [2023-12-20 21:13:46,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 21:13:46,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 21:13:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 21:13:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 21:13:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 21:13:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 21:13:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 21:13:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 21:13:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 21:13:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 21:13:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 21:13:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 21:13:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 21:13:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 21:13:46,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 21:13:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 21:13:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 21:13:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-20 21:13:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-20 21:13:46,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-20 21:13:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-20 21:13:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-20 21:13:46,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-20 21:13:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-20 21:13:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-20 21:13:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-20 21:13:46,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 21:13:46,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-20 21:13:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-20 21:13:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:46,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-12-20 21:13:46,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 21:13:46,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282758292] [2023-12-20 21:13:46,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282758292] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 21:13:46,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 21:13:46,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 21:13:46,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093560981] [2023-12-20 21:13:46,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 21:13:46,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 21:13:46,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 21:13:46,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 21:13:46,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 21:13:46,814 INFO L87 Difference]: Start difference. First operand 85 states and 137 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2023-12-20 21:13:46,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 21:13:46,997 INFO L93 Difference]: Finished difference Result 254 states and 410 transitions. [2023-12-20 21:13:46,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 21:13:46,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 167 [2023-12-20 21:13:47,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 21:13:47,004 INFO L225 Difference]: With dead ends: 254 [2023-12-20 21:13:47,004 INFO L226 Difference]: Without dead ends: 170 [2023-12-20 21:13:47,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-20 21:13:47,008 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 130 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 21:13:47,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 414 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 21:13:47,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2023-12-20 21:13:47,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 133. [2023-12-20 21:13:47,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 76 states have (on average 1.355263157894737) internal successors, (103), 76 states have internal predecessors, (103), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-20 21:13:47,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 211 transitions. [2023-12-20 21:13:47,040 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 211 transitions. Word has length 167 [2023-12-20 21:13:47,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 21:13:47,041 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 211 transitions. [2023-12-20 21:13:47,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2023-12-20 21:13:47,041 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 211 transitions. [2023-12-20 21:13:47,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-20 21:13:47,042 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 21:13:47,042 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 21:13:47,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 21:13:47,043 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 21:13:47,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 21:13:47,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1733957685, now seen corresponding path program 1 times [2023-12-20 21:13:47,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 21:13:47,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410921801] [2023-12-20 21:13:47,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 21:13:47,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 21:13:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 21:13:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 21:13:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 21:13:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 21:13:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 21:13:47,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 21:13:47,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 21:13:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 21:13:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 21:13:47,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 21:13:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 21:13:47,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 21:13:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 21:13:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 21:13:47,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 21:13:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-20 21:13:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-20 21:13:47,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-20 21:13:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-20 21:13:47,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-20 21:13:47,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-20 21:13:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-20 21:13:47,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-20 21:13:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-20 21:13:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 21:13:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-20 21:13:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-20 21:13:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 9 proven. 69 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2023-12-20 21:13:47,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 21:13:47,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410921801] [2023-12-20 21:13:47,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410921801] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 21:13:47,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193998942] [2023-12-20 21:13:47,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 21:13:47,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 21:13:47,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 21:13:47,558 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) [2023-12-20 21:13:47,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 21:13:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:13:47,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-20 21:13:47,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 21:13:48,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 308 proven. 69 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2023-12-20 21:13:48,139 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 21:13:48,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 9 proven. 69 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2023-12-20 21:13:48,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193998942] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 21:13:48,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 21:13:48,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 14 [2023-12-20 21:13:48,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252273294] [2023-12-20 21:13:48,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 21:13:48,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-20 21:13:48,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 21:13:48,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-20 21:13:48,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2023-12-20 21:13:48,432 INFO L87 Difference]: Start difference. First operand 133 states and 211 transitions. Second operand has 14 states, 14 states have (on average 6.857142857142857) internal successors, (96), 14 states have internal predecessors, (96), 5 states have call successors, (77), 3 states have call predecessors, (77), 6 states have return successors, (78), 5 states have call predecessors, (78), 5 states have call successors, (78) [2023-12-20 21:13:48,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 21:13:48,599 INFO L93 Difference]: Finished difference Result 225 states and 348 transitions. [2023-12-20 21:13:48,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 21:13:48,600 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.857142857142857) internal successors, (96), 14 states have internal predecessors, (96), 5 states have call successors, (77), 3 states have call predecessors, (77), 6 states have return successors, (78), 5 states have call predecessors, (78), 5 states have call successors, (78) Word has length 168 [2023-12-20 21:13:48,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 21:13:48,601 INFO L225 Difference]: With dead ends: 225 [2023-12-20 21:13:48,601 INFO L226 Difference]: Without dead ends: 141 [2023-12-20 21:13:48,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 380 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=202, Unknown=0, NotChecked=0, Total=306 [2023-12-20 21:13:48,602 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 266 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 21:13:48,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 191 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 21:13:48,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-12-20 21:13:48,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 133. [2023-12-20 21:13:48,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 74 states have (on average 1.2432432432432432) internal successors, (92), 74 states have internal predecessors, (92), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-20 21:13:48,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 200 transitions. [2023-12-20 21:13:48,615 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 200 transitions. Word has length 168 [2023-12-20 21:13:48,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 21:13:48,616 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 200 transitions. [2023-12-20 21:13:48,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.857142857142857) internal successors, (96), 14 states have internal predecessors, (96), 5 states have call successors, (77), 3 states have call predecessors, (77), 6 states have return successors, (78), 5 states have call predecessors, (78), 5 states have call successors, (78) [2023-12-20 21:13:48,616 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 200 transitions. [2023-12-20 21:13:48,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-20 21:13:48,617 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 21:13:48,617 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 21:13:48,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 21:13:48,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 21:13:48,822 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 21:13:48,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 21:13:48,823 INFO L85 PathProgramCache]: Analyzing trace with hash 42234183, now seen corresponding path program 1 times [2023-12-20 21:13:48,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 21:13:48,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179012746] [2023-12-20 21:13:48,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 21:13:48,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 21:13:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 21:14:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 21:14:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 21:14:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 21:14:01,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 21:14:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 21:14:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 21:14:01,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 21:14:01,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 21:14:01,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 21:14:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 21:14:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 21:14:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 21:14:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 21:14:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 21:14:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-20 21:14:01,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-20 21:14:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-20 21:14:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-20 21:14:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-20 21:14:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-20 21:14:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-20 21:14:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-20 21:14:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-20 21:14:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 21:14:01,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-20 21:14:01,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-20 21:14:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 75 proven. 303 refuted. 0 times theorem prover too weak. 1026 trivial. 0 not checked. [2023-12-20 21:14:01,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 21:14:01,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179012746] [2023-12-20 21:14:01,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179012746] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 21:14:01,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922112094] [2023-12-20 21:14:01,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 21:14:01,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 21:14:01,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 21:14:01,783 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) [2023-12-20 21:14:01,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 21:14:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:14:01,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 47 conjunts are in the unsatisfiable core [2023-12-20 21:14:01,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 21:14:08,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 560 proven. 336 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2023-12-20 21:14:08,486 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 21:15:16,206 WARN L293 SmtUtils]: Spent 5.41s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:15:51,087 WARN L293 SmtUtils]: Spent 8.04s 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) [2023-12-20 21:15:59,069 WARN L293 SmtUtils]: Spent 7.98s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:16:07,113 WARN L293 SmtUtils]: Spent 8.04s 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) [2023-12-20 21:16:23,283 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:16:36,122 WARN L293 SmtUtils]: Spent 8.02s 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) [2023-12-20 21:17:02,208 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:17:13,426 WARN L293 SmtUtils]: Spent 8.02s 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) [2023-12-20 21:17:25,633 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:17:33,653 WARN L293 SmtUtils]: Spent 8.02s 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) [2023-12-20 21:17:46,030 WARN L293 SmtUtils]: Spent 8.02s 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) [2023-12-20 21:18:02,793 WARN L293 SmtUtils]: Spent 8.02s 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) [2023-12-20 21:18:14,939 WARN L293 SmtUtils]: Spent 8.02s 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) [2023-12-20 21:18:31,180 WARN L293 SmtUtils]: Spent 8.03s 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) [2023-12-20 21:18:47,620 WARN L293 SmtUtils]: Spent 8.04s 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) [2023-12-20 21:19:00,809 WARN L293 SmtUtils]: Spent 5.11s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:19:12,943 WARN L293 SmtUtils]: Spent 8.02s 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) [2023-12-20 21:19:25,067 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:19:33,087 WARN L293 SmtUtils]: Spent 8.02s 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) [2023-12-20 21:19:45,126 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:19:53,145 WARN L293 SmtUtils]: Spent 8.02s 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) [2023-12-20 21:20:29,725 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:20:41,987 WARN L293 SmtUtils]: Spent 8.02s 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) [2023-12-20 21:20:52,806 WARN L293 SmtUtils]: Spent 6.71s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:21:00,829 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:21:08,857 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:21:16,885 WARN L293 SmtUtils]: Spent 8.03s 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) [2023-12-20 21:21:26,506 WARN L293 SmtUtils]: Spent 5.51s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:21:51,217 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:21:59,247 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:22:07,299 WARN L293 SmtUtils]: Spent 8.05s 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) [2023-12-20 21:22:25,061 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:22:37,573 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:22:57,645 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:23:05,735 WARN L293 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:23:13,762 WARN L293 SmtUtils]: Spent 8.03s 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) [2023-12-20 21:23:21,787 WARN L293 SmtUtils]: Spent 8.02s 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) [2023-12-20 21:23:34,107 WARN L293 SmtUtils]: Spent 8.02s 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) [2023-12-20 21:23:45,160 WARN L293 SmtUtils]: Spent 6.41s on a formula simplification. DAG size of input: 11 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:23:50,324 WARN L293 SmtUtils]: Spent 5.16s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:24:02,382 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:24:10,640 WARN L293 SmtUtils]: Spent 8.15s 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) [2023-12-20 21:24:26,793 WARN L293 SmtUtils]: Spent 8.02s 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) [2023-12-20 21:25:04,569 WARN L293 SmtUtils]: Spent 5.79s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:25:10,934 WARN L293 SmtUtils]: Spent 5.54s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:25:18,966 WARN L293 SmtUtils]: Spent 8.03s 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) [2023-12-20 21:25:40,240 WARN L293 SmtUtils]: Spent 5.71s 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) [2023-12-20 21:25:46,609 WARN L293 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 13 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:25:54,627 WARN L293 SmtUtils]: Spent 8.02s 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) [2023-12-20 21:26:09,304 WARN L293 SmtUtils]: Spent 10.57s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:26:17,317 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) [2023-12-20 21:26:56,112 WARN L293 SmtUtils]: Spent 7.28s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:27:07,242 WARN L293 SmtUtils]: Spent 8.02s 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) [2023-12-20 21:27:15,580 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:27:24,923 WARN L293 SmtUtils]: Spent 5.93s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:27:42,266 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:27:56,840 WARN L293 SmtUtils]: Spent 8.03s 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) [2023-12-20 21:28:11,080 WARN L293 SmtUtils]: Spent 6.65s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-20 21:28:20,653 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 [2023-12-20 21:28:20,674 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-20 21:28:21,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-20 21:28:21,854 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-20 21:28:21,863 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 21:28:21,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 21:28:21,864 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 170 with TraceHistMax 27,while TraceCheckSpWp was constructing backward predicates,while executing Executor. [2023-12-20 21:28:21,867 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-20 21:28:21,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-20 21:28:21,871 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 21:28:21,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 09:28:21 BoogieIcfgContainer [2023-12-20 21:28:21,872 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 21:28:21,872 INFO L158 Benchmark]: Toolchain (without parser) took 877874.98ms. Allocated memory was 300.9MB in the beginning and 717.2MB in the end (delta: 416.3MB). Free memory was 248.1MB in the beginning and 406.2MB in the end (delta: -158.2MB). Peak memory consumption was 417.5MB. Max. memory is 8.0GB. [2023-12-20 21:28:21,873 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 217.1MB. Free memory is still 163.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 21:28:21,873 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.81ms. Allocated memory is still 300.9MB. Free memory was 248.1MB in the beginning and 232.9MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-20 21:28:21,873 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.34ms. Allocated memory is still 300.9MB. Free memory was 232.9MB in the beginning and 230.2MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-20 21:28:21,874 INFO L158 Benchmark]: Boogie Preprocessor took 32.36ms. Allocated memory is still 300.9MB. Free memory was 230.2MB in the beginning and 227.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-20 21:28:21,874 INFO L158 Benchmark]: RCFGBuilder took 419.95ms. Allocated memory is still 300.9MB. Free memory was 227.1MB in the beginning and 202.5MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-20 21:28:21,874 INFO L158 Benchmark]: TraceAbstraction took 877097.04ms. Allocated memory was 300.9MB in the beginning and 717.2MB in the end (delta: 416.3MB). Free memory was 201.4MB in the beginning and 406.2MB in the end (delta: -204.8MB). Peak memory consumption was 371.3MB. Max. memory is 8.0GB. [2023-12-20 21:28:21,875 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 217.1MB. Free memory is still 163.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 264.81ms. Allocated memory is still 300.9MB. Free memory was 248.1MB in the beginning and 232.9MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.34ms. Allocated memory is still 300.9MB. Free memory was 232.9MB in the beginning and 230.2MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.36ms. Allocated memory is still 300.9MB. Free memory was 230.2MB in the beginning and 227.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 419.95ms. Allocated memory is still 300.9MB. Free memory was 227.1MB in the beginning and 202.5MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * TraceAbstraction took 877097.04ms. Allocated memory was 300.9MB in the beginning and 717.2MB in the end (delta: 416.3MB). Free memory was 201.4MB in the beginning and 406.2MB in the end (delta: -204.8MB). Peak memory consumption was 371.3MB. 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 170 with TraceHistMax 27,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 877.1s, OverallIterations: 5, TraceHistogramMax: 27, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 474 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 472 mSDsluCounter, 1060 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 625 mSDsCounter, 114 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 303 IncrementalHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 114 mSolverCounterUnsat, 435 mSDtfsCounter, 303 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 603 GetRequests, 576 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=3, InterpolantAutomatonStates: 23, 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, 4 MinimizatonAttempts, 60 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 837 NumberOfCodeBlocks, 837 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 999 ConstructedInterpolants, 0 QuantifiedInterpolants, 3370 SizeOfPredicates, 6 NumberOfNonLiveVariables, 405 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 8217/8424 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