/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_fillercodesize_normal_file-10.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 02:41:57,112 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 02:41:57,188 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 02:41:57,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 02:41:57,191 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 02:41:57,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 02:41:57,203 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 02:41:57,203 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 02:41:57,204 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 02:41:57,204 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 02:41:57,204 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 02:41:57,205 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 02:41:57,205 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 02:41:57,205 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 02:41:57,205 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 02:41:57,206 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 02:41:57,206 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 02:41:57,206 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 02:41:57,206 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 02:41:57,207 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 02:41:57,207 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 02:41:57,207 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 02:41:57,207 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 02:41:57,208 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 02:41:57,208 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 02:41:57,208 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 02:41:57,208 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 02:41:57,209 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 02:41:57,209 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 02:41:57,209 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 02:41:57,209 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 02:41:57,210 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 02:41:57,210 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:41:57,210 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 02:41:57,210 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 02:41:57,211 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 02:41:57,211 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 02:41:57,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 02:41:57,211 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 02:41:57,211 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 02:41:57,212 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 02:41:57,212 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 02:41:57,212 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 02:41:57,212 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 02:41:57,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 02:41:57,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 02:41:57,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 02:41:57,411 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 02:41:57,412 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 02:41:57,412 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-10.i [2023-12-16 02:41:58,482 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 02:41:58,674 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 02:41:58,675 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-10.i [2023-12-16 02:41:58,687 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4f008765/26bd8751a7c341b1b1de968bbcb85104/FLAGff407e656 [2023-12-16 02:41:58,700 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4f008765/26bd8751a7c341b1b1de968bbcb85104 [2023-12-16 02:41:58,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 02:41:58,704 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 02:41:58,705 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 02:41:58,706 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 02:41:58,709 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 02:41:58,709 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:41:58" (1/1) ... [2023-12-16 02:41:58,711 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c8ab291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:41:58, skipping insertion in model container [2023-12-16 02:41:58,711 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:41:58" (1/1) ... [2023-12-16 02:41:58,739 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 02:41:58,849 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-10.i[913,926] [2023-12-16 02:41:58,886 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:41:58,894 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 02:41:58,903 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-10.i[913,926] [2023-12-16 02:41:58,925 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:41:58,936 INFO L206 MainTranslator]: Completed translation [2023-12-16 02:41:58,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:41:58 WrapperNode [2023-12-16 02:41:58,937 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 02:41:58,938 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 02:41:58,938 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 02:41:58,938 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 02:41:58,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:41:58" (1/1) ... [2023-12-16 02:41:58,951 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:41:58" (1/1) ... [2023-12-16 02:41:58,990 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 150 [2023-12-16 02:41:58,990 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 02:41:58,991 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 02:41:58,991 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 02:41:58,991 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 02:41:58,999 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:41:58" (1/1) ... [2023-12-16 02:41:59,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:41:58" (1/1) ... [2023-12-16 02:41:59,002 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:41:58" (1/1) ... [2023-12-16 02:41:59,026 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]. [2023-12-16 02:41:59,026 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:41:58" (1/1) ... [2023-12-16 02:41:59,026 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:41:58" (1/1) ... [2023-12-16 02:41:59,033 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:41:58" (1/1) ... [2023-12-16 02:41:59,036 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:41:58" (1/1) ... [2023-12-16 02:41:59,038 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:41:58" (1/1) ... [2023-12-16 02:41:59,050 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:41:58" (1/1) ... [2023-12-16 02:41:59,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 02:41:59,055 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 02:41:59,056 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 02:41:59,056 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 02:41:59,056 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:41:58" (1/1) ... [2023-12-16 02:41:59,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:41:59,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:41:59,105 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) [2023-12-16 02:41:59,149 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 [2023-12-16 02:41:59,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 02:41:59,165 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 02:41:59,166 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 02:41:59,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 02:41:59,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 02:41:59,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 02:41:59,243 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 02:41:59,244 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 02:41:59,481 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 02:41:59,503 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 02:41:59,504 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 02:41:59,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:41:59 BoogieIcfgContainer [2023-12-16 02:41:59,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 02:41:59,505 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 02:41:59,506 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 02:41:59,508 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 02:41:59,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:41:58" (1/3) ... [2023-12-16 02:41:59,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33138832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:41:59, skipping insertion in model container [2023-12-16 02:41:59,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:41:58" (2/3) ... [2023-12-16 02:41:59,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33138832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:41:59, skipping insertion in model container [2023-12-16 02:41:59,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:41:59" (3/3) ... [2023-12-16 02:41:59,509 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_normal_file-10.i [2023-12-16 02:41:59,520 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 02:41:59,521 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 02:41:59,550 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 02:41:59,554 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;@206c26ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 02:41:59,555 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 02:41:59,557 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 39 states have internal predecessors, (55), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 02:41:59,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-16 02:41:59,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:41:59,567 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:41:59,568 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:41:59,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:41:59,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1519772041, now seen corresponding path program 1 times [2023-12-16 02:41:59,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:41:59,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503034822] [2023-12-16 02:41:59,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:41:59,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:41:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:41:59,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 02:41:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:41:59,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 02:41:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:41:59,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 02:41:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:41:59,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 02:41:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:41:59,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 02:41:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:41:59,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 02:41:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:41:59,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 02:41:59,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:41:59,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 02:41:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:41:59,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 02:41:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:41:59,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 02:41:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:41:59,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 02:41:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:41:59,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 02:41:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:41:59,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 02:41:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:41:59,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 02:41:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:41:59,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 02:41:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:41:59,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 02:41:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:41:59,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 02:41:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:41:59,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 02:41:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:41:59,867 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 02:41:59,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:41:59,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503034822] [2023-12-16 02:41:59,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503034822] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:41:59,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:41:59,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:41:59,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450575591] [2023-12-16 02:41:59,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:41:59,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 02:41:59,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:41:59,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 02:41:59,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 02:41:59,901 INFO L87 Difference]: Start difference. First operand has 59 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 39 states have internal predecessors, (55), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 02:41:59,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:41:59,931 INFO L93 Difference]: Finished difference Result 115 states and 198 transitions. [2023-12-16 02:41:59,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 02:41:59,933 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 118 [2023-12-16 02:41:59,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:41:59,939 INFO L225 Difference]: With dead ends: 115 [2023-12-16 02:41:59,939 INFO L226 Difference]: Without dead ends: 57 [2023-12-16 02:41:59,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 02:41:59,944 INFO L413 NwaCegarLoop]: 83 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, 83 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 [2023-12-16 02:41:59,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 02:41:59,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-12-16 02:41:59,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-12-16 02:41:59,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 37 states have internal predecessors, (50), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 02:41:59,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 86 transitions. [2023-12-16 02:41:59,978 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 86 transitions. Word has length 118 [2023-12-16 02:41:59,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:41:59,979 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 86 transitions. [2023-12-16 02:41:59,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 02:41:59,979 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 86 transitions. [2023-12-16 02:41:59,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-16 02:41:59,986 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:41:59,987 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:41:59,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 02:41:59,987 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:41:59,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:41:59,988 INFO L85 PathProgramCache]: Analyzing trace with hash 168546231, now seen corresponding path program 1 times [2023-12-16 02:41:59,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:41:59,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564691706] [2023-12-16 02:41:59,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:41:59,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:42:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:00,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 02:42:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:00,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 02:42:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:00,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 02:42:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:00,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 02:42:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:00,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 02:42:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:00,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 02:42:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:00,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 02:42:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:00,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 02:42:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:00,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 02:42:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:00,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 02:42:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:00,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 02:42:00,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:00,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 02:42:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:00,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 02:42:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:00,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 02:42:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:00,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 02:42:00,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:00,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 02:42:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:00,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 02:42:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:00,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 02:42:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:00,483 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 02:42:00,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:42:00,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564691706] [2023-12-16 02:42:00,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564691706] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:42:00,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:42:00,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 02:42:00,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261322671] [2023-12-16 02:42:00,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:42:00,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 02:42:00,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:42:00,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 02:42:00,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 02:42:00,493 INFO L87 Difference]: Start difference. First operand 57 states and 86 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 02:42:00,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:42:00,646 INFO L93 Difference]: Finished difference Result 170 states and 257 transitions. [2023-12-16 02:42:00,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 02:42:00,646 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 118 [2023-12-16 02:42:00,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:42:00,650 INFO L225 Difference]: With dead ends: 170 [2023-12-16 02:42:00,650 INFO L226 Difference]: Without dead ends: 114 [2023-12-16 02:42:00,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 02:42:00,652 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 79 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 02:42:00,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 315 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 02:42:00,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-12-16 02:42:00,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 90. [2023-12-16 02:42:00,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 51 states have (on average 1.2549019607843137) internal successors, (64), 51 states have internal predecessors, (64), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-16 02:42:00,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 136 transitions. [2023-12-16 02:42:00,677 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 136 transitions. Word has length 118 [2023-12-16 02:42:00,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:42:00,679 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 136 transitions. [2023-12-16 02:42:00,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 02:42:00,679 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 136 transitions. [2023-12-16 02:42:00,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 02:42:00,680 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:42:00,680 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:42:00,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 02:42:00,680 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:42:00,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:42:00,681 INFO L85 PathProgramCache]: Analyzing trace with hash -2115435422, now seen corresponding path program 1 times [2023-12-16 02:42:00,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:42:00,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994977929] [2023-12-16 02:42:00,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:42:00,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:42:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:15,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 02:42:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:15,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 02:42:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:15,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 02:42:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:15,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 02:42:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:15,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 02:42:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:15,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 02:42:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:15,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 02:42:15,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:15,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 02:42:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:15,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 02:42:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:15,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 02:42:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:15,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 02:42:15,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:15,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 02:42:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:15,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 02:42:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:15,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 02:42:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:15,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 02:42:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:15,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 02:42:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:15,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 02:42:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:15,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 02:42:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:15,240 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 02:42:15,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:42:15,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994977929] [2023-12-16 02:42:15,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994977929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:42:15,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:42:15,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-16 02:42:15,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67680374] [2023-12-16 02:42:15,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:42:15,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 02:42:15,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:42:15,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 02:42:15,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-12-16 02:42:15,245 INFO L87 Difference]: Start difference. First operand 90 states and 136 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 02:42:17,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:42:17,119 INFO L93 Difference]: Finished difference Result 277 states and 397 transitions. [2023-12-16 02:42:17,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-16 02:42:17,133 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 119 [2023-12-16 02:42:17,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:42:17,134 INFO L225 Difference]: With dead ends: 277 [2023-12-16 02:42:17,134 INFO L226 Difference]: Without dead ends: 221 [2023-12-16 02:42:17,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=331, Invalid=1151, Unknown=0, NotChecked=0, Total=1482 [2023-12-16 02:42:17,136 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 379 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 02:42:17,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 504 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 02:42:17,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-12-16 02:42:17,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 109. [2023-12-16 02:42:17,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 69 states have (on average 1.289855072463768) internal successors, (89), 69 states have internal predecessors, (89), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-16 02:42:17,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 161 transitions. [2023-12-16 02:42:17,164 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 161 transitions. Word has length 119 [2023-12-16 02:42:17,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:42:17,164 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 161 transitions. [2023-12-16 02:42:17,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 02:42:17,164 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 161 transitions. [2023-12-16 02:42:17,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 02:42:17,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:42:17,166 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:42:17,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 02:42:17,166 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:42:17,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:42:17,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1370185248, now seen corresponding path program 1 times [2023-12-16 02:42:17,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:42:17,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957886157] [2023-12-16 02:42:17,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:42:17,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:42:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:27,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 02:42:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:27,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 02:42:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:27,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 02:42:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:27,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 02:42:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:27,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 02:42:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:27,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 02:42:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:27,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 02:42:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:27,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 02:42:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:27,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 02:42:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:27,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 02:42:27,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:27,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 02:42:27,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:27,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 02:42:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:27,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 02:42:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:27,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 02:42:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:27,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 02:42:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:27,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 02:42:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:27,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 02:42:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:27,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 02:42:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:42:27,557 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 02:42:27,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:42:27,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957886157] [2023-12-16 02:42:27,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957886157] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:42:27,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:42:27,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-16 02:42:27,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640018209] [2023-12-16 02:42:27,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:42:27,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-16 02:42:27,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:42:27,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-16 02:42:27,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-12-16 02:42:27,561 INFO L87 Difference]: Start difference. First operand 109 states and 161 transitions. Second operand has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 02:42:30,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:42:30,743 INFO L93 Difference]: Finished difference Result 298 states and 435 transitions. [2023-12-16 02:42:30,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 02:42:30,744 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 119 [2023-12-16 02:42:30,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:42:30,746 INFO L225 Difference]: With dead ends: 298 [2023-12-16 02:42:30,746 INFO L226 Difference]: Without dead ends: 242 [2023-12-16 02:42:30,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=246, Invalid=684, Unknown=0, NotChecked=0, Total=930 [2023-12-16 02:42:30,748 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 401 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-16 02:42:30,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 474 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-16 02:42:30,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2023-12-16 02:42:30,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 170. [2023-12-16 02:42:30,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 111 states have (on average 1.3063063063063063) internal successors, (145), 111 states have internal predecessors, (145), 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) [2023-12-16 02:42:30,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 253 transitions. [2023-12-16 02:42:30,787 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 253 transitions. Word has length 119 [2023-12-16 02:42:30,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:42:30,788 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 253 transitions. [2023-12-16 02:42:30,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 02:42:30,789 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 253 transitions. [2023-12-16 02:42:30,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 02:42:30,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:42:30,790 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:42:30,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 02:42:30,791 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:42:30,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:42:30,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1598282398, now seen corresponding path program 1 times [2023-12-16 02:42:30,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:42:30,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661587282] [2023-12-16 02:42:30,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:42:30,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:42:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-12-16 02:43:07,868 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 02:43:07,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 02:43:07,869 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 120 with TraceHistMax 18,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∨-3-2-2-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-30-3-3-4-4-4-4-6-4-6-4-4-4-6-4-5-4-6-4-6-4-4-4-4-3-3-2-2-1 context. [2023-12-16 02:43:07,872 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 [2023-12-16 02:43:07,875 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 02:43:07,878 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 02:43:07,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:43:07 BoogieIcfgContainer [2023-12-16 02:43:07,882 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 02:43:07,883 INFO L158 Benchmark]: Toolchain (without parser) took 69179.40ms. Allocated memory was 308.3MB in the beginning and 937.4MB in the end (delta: 629.1MB). Free memory was 255.8MB in the beginning and 877.5MB in the end (delta: -621.7MB). Peak memory consumption was 555.7MB. Max. memory is 8.0GB. [2023-12-16 02:43:07,883 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 198.2MB. Free memory is still 146.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 02:43:07,883 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.68ms. Allocated memory is still 308.3MB. Free memory was 255.8MB in the beginning and 241.4MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-16 02:43:07,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.96ms. Allocated memory is still 308.3MB. Free memory was 241.4MB in the beginning and 237.0MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 02:43:07,885 INFO L158 Benchmark]: Boogie Preprocessor took 63.83ms. Allocated memory is still 308.3MB. Free memory was 237.0MB in the beginning and 229.9MB in the end (delta: 7.1MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 02:43:07,885 INFO L158 Benchmark]: RCFGBuilder took 448.69ms. Allocated memory is still 308.3MB. Free memory was 229.6MB in the beginning and 257.9MB in the end (delta: -28.3MB). Peak memory consumption was 15.9MB. Max. memory is 8.0GB. [2023-12-16 02:43:07,886 INFO L158 Benchmark]: TraceAbstraction took 68377.11ms. Allocated memory was 308.3MB in the beginning and 937.4MB in the end (delta: 629.1MB). Free memory was 257.4MB in the beginning and 877.5MB in the end (delta: -620.1MB). Peak memory consumption was 556.5MB. Max. memory is 8.0GB. [2023-12-16 02:43:07,889 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 198.2MB. Free memory is still 146.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 231.68ms. Allocated memory is still 308.3MB. Free memory was 255.8MB in the beginning and 241.4MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.96ms. Allocated memory is still 308.3MB. Free memory was 241.4MB in the beginning and 237.0MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 63.83ms. Allocated memory is still 308.3MB. Free memory was 237.0MB in the beginning and 229.9MB in the end (delta: 7.1MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 448.69ms. Allocated memory is still 308.3MB. Free memory was 229.6MB in the beginning and 257.9MB in the end (delta: -28.3MB). Peak memory consumption was 15.9MB. Max. memory is 8.0GB. * TraceAbstraction took 68377.11ms. Allocated memory was 308.3MB in the beginning and 937.4MB in the end (delta: 629.1MB). Free memory was 257.4MB in the beginning and 877.5MB in the end (delta: -620.1MB). Peak memory consumption was 556.5MB. 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 120 with TraceHistMax 18,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∨-3-2-2-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-30-3-3-4-4-4-4-6-4-6-4-4-4-6-4-5-4-6-4-6-4-4-4-4-3-3-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 68.3s, OverallIterations: 5, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 859 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 859 mSDsluCounter, 1376 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1072 mSDsCounter, 207 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1202 IncrementalHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 207 mSolverCounterUnsat, 304 mSDtfsCounter, 1202 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 251 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=4, InterpolantAutomatonStates: 60, 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, 208 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 25.2s InterpolantComputationTime, 474 NumberOfCodeBlocks, 474 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 470 ConstructedInterpolants, 0 QuantifiedInterpolants, 5596 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2448/2448 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