/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_variablewrapping_wrapper-sp_file-27.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 04:31:26,110 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 04:31:26,177 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 04:31:26,181 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 04:31:26,182 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 04:31:26,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 04:31:26,204 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 04:31:26,204 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 04:31:26,204 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 04:31:26,207 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 04:31:26,207 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 04:31:26,208 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 04:31:26,208 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 04:31:26,209 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 04:31:26,209 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 04:31:26,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 04:31:26,210 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 04:31:26,210 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 04:31:26,210 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 04:31:26,211 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 04:31:26,211 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 04:31:26,211 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 04:31:26,211 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 04:31:26,211 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 04:31:26,212 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 04:31:26,212 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 04:31:26,212 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 04:31:26,212 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 04:31:26,212 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 04:31:26,213 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 04:31:26,213 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 04:31:26,213 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 04:31:26,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:31:26,214 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 04:31:26,214 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 04:31:26,214 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 04:31:26,214 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 04:31:26,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 04:31:26,214 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 04:31:26,214 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 04:31:26,214 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 04:31:26,214 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 04:31:26,215 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 04:31:26,215 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 04:31:26,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 04:31:26,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 04:31:26,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 04:31:26,434 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 04:31:26,437 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 04:31:26,438 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.i [2023-12-16 04:31:27,391 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 04:31:27,573 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 04:31:27,574 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.i [2023-12-16 04:31:27,580 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fbe864cc/f097a998f163441eafc46e114068dd5f/FLAG56db6601a [2023-12-16 04:31:27,592 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fbe864cc/f097a998f163441eafc46e114068dd5f [2023-12-16 04:31:27,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 04:31:27,595 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 04:31:27,597 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 04:31:27,597 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 04:31:27,600 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 04:31:27,601 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:31:27" (1/1) ... [2023-12-16 04:31:27,601 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66827cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:31:27, skipping insertion in model container [2023-12-16 04:31:27,602 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:31:27" (1/1) ... [2023-12-16 04:31:27,629 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 04:31:27,747 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_variablewrapping_wrapper-sp_file-27.i[917,930] [2023-12-16 04:31:27,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:31:27,786 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 04:31:27,794 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_variablewrapping_wrapper-sp_file-27.i[917,930] [2023-12-16 04:31:27,813 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:31:27,826 INFO L206 MainTranslator]: Completed translation [2023-12-16 04:31:27,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:31:27 WrapperNode [2023-12-16 04:31:27,827 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 04:31:27,828 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 04:31:27,828 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 04:31:27,828 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 04:31:27,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:31:27" (1/1) ... [2023-12-16 04:31:27,839 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:31:27" (1/1) ... [2023-12-16 04:31:27,868 INFO L138 Inliner]: procedures = 26, calls = 152, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 439 [2023-12-16 04:31:27,868 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 04:31:27,869 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 04:31:27,869 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 04:31:27,869 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 04:31:27,884 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:31:27" (1/1) ... [2023-12-16 04:31:27,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:31:27" (1/1) ... [2023-12-16 04:31:27,896 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:31:27" (1/1) ... [2023-12-16 04:31:27,928 INFO L175 MemorySlicer]: Split 123 memory accesses to 2 slices as follows [2, 121]. 98 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 12]. The 16 writes are split as follows [0, 16]. [2023-12-16 04:31:27,928 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:31:27" (1/1) ... [2023-12-16 04:31:27,928 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:31:27" (1/1) ... [2023-12-16 04:31:27,936 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:31:27" (1/1) ... [2023-12-16 04:31:27,938 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:31:27" (1/1) ... [2023-12-16 04:31:27,940 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:31:27" (1/1) ... [2023-12-16 04:31:27,941 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:31:27" (1/1) ... [2023-12-16 04:31:27,944 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 04:31:27,944 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 04:31:27,944 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 04:31:27,944 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 04:31:27,945 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:31:27" (1/1) ... [2023-12-16 04:31:27,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:31:27,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:31:27,975 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 04:31:27,982 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 04:31:27,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 04:31:27,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-16 04:31:27,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-16 04:31:27,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-16 04:31:27,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-16 04:31:27,997 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 04:31:27,997 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 04:31:27,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 04:31:27,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 04:31:27,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 04:31:27,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 04:31:28,081 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 04:31:28,082 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 04:31:28,367 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 04:31:28,393 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 04:31:28,393 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 04:31:28,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:31:28 BoogieIcfgContainer [2023-12-16 04:31:28,394 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 04:31:28,395 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 04:31:28,395 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 04:31:28,397 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 04:31:28,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:31:27" (1/3) ... [2023-12-16 04:31:28,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31efba4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:31:28, skipping insertion in model container [2023-12-16 04:31:28,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:31:27" (2/3) ... [2023-12-16 04:31:28,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31efba4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:31:28, skipping insertion in model container [2023-12-16 04:31:28,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:31:28" (3/3) ... [2023-12-16 04:31:28,399 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-27.i [2023-12-16 04:31:28,410 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 04:31:28,411 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 04:31:28,443 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 04:31:28,447 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;@7ef23680, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 04:31:28,447 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 04:31:28,450 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 68 states have internal predecessors, (95), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 04:31:28,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-16 04:31:28,460 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:31:28,461 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:31:28,461 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:31:28,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:31:28,465 INFO L85 PathProgramCache]: Analyzing trace with hash -708701951, now seen corresponding path program 1 times [2023-12-16 04:31:28,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:31:28,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790422204] [2023-12-16 04:31:28,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:28,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:31:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:28,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:31:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:28,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:31:28,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:28,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:31:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:28,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:31:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:28,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:31:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:28,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:31:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:28,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:31:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:28,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:31:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:28,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:31:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:28,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:31:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:28,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:31:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:28,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:31:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:28,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:31:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:28,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:31:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:28,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:31:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:28,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:31:28,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:28,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:31:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:28,809 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 04:31:28,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:31:28,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790422204] [2023-12-16 04:31:28,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790422204] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:31:28,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:31:28,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 04:31:28,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713182920] [2023-12-16 04:31:28,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:31:28,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 04:31:28,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:31:28,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 04:31:28,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:31:28,840 INFO L87 Difference]: Start difference. First operand has 87 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 68 states have internal predecessors, (95), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 04:31:28,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:31:28,881 INFO L93 Difference]: Finished difference Result 171 states and 273 transitions. [2023-12-16 04:31:28,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 04:31:28,883 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 126 [2023-12-16 04:31:28,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:31:28,887 INFO L225 Difference]: With dead ends: 171 [2023-12-16 04:31:28,888 INFO L226 Difference]: Without dead ends: 85 [2023-12-16 04:31:28,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 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 04:31:28,892 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:31:28,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:31:28,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-12-16 04:31:28,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2023-12-16 04:31:28,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 66 states have internal predecessors, (90), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 04:31:28,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 124 transitions. [2023-12-16 04:31:28,935 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 124 transitions. Word has length 126 [2023-12-16 04:31:28,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:31:28,936 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 124 transitions. [2023-12-16 04:31:28,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 04:31:28,936 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 124 transitions. [2023-12-16 04:31:28,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-16 04:31:28,939 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:31:28,939 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:31:28,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 04:31:28,939 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:31:28,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:31:28,940 INFO L85 PathProgramCache]: Analyzing trace with hash -941775073, now seen corresponding path program 1 times [2023-12-16 04:31:28,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:31:28,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048225662] [2023-12-16 04:31:28,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:28,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:31:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:30,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:31:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:30,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:31:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:30,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:31:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:30,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:31:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:30,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:31:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:30,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:31:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:30,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:31:30,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:30,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:31:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:30,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:31:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:30,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:31:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:30,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:31:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:30,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:31:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:30,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:31:30,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:30,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:31:30,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:30,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:31:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:30,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:31:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:30,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:31:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:30,273 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 04:31:30,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:31:30,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048225662] [2023-12-16 04:31:30,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048225662] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:31:30,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:31:30,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 04:31:30,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753741318] [2023-12-16 04:31:30,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:31:30,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 04:31:30,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:31:30,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 04:31:30,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:31:30,280 INFO L87 Difference]: Start difference. First operand 85 states and 124 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 04:31:30,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:31:30,579 INFO L93 Difference]: Finished difference Result 225 states and 329 transitions. [2023-12-16 04:31:30,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:31:30,579 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 126 [2023-12-16 04:31:30,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:31:30,584 INFO L225 Difference]: With dead ends: 225 [2023-12-16 04:31:30,584 INFO L226 Difference]: Without dead ends: 141 [2023-12-16 04:31:30,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:31:30,587 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 51 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:31:30,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 378 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:31:30,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-12-16 04:31:30,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 131. [2023-12-16 04:31:30,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 94 states have (on average 1.297872340425532) internal successors, (122), 94 states have internal predecessors, (122), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 04:31:30,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 190 transitions. [2023-12-16 04:31:30,615 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 190 transitions. Word has length 126 [2023-12-16 04:31:30,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:31:30,617 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 190 transitions. [2023-12-16 04:31:30,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 04:31:30,617 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 190 transitions. [2023-12-16 04:31:30,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-16 04:31:30,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:31:30,622 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:31:30,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 04:31:30,622 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:31:30,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:31:30,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1052369633, now seen corresponding path program 1 times [2023-12-16 04:31:30,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:31:30,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501195726] [2023-12-16 04:31:30,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:30,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:31:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:31,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:31:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:31,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:31:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:31,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:31:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:31,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:31:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:31,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:31:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:31,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:31:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:31,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:31:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:31,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:31:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:31,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:31:31,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:31,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:31:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:31,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:31:31,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:31,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:31:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:31,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:31:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:31,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:31:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:31,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:31:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:31,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:31:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:31,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:31:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:31,317 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 04:31:31,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:31:31,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501195726] [2023-12-16 04:31:31,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501195726] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:31:31,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:31:31,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 04:31:31,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437023761] [2023-12-16 04:31:31,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:31:31,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:31:31,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:31:31,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:31:31,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:31:31,322 INFO L87 Difference]: Start difference. First operand 131 states and 190 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 04:31:31,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:31:31,644 INFO L93 Difference]: Finished difference Result 224 states and 327 transitions. [2023-12-16 04:31:31,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:31:31,645 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 126 [2023-12-16 04:31:31,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:31:31,648 INFO L225 Difference]: With dead ends: 224 [2023-12-16 04:31:31,648 INFO L226 Difference]: Without dead ends: 140 [2023-12-16 04:31:31,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:31:31,652 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 113 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:31:31,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 213 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:31:31,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-12-16 04:31:31,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 139. [2023-12-16 04:31:31,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 102 states have (on average 1.303921568627451) internal successors, (133), 102 states have internal predecessors, (133), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 04:31:31,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 201 transitions. [2023-12-16 04:31:31,684 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 201 transitions. Word has length 126 [2023-12-16 04:31:31,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:31:31,684 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 201 transitions. [2023-12-16 04:31:31,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 04:31:31,685 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 201 transitions. [2023-12-16 04:31:31,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-16 04:31:31,687 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:31:31,687 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:31:31,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 04:31:31,688 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:31:31,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:31:31,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1550115519, now seen corresponding path program 1 times [2023-12-16 04:31:31,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:31:31,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457951366] [2023-12-16 04:31:31,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:31,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:31:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:33,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:31:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:33,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:31:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:33,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:31:33,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:33,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:31:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:33,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:31:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:33,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:31:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:33,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:31:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:33,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:31:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:33,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:31:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:33,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:31:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:33,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:31:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:33,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:31:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:33,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:31:33,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:33,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:31:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:33,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:31:33,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:33,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:31:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:33,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:31:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:33,381 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 04:31:33,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:31:33,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457951366] [2023-12-16 04:31:33,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457951366] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:31:33,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:31:33,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 04:31:33,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068636970] [2023-12-16 04:31:33,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:31:33,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 04:31:33,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:31:33,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 04:31:33,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-16 04:31:33,383 INFO L87 Difference]: Start difference. First operand 139 states and 201 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 04:31:34,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:31:34,169 INFO L93 Difference]: Finished difference Result 249 states and 361 transitions. [2023-12-16 04:31:34,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 04:31:34,171 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 127 [2023-12-16 04:31:34,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:31:34,172 INFO L225 Difference]: With dead ends: 249 [2023-12-16 04:31:34,173 INFO L226 Difference]: Without dead ends: 157 [2023-12-16 04:31:34,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2023-12-16 04:31:34,177 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 194 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 04:31:34,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 251 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 04:31:34,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2023-12-16 04:31:34,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 144. [2023-12-16 04:31:34,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 107 states have (on average 1.2990654205607477) internal successors, (139), 107 states have internal predecessors, (139), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 04:31:34,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 207 transitions. [2023-12-16 04:31:34,208 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 207 transitions. Word has length 127 [2023-12-16 04:31:34,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:31:34,208 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 207 transitions. [2023-12-16 04:31:34,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 04:31:34,208 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 207 transitions. [2023-12-16 04:31:34,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-16 04:31:34,209 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:31:34,209 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:31:34,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 04:31:34,209 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:31:34,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:31:34,210 INFO L85 PathProgramCache]: Analyzing trace with hash 538998269, now seen corresponding path program 1 times [2023-12-16 04:31:34,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:31:34,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658649055] [2023-12-16 04:31:34,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:34,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:31:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:35,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:31:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:35,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:31:35,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:35,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:31:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:35,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:31:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:35,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:31:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:35,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:31:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:35,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:31:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:35,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:31:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:35,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:31:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:35,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:31:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:35,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:31:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:35,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:31:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:35,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:31:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:35,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:31:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:35,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:31:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:35,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:31:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:35,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:31:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:35,189 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 04:31:35,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:31:35,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658649055] [2023-12-16 04:31:35,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658649055] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:31:35,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:31:35,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 04:31:35,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625529612] [2023-12-16 04:31:35,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:31:35,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 04:31:35,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:31:35,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 04:31:35,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:31:35,192 INFO L87 Difference]: Start difference. First operand 144 states and 207 transitions. Second operand has 10 states, 9 states have (on average 5.0) internal successors, (45), 10 states have internal predecessors, (45), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 04:31:35,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:31:35,631 INFO L93 Difference]: Finished difference Result 275 states and 397 transitions. [2023-12-16 04:31:35,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 04:31:35,632 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.0) internal successors, (45), 10 states have internal predecessors, (45), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 127 [2023-12-16 04:31:35,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:31:35,633 INFO L225 Difference]: With dead ends: 275 [2023-12-16 04:31:35,633 INFO L226 Difference]: Without dead ends: 178 [2023-12-16 04:31:35,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-12-16 04:31:35,633 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 225 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:31:35,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 244 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:31:35,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-12-16 04:31:35,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 161. [2023-12-16 04:31:35,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 124 states have (on average 1.3225806451612903) internal successors, (164), 124 states have internal predecessors, (164), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 04:31:35,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 232 transitions. [2023-12-16 04:31:35,660 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 232 transitions. Word has length 127 [2023-12-16 04:31:35,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:31:35,660 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 232 transitions. [2023-12-16 04:31:35,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.0) internal successors, (45), 10 states have internal predecessors, (45), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 04:31:35,661 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 232 transitions. [2023-12-16 04:31:35,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-16 04:31:35,661 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:31:35,662 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:31:35,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 04:31:35,662 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:31:35,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:31:35,662 INFO L85 PathProgramCache]: Analyzing trace with hash 2043378533, now seen corresponding path program 1 times [2023-12-16 04:31:35,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:31:35,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881756531] [2023-12-16 04:31:35,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:35,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:31:35,700 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:31:35,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [565081192] [2023-12-16 04:31:35,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:35,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:31:35,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:31:35,703 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) [2023-12-16 04:31:35,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 04:31:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:35,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-16 04:31:35,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:31:37,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:37,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:37,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:37,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2023-12-16 04:31:37,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:37,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:37,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:37,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:37,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:37,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:37,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 27 [2023-12-16 04:31:37,661 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 24 proven. 24 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-16 04:31:37,661 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:31:37,777 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 04:31:37,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1684 treesize of output 1391 [2023-12-16 04:31:38,753 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:38,763 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:38,769 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:39,073 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:39,078 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:39,082 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:39,147 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:39,151 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:39,155 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:39,209 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:39,238 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:39,260 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:39,338 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:39,373 WARN L667 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-12-16 04:31:39,392 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:39,402 WARN L667 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-12-16 04:31:39,421 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:39,441 WARN L667 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-12-16 04:31:39,460 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:39,494 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:39,508 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:39,555 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:40,257 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:40,271 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:41,384 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:41,388 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:41,391 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:41,508 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:41,513 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:41,516 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:41,735 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:41,739 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:41,742 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:41,805 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:41,840 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:41,860 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:41,951 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:41,990 WARN L667 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-12-16 04:31:42,012 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:42,025 WARN L667 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-12-16 04:31:42,047 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:42,070 WARN L667 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-12-16 04:31:42,092 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:42,137 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:42,153 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:42,205 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:42,307 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:42,312 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:42,316 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:43,847 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:43,852 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:43,857 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:44,018 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:44,025 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:44,029 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:44,166 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:44,170 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:44,174 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:44,204 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:44,208 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:44,212 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:44,265 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:44,306 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:44,325 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:44,414 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:44,452 WARN L667 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-12-16 04:31:44,479 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:44,489 WARN L667 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-12-16 04:31:44,511 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:44,545 WARN L667 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-12-16 04:31:44,568 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-16 04:31:44,607 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:44,624 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:44,674 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:45,894 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:45,930 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:45,955 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:46,175 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:46,192 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:46,985 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:47,026 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:47,048 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:47,285 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:47,305 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:49,171 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-16 04:31:51,125 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 04:31:51,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:31:51,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881756531] [2023-12-16 04:31:51,126 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:31:51,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565081192] [2023-12-16 04:31:51,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565081192] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 04:31:51,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:31:51,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2023-12-16 04:31:51,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883556160] [2023-12-16 04:31:51,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:31:51,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 04:31:51,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:31:51,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 04:31:51,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-12-16 04:31:51,127 INFO L87 Difference]: Start difference. First operand 161 states and 232 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 04:31:51,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:31:51,783 INFO L93 Difference]: Finished difference Result 329 states and 476 transitions. [2023-12-16 04:31:51,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 04:31:51,791 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 127 [2023-12-16 04:31:51,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:31:51,792 INFO L225 Difference]: With dead ends: 329 [2023-12-16 04:31:51,792 INFO L226 Difference]: Without dead ends: 221 [2023-12-16 04:31:51,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2023-12-16 04:31:51,794 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 192 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 04:31:51,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 386 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 04:31:51,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-12-16 04:31:51,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 174. [2023-12-16 04:31:51,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 137 states have (on average 1.3284671532846715) internal successors, (182), 137 states have internal predecessors, (182), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 04:31:51,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 250 transitions. [2023-12-16 04:31:51,820 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 250 transitions. Word has length 127 [2023-12-16 04:31:51,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:31:51,820 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 250 transitions. [2023-12-16 04:31:51,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 04:31:51,821 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 250 transitions. [2023-12-16 04:31:51,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-16 04:31:51,821 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:31:51,822 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:31:51,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 04:31:52,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-16 04:31:52,026 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:31:52,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:31:52,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1137397410, now seen corresponding path program 1 times [2023-12-16 04:31:52,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:31:52,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685788215] [2023-12-16 04:31:52,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:52,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:31:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:52,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:31:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:52,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:31:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:52,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:31:52,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:52,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:31:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:52,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:31:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:52,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:31:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:52,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:31:52,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:52,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:31:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:52,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:31:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:52,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:31:52,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:52,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:31:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:52,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:31:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:52,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:31:52,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:52,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:31:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:52,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:31:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:52,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:31:52,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:52,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:31:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:52,367 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 04:31:52,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:31:52,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685788215] [2023-12-16 04:31:52,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685788215] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:31:52,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:31:52,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 04:31:52,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672400106] [2023-12-16 04:31:52,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:31:52,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:31:52,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:31:52,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:31:52,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:31:52,368 INFO L87 Difference]: Start difference. First operand 174 states and 250 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 04:31:52,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:31:52,701 INFO L93 Difference]: Finished difference Result 342 states and 493 transitions. [2023-12-16 04:31:52,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 04:31:52,703 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 128 [2023-12-16 04:31:52,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:31:52,706 INFO L225 Difference]: With dead ends: 342 [2023-12-16 04:31:52,706 INFO L226 Difference]: Without dead ends: 221 [2023-12-16 04:31:52,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-12-16 04:31:52,707 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 321 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:31:52,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 269 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:31:52,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-12-16 04:31:52,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 174. [2023-12-16 04:31:52,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 137 states have (on average 1.3211678832116789) internal successors, (181), 137 states have internal predecessors, (181), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 04:31:52,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 249 transitions. [2023-12-16 04:31:52,728 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 249 transitions. Word has length 128 [2023-12-16 04:31:52,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:31:52,729 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 249 transitions. [2023-12-16 04:31:52,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 04:31:52,729 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 249 transitions. [2023-12-16 04:31:52,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-16 04:31:52,730 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:31:52,730 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:31:52,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 04:31:52,731 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:31:52,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:31:52,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1541838250, now seen corresponding path program 1 times [2023-12-16 04:31:52,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:31:52,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926544818] [2023-12-16 04:31:52,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:52,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:31:52,746 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:31:52,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [159260335] [2023-12-16 04:31:52,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:52,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:31:52,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:31:52,748 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) [2023-12-16 04:31:52,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 04:31:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:52,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 42 conjunts are in the unsatisfiable core [2023-12-16 04:31:52,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:31:55,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-16 04:31:55,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:55,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 15 [2023-12-16 04:31:55,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:55,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:55,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:55,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:55,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:55,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:55,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:55,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:55,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:55,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2023-12-16 04:31:56,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:56,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:56,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:56,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:56,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:56,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:56,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:56,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:56,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:56,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:56,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:56,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:56,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:56,148 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2023-12-16 04:31:56,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 57 [2023-12-16 04:31:56,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:56,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:56,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:31:56,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 23 [2023-12-16 04:31:56,255 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 04:31:56,255 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:31:56,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:31:56,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926544818] [2023-12-16 04:31:56,255 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:31:56,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159260335] [2023-12-16 04:31:56,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159260335] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:31:56,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:31:56,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 04:31:56,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556152138] [2023-12-16 04:31:56,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:31:56,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 04:31:56,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:31:56,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 04:31:56,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:31:56,256 INFO L87 Difference]: Start difference. First operand 174 states and 249 transitions. Second operand has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 04:31:59,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:31:59,454 INFO L93 Difference]: Finished difference Result 363 states and 520 transitions. [2023-12-16 04:31:59,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 04:31:59,457 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129 [2023-12-16 04:31:59,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:31:59,458 INFO L225 Difference]: With dead ends: 363 [2023-12-16 04:31:59,458 INFO L226 Difference]: Without dead ends: 242 [2023-12-16 04:31:59,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2023-12-16 04:31:59,459 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 373 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 5 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 04:31:59,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 358 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 645 Invalid, 13 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 04:31:59,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2023-12-16 04:31:59,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 184. [2023-12-16 04:31:59,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 147 states have (on average 1.3265306122448979) internal successors, (195), 147 states have internal predecessors, (195), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 04:31:59,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 263 transitions. [2023-12-16 04:31:59,483 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 263 transitions. Word has length 129 [2023-12-16 04:31:59,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:31:59,483 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 263 transitions. [2023-12-16 04:31:59,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 04:31:59,484 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 263 transitions. [2023-12-16 04:31:59,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-16 04:31:59,485 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:31:59,485 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:31:59,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 04:31:59,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-16 04:31:59,690 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:31:59,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:31:59,691 INFO L85 PathProgramCache]: Analyzing trace with hash -2052064468, now seen corresponding path program 1 times [2023-12-16 04:31:59,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:31:59,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226706796] [2023-12-16 04:31:59,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:59,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:31:59,708 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:31:59,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1512494868] [2023-12-16 04:31:59,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:59,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:31:59,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:31:59,709 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:31:59,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 04:31:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:59,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-16 04:31:59,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:32:00,802 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-12-16 04:32:00,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2023-12-16 04:32:00,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:00,867 INFO L349 Elim1Store]: treesize reduction 52, result has 42.9 percent of original size [2023-12-16 04:32:00,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 31 treesize of output 58 [2023-12-16 04:32:00,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:00,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-16 04:32:00,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-12-16 04:32:00,946 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 04:32:00,947 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:32:00,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:32:00,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226706796] [2023-12-16 04:32:00,947 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:32:00,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512494868] [2023-12-16 04:32:00,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512494868] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:32:00,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:32:00,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:32:00,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422085412] [2023-12-16 04:32:00,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:32:00,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 04:32:00,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:32:00,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 04:32:00,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:32:00,949 INFO L87 Difference]: Start difference. First operand 184 states and 263 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 04:32:01,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:32:01,231 INFO L93 Difference]: Finished difference Result 338 states and 483 transitions. [2023-12-16 04:32:01,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 04:32:01,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129 [2023-12-16 04:32:01,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:32:01,233 INFO L225 Difference]: With dead ends: 338 [2023-12-16 04:32:01,233 INFO L226 Difference]: Without dead ends: 207 [2023-12-16 04:32:01,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 122 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:32:01,235 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 205 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:32:01,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 228 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:32:01,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-12-16 04:32:01,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 174. [2023-12-16 04:32:01,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 137 states have (on average 1.313868613138686) internal successors, (180), 137 states have internal predecessors, (180), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 04:32:01,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 248 transitions. [2023-12-16 04:32:01,264 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 248 transitions. Word has length 129 [2023-12-16 04:32:01,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:32:01,266 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 248 transitions. [2023-12-16 04:32:01,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 04:32:01,267 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 248 transitions. [2023-12-16 04:32:01,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-16 04:32:01,267 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:32:01,267 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:32:01,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 04:32:01,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:32:01,474 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:32:01,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:32:01,474 INFO L85 PathProgramCache]: Analyzing trace with hash 942570427, now seen corresponding path program 1 times [2023-12-16 04:32:01,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:32:01,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82150780] [2023-12-16 04:32:01,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:01,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:32:01,491 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:32:01,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1245602248] [2023-12-16 04:32:01,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:01,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:32:01,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:32:01,492 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:32:01,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 04:32:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:01,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 04:32:01,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:32:01,641 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 04:32:01,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:32:01,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:32:01,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82150780] [2023-12-16 04:32:01,642 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:32:01,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245602248] [2023-12-16 04:32:01,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245602248] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:32:01,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:32:01,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:32:01,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138445632] [2023-12-16 04:32:01,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:32:01,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 04:32:01,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:32:01,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 04:32:01,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:32:01,643 INFO L87 Difference]: Start difference. First operand 174 states and 248 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 04:32:01,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:32:01,683 INFO L93 Difference]: Finished difference Result 313 states and 447 transitions. [2023-12-16 04:32:01,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:32:01,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 130 [2023-12-16 04:32:01,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:32:01,684 INFO L225 Difference]: With dead ends: 313 [2023-12-16 04:32:01,684 INFO L226 Difference]: Without dead ends: 192 [2023-12-16 04:32:01,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:32:01,685 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 25 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:32:01,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 233 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:32:01,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-12-16 04:32:01,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 175. [2023-12-16 04:32:01,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 138 states have (on average 1.3115942028985508) internal successors, (181), 138 states have internal predecessors, (181), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 04:32:01,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 249 transitions. [2023-12-16 04:32:01,711 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 249 transitions. Word has length 130 [2023-12-16 04:32:01,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:32:01,711 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 249 transitions. [2023-12-16 04:32:01,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 04:32:01,711 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 249 transitions. [2023-12-16 04:32:01,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-16 04:32:01,712 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:32:01,712 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:32:01,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-16 04:32:01,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:32:01,918 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:32:01,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:32:01,918 INFO L85 PathProgramCache]: Analyzing trace with hash 262512057, now seen corresponding path program 1 times [2023-12-16 04:32:01,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:32:01,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935706095] [2023-12-16 04:32:01,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:01,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:32:01,936 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:32:01,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [90933034] [2023-12-16 04:32:01,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:01,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:32:01,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:32:01,937 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:32:01,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 04:32:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:02,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 63 conjunts are in the unsatisfiable core [2023-12-16 04:32:02,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:32:02,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-12-16 04:32:05,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2023-12-16 04:32:05,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,255 INFO L349 Elim1Store]: treesize reduction 61, result has 10.3 percent of original size [2023-12-16 04:32:05,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 41 [2023-12-16 04:32:05,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,398 INFO L349 Elim1Store]: treesize reduction 80, result has 32.8 percent of original size [2023-12-16 04:32:05,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 52 treesize of output 84 [2023-12-16 04:32:05,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:05,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:06,182 INFO L349 Elim1Store]: treesize reduction 336, result has 33.9 percent of original size [2023-12-16 04:32:06,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 14 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 41 case distinctions, treesize of input 129 treesize of output 264 Received shutdown request... [2023-12-16 04:32:30,833 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 04:32:30,833 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 04:32:30,835 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 04:32:30,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-16 04:32:31,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-16 04:32:31,044 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 131 with TraceHistMax 17,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 5 xjuncts wrt. a ∧-25-4-2-2-3-2-1 context. [2023-12-16 04:32:31,048 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:32:31,049 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 04:32:31,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:32:31 BoogieIcfgContainer [2023-12-16 04:32:31,051 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 04:32:31,051 INFO L158 Benchmark]: Toolchain (without parser) took 63455.94ms. Allocated memory was 223.3MB in the beginning and 1.1GB in the end (delta: 904.9MB). Free memory was 161.7MB in the beginning and 477.3MB in the end (delta: -315.5MB). Peak memory consumption was 665.1MB. Max. memory is 8.0GB. [2023-12-16 04:32:31,051 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 223.3MB. Free memory is still 174.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 04:32:31,051 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.83ms. Allocated memory is still 223.3MB. Free memory was 161.7MB in the beginning and 146.9MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-16 04:32:31,051 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.77ms. Allocated memory is still 223.3MB. Free memory was 146.9MB in the beginning and 143.6MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 04:32:31,052 INFO L158 Benchmark]: Boogie Preprocessor took 74.91ms. Allocated memory was 223.3MB in the beginning and 328.2MB in the end (delta: 104.9MB). Free memory was 143.6MB in the beginning and 292.7MB in the end (delta: -149.2MB). Peak memory consumption was 8.1MB. Max. memory is 8.0GB. [2023-12-16 04:32:31,052 INFO L158 Benchmark]: RCFGBuilder took 449.31ms. Allocated memory is still 328.2MB. Free memory was 292.7MB in the beginning and 263.4MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-12-16 04:32:31,052 INFO L158 Benchmark]: TraceAbstraction took 62655.60ms. Allocated memory was 328.2MB in the beginning and 1.1GB in the end (delta: 800.1MB). Free memory was 262.8MB in the beginning and 477.3MB in the end (delta: -214.5MB). Peak memory consumption was 660.1MB. Max. memory is 8.0GB. [2023-12-16 04:32:31,053 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 223.3MB. Free memory is still 174.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 229.83ms. Allocated memory is still 223.3MB. Free memory was 161.7MB in the beginning and 146.9MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.77ms. Allocated memory is still 223.3MB. Free memory was 146.9MB in the beginning and 143.6MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 74.91ms. Allocated memory was 223.3MB in the beginning and 328.2MB in the end (delta: 104.9MB). Free memory was 143.6MB in the beginning and 292.7MB in the end (delta: -149.2MB). Peak memory consumption was 8.1MB. Max. memory is 8.0GB. * RCFGBuilder took 449.31ms. Allocated memory is still 328.2MB. Free memory was 292.7MB in the beginning and 263.4MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 62655.60ms. Allocated memory was 328.2MB in the beginning and 1.1GB in the end (delta: 800.1MB). Free memory was 262.8MB in the beginning and 477.3MB in the end (delta: -214.5MB). Peak memory consumption was 660.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 131 with TraceHistMax 17,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 5 xjuncts wrt. a ∧-25-4-2-2-3-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 62.6s, OverallIterations: 11, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 13 mSolverCounterUnknown, 1700 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1699 mSDsluCounter, 2680 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1728 mSDsCounter, 101 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3380 IncrementalHoareTripleChecker+Invalid, 3494 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 101 mSolverCounterUnsat, 952 mSDtfsCounter, 3380 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 959 GetRequests, 856 SyntacticMatches, 5 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=184occurred in iteration=8, InterpolantAutomatonStates: 69, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 243 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 24.6s InterpolantComputationTime, 1275 NumberOfCodeBlocks, 1275 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1391 ConstructedInterpolants, 13 QuantifiedInterpolants, 23138 SizeOfPredicates, 59 NumberOfNonLiveVariables, 1692 ConjunctsInSsa, 108 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 5960/5984 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